From d561a84d48b64dc0f23e0f0a152b72e5a8f62161 Mon Sep 17 00:00:00 2001 From: Veera Date: Sun, 3 Mar 2024 09:10:06 -0500 Subject: [PATCH 01/54] Update tests --- tests/ui/asm/bad-template.aarch64.stderr | 4 ++-- tests/ui/asm/bad-template.x86_64.stderr | 4 ++-- tests/ui/asm/x86_64/type-check-3.stderr | 16 ++++++++-------- 3 files changed, 12 insertions(+), 12 deletions(-) diff --git a/tests/ui/asm/bad-template.aarch64.stderr b/tests/ui/asm/bad-template.aarch64.stderr index b18946d7c6d85..5023cf317d7b0 100644 --- a/tests/ui/asm/bad-template.aarch64.stderr +++ b/tests/ui/asm/bad-template.aarch64.stderr @@ -194,8 +194,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{:foo}", in(reg) foo); | ^^^^^^ --- for this argument | - = help: use `{0:w}` to have the register formatted as `w0` - = help: or use `{0:x}` to keep the default formatting of `x0` + = help: use `{0:w}` to have the register formatted as `w0` (for 32-bit values) + = help: or use `{0:x}` to keep the default formatting of `x0` (for 64-bit values) = note: `#[warn(asm_sub_register)]` on by default error: aborting due to 21 previous errors; 1 warning emitted diff --git a/tests/ui/asm/bad-template.x86_64.stderr b/tests/ui/asm/bad-template.x86_64.stderr index 2f584c30a3282..1b9775636f564 100644 --- a/tests/ui/asm/bad-template.x86_64.stderr +++ b/tests/ui/asm/bad-template.x86_64.stderr @@ -194,8 +194,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{:foo}", in(reg) foo); | ^^^^^^ --- for this argument | - = help: use `{0:e}` to have the register formatted as `eax` - = help: or use `{0:r}` to keep the default formatting of `rax` + = help: use `{0:e}` to have the register formatted as `eax` (for 32-bit values) + = help: or use `{0:r}` to keep the default formatting of `rax` (for 64-bit values) = note: `#[warn(asm_sub_register)]` on by default error: aborting due to 21 previous errors; 1 warning emitted diff --git a/tests/ui/asm/x86_64/type-check-3.stderr b/tests/ui/asm/x86_64/type-check-3.stderr index 1baf50ff6e0c7..34bfcd71caca7 100644 --- a/tests/ui/asm/x86_64/type-check-3.stderr +++ b/tests/ui/asm/x86_64/type-check-3.stderr @@ -44,8 +44,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{0} {0}", in(reg) 0i16); | ^^^ ^^^ ---- for this argument | - = help: use `{0:x}` to have the register formatted as `ax` - = help: or use `{0:r}` to keep the default formatting of `rax` + = help: use `{0:x}` to have the register formatted as `ax` (for 16-bit values) + = help: or use `{0:r}` to keep the default formatting of `rax` (for 64-bit values) = note: `#[warn(asm_sub_register)]` on by default warning: formatting may not be suitable for sub-register argument @@ -54,8 +54,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{0} {0:x}", in(reg) 0i16); | ^^^ ---- for this argument | - = help: use `{0:x}` to have the register formatted as `ax` - = help: or use `{0:r}` to keep the default formatting of `rax` + = help: use `{0:x}` to have the register formatted as `ax` (for 16-bit values) + = help: or use `{0:r}` to keep the default formatting of `rax` (for 64-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:38:15 @@ -63,8 +63,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(reg) 0i32); | ^^ ---- for this argument | - = help: use `{0:e}` to have the register formatted as `eax` - = help: or use `{0:r}` to keep the default formatting of `rax` + = help: use `{0:e}` to have the register formatted as `eax` (for 32-bit values) + = help: or use `{0:r}` to keep the default formatting of `rax` (for 64-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:41:15 @@ -72,8 +72,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(ymm_reg) 0i64); | ^^ ---- for this argument | - = help: use `{0:x}` to have the register formatted as `xmm0` - = help: or use `{0:y}` to keep the default formatting of `ymm0` + = help: use `{0:x}` to have the register formatted as `xmm0` (for 128-bit values) + = help: or use `{0:y}` to keep the default formatting of `ymm0` (for 256-bit values) error: type `i8` cannot be used with this register class --> $DIR/type-check-3.rs:52:28 From 9aac0c9ae39de7046af35788d19e5f9310e4cbb7 Mon Sep 17 00:00:00 2001 From: Veera Date: Sun, 3 Mar 2024 09:34:26 -0500 Subject: [PATCH 02/54] Mention Register Size in `#[warn(asm_sub_register)]` Fixes #121593 --- .../src/check/intrinsicck.rs | 22 ++++++++---- compiler/rustc_target/src/asm/aarch64.rs | 26 ++++++-------- compiler/rustc_target/src/asm/arm.rs | 6 ++-- compiler/rustc_target/src/asm/avr.rs | 6 ++-- compiler/rustc_target/src/asm/bpf.rs | 6 ++-- compiler/rustc_target/src/asm/csky.rs | 6 ++-- compiler/rustc_target/src/asm/hexagon.rs | 6 ++-- compiler/rustc_target/src/asm/loongarch.rs | 6 ++-- compiler/rustc_target/src/asm/m68k.rs | 6 ++-- compiler/rustc_target/src/asm/mips.rs | 6 ++-- compiler/rustc_target/src/asm/mod.rs | 20 +++++++---- compiler/rustc_target/src/asm/msp430.rs | 6 ++-- compiler/rustc_target/src/asm/nvptx.rs | 6 ++-- compiler/rustc_target/src/asm/powerpc.rs | 6 ++-- compiler/rustc_target/src/asm/riscv.rs | 6 ++-- compiler/rustc_target/src/asm/s390x.rs | 6 ++-- compiler/rustc_target/src/asm/spirv.rs | 6 ++-- compiler/rustc_target/src/asm/wasm.rs | 6 ++-- compiler/rustc_target/src/asm/x86.rs | 34 ++++++++----------- 19 files changed, 100 insertions(+), 92 deletions(-) diff --git a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs index d03b02f028da1..c78a6004f7ac2 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs @@ -6,7 +6,9 @@ use rustc_session::lint; use rustc_span::def_id::LocalDefId; use rustc_span::Symbol; use rustc_target::abi::FieldIdx; -use rustc_target::asm::{InlineAsmReg, InlineAsmRegClass, InlineAsmRegOrRegClass, InlineAsmType}; +use rustc_target::asm::{ + InlineAsmReg, InlineAsmRegClass, InlineAsmRegOrRegClass, InlineAsmType, ModifierInfo, +}; pub struct InlineAsmCtxt<'a, 'tcx> { tcx: TyCtxt<'tcx>, @@ -253,8 +255,11 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { } // Check whether a modifier is suggested for using this type. - if let Some((suggested_modifier, suggested_result)) = - reg_class.suggest_modifier(asm_arch, asm_ty) + if let Some(ModifierInfo { + modifier: suggested_modifier, + result: suggested_result, + size: suggested_size, + }) = reg_class.suggest_modifier(asm_arch, asm_ty) { // Search for any use of this operand without a modifier and emit // the suggestion for them. @@ -268,8 +273,11 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { } } if !spans.is_empty() { - let (default_modifier, default_result) = - reg_class.default_modifier(asm_arch).unwrap(); + let ModifierInfo { + modifier: default_modifier, + result: default_result, + size: default_size, + } = reg_class.default_modifier(asm_arch).unwrap(); self.tcx.node_span_lint( lint::builtin::ASM_SUB_REGISTER, expr.hir_id, @@ -278,10 +286,10 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { |lint| { lint.span_label(expr.span, "for this argument"); lint.help(format!( - "use `{{{idx}:{suggested_modifier}}}` to have the register formatted as `{suggested_result}`", + "use `{{{idx}:{suggested_modifier}}}` to have the register formatted as `{suggested_result}` (for {suggested_size}-bit values)", )); lint.help(format!( - "or use `{{{idx}:{default_modifier}}}` to keep the default formatting of `{default_result}`", + "or use `{{{idx}:{default_modifier}}}` to keep the default formatting of `{default_result}` (for {default_size}-bit values)", )); }, ); diff --git a/compiler/rustc_target/src/asm/aarch64.rs b/compiler/rustc_target/src/asm/aarch64.rs index 97132311a5c9a..70528c1222c44 100644 --- a/compiler/rustc_target/src/asm/aarch64.rs +++ b/compiler/rustc_target/src/asm/aarch64.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use crate::spec::{RelocModel, Target}; use rustc_data_structures::fx::FxIndexSet; use rustc_macros::HashStable_Generic; @@ -27,32 +27,28 @@ impl AArch64InlineAsmRegClass { None } - pub fn suggest_modifier( - self, - _arch: InlineAsmArch, - ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + pub fn suggest_modifier(self, _arch: InlineAsmArch, ty: InlineAsmType) -> Option { match self { Self::reg => match ty.size().bits() { 64 => None, - _ => Some(('w', "w0")), + _ => Some(('w', "w0", 32).into()), }, Self::vreg | Self::vreg_low16 => match ty.size().bits() { - 8 => Some(('b', "b0")), - 16 => Some(('h', "h0")), - 32 => Some(('s', "s0")), - 64 => Some(('d', "d0")), - 128 => Some(('q', "q0")), + 8 => Some(('b', "b0", 8).into()), + 16 => Some(('h', "h0", 16).into()), + 32 => Some(('s', "s0", 32).into()), + 64 => Some(('d', "d0", 64).into()), + 128 => Some(('q', "q0", 128).into()), _ => None, }, Self::preg => None, } } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { match self { - Self::reg => Some(('x', "x0")), - Self::vreg | Self::vreg_low16 => Some(('v', "v0")), + Self::reg => Some(('x', "x0", 64).into()), + Self::vreg | Self::vreg_low16 => Some(('v', "v0", 128).into()), Self::preg => None, } } diff --git a/compiler/rustc_target/src/asm/arm.rs b/compiler/rustc_target/src/asm/arm.rs index 514e30ae0204d..f56dbac708b65 100644 --- a/compiler/rustc_target/src/asm/arm.rs +++ b/compiler/rustc_target/src/asm/arm.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use crate::spec::{RelocModel, Target}; use rustc_data_structures::fx::FxIndexSet; use rustc_macros::HashStable_Generic; @@ -35,11 +35,11 @@ impl ArmInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/avr.rs b/compiler/rustc_target/src/asm/avr.rs index 9a96a61f5b2cd..eab38a4a4f4a3 100644 --- a/compiler/rustc_target/src/asm/avr.rs +++ b/compiler/rustc_target/src/asm/avr.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -29,11 +29,11 @@ impl AvrInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/bpf.rs b/compiler/rustc_target/src/asm/bpf.rs index 3b03766a089b2..9bc94274675d5 100644 --- a/compiler/rustc_target/src/asm/bpf.rs +++ b/compiler/rustc_target/src/asm/bpf.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -23,11 +23,11 @@ impl BpfInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/csky.rs b/compiler/rustc_target/src/asm/csky.rs index db3d8106040b6..64607ee4b81db 100644 --- a/compiler/rustc_target/src/asm/csky.rs +++ b/compiler/rustc_target/src/asm/csky.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -23,11 +23,11 @@ impl CSKYInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/hexagon.rs b/compiler/rustc_target/src/asm/hexagon.rs index d20270ac9e95a..19da7b8084853 100644 --- a/compiler/rustc_target/src/asm/hexagon.rs +++ b/compiler/rustc_target/src/asm/hexagon.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -22,11 +22,11 @@ impl HexagonInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/loongarch.rs b/compiler/rustc_target/src/asm/loongarch.rs index 9d1a4f3eeeafa..15d0f54ce3b6e 100644 --- a/compiler/rustc_target/src/asm/loongarch.rs +++ b/compiler/rustc_target/src/asm/loongarch.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -23,11 +23,11 @@ impl LoongArchInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/m68k.rs b/compiler/rustc_target/src/asm/m68k.rs index 8c857550cf21a..ac94dcc03dc6b 100644 --- a/compiler/rustc_target/src/asm/m68k.rs +++ b/compiler/rustc_target/src/asm/m68k.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -24,11 +24,11 @@ impl M68kInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/mips.rs b/compiler/rustc_target/src/asm/mips.rs index 4e7c2eb1bf88e..0ac1a43ae183b 100644 --- a/compiler/rustc_target/src/asm/mips.rs +++ b/compiler/rustc_target/src/asm/mips.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -23,11 +23,11 @@ impl MipsInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/mod.rs b/compiler/rustc_target/src/asm/mod.rs index a11884bea268f..bfb6ae0b2d9d2 100644 --- a/compiler/rustc_target/src/asm/mod.rs +++ b/compiler/rustc_target/src/asm/mod.rs @@ -6,6 +6,18 @@ use rustc_span::Symbol; use std::fmt; use std::str::FromStr; +pub struct ModifierInfo { + pub modifier: char, + pub result: &'static str, + pub size: u64, +} + +impl From<(char, &'static str, u64)> for ModifierInfo { + fn from(value: (char, &'static str, u64)) -> Self { + Self { modifier: value.0, result: value.1, size: value.2 } + } +} + macro_rules! def_reg_class { ($arch:ident $arch_regclass:ident { $( @@ -512,11 +524,7 @@ impl InlineAsmRegClass { /// Such suggestions are useful if a type smaller than the full register /// size is used and a modifier can be used to point to the subregister of /// the correct size. - pub fn suggest_modifier( - self, - arch: InlineAsmArch, - ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + pub fn suggest_modifier(self, arch: InlineAsmArch, ty: InlineAsmType) -> Option { match self { Self::X86(r) => r.suggest_modifier(arch, ty), Self::Arm(r) => r.suggest_modifier(arch, ty), @@ -545,7 +553,7 @@ impl InlineAsmRegClass { /// This is only needed when the register class can suggest a modifier, so /// that the user can be shown how to get the default behavior without a /// warning. - pub fn default_modifier(self, arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, arch: InlineAsmArch) -> Option { match self { Self::X86(r) => r.default_modifier(arch), Self::Arm(r) => r.default_modifier(arch), diff --git a/compiler/rustc_target/src/asm/msp430.rs b/compiler/rustc_target/src/asm/msp430.rs index a27d6390a72e8..439f3ba0b575b 100644 --- a/compiler/rustc_target/src/asm/msp430.rs +++ b/compiler/rustc_target/src/asm/msp430.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -22,11 +22,11 @@ impl Msp430InlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/nvptx.rs b/compiler/rustc_target/src/asm/nvptx.rs index 8e1e91e7c5f1f..57aa50fceb88b 100644 --- a/compiler/rustc_target/src/asm/nvptx.rs +++ b/compiler/rustc_target/src/asm/nvptx.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; @@ -23,11 +23,11 @@ impl NvptxInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/powerpc.rs b/compiler/rustc_target/src/asm/powerpc.rs index d3ccb30350a27..4e8cbe34de948 100644 --- a/compiler/rustc_target/src/asm/powerpc.rs +++ b/compiler/rustc_target/src/asm/powerpc.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -26,11 +26,11 @@ impl PowerPCInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/riscv.rs b/compiler/rustc_target/src/asm/riscv.rs index dea6d50fe2ba8..2505d36f5b8a4 100644 --- a/compiler/rustc_target/src/asm/riscv.rs +++ b/compiler/rustc_target/src/asm/riscv.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use crate::spec::{RelocModel, Target}; use rustc_data_structures::fx::FxIndexSet; use rustc_macros::HashStable_Generic; @@ -26,11 +26,11 @@ impl RiscVInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/s390x.rs b/compiler/rustc_target/src/asm/s390x.rs index b8afeb824d847..6bc668454b191 100644 --- a/compiler/rustc_target/src/asm/s390x.rs +++ b/compiler/rustc_target/src/asm/s390x.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; use std::fmt; @@ -24,11 +24,11 @@ impl S390xInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/spirv.rs b/compiler/rustc_target/src/asm/spirv.rs index 31073da10b21b..d13a6131f9ab4 100644 --- a/compiler/rustc_target/src/asm/spirv.rs +++ b/compiler/rustc_target/src/asm/spirv.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; @@ -21,11 +21,11 @@ impl SpirVInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/wasm.rs b/compiler/rustc_target/src/asm/wasm.rs index f095b7c6e118c..eb0b23ef43dd8 100644 --- a/compiler/rustc_target/src/asm/wasm.rs +++ b/compiler/rustc_target/src/asm/wasm.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use rustc_macros::HashStable_Generic; use rustc_span::Symbol; @@ -21,11 +21,11 @@ impl WasmInlineAsmRegClass { self, _arch: InlineAsmArch, _ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + ) -> Option { None } - pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option { None } diff --git a/compiler/rustc_target/src/asm/x86.rs b/compiler/rustc_target/src/asm/x86.rs index 3902dac7ff654..3b5da8806ccc2 100644 --- a/compiler/rustc_target/src/asm/x86.rs +++ b/compiler/rustc_target/src/asm/x86.rs @@ -1,4 +1,4 @@ -use super::{InlineAsmArch, InlineAsmType}; +use super::{InlineAsmArch, InlineAsmType, ModifierInfo}; use crate::spec::{RelocModel, Target}; use rustc_data_structures::fx::FxIndexSet; use rustc_macros::HashStable_Generic; @@ -53,32 +53,28 @@ impl X86InlineAsmRegClass { } } - pub fn suggest_modifier( - self, - arch: InlineAsmArch, - ty: InlineAsmType, - ) -> Option<(char, &'static str)> { + pub fn suggest_modifier(self, arch: InlineAsmArch, ty: InlineAsmType) -> Option { match self { Self::reg => match ty.size().bits() { - 16 => Some(('x', "ax")), - 32 if arch == InlineAsmArch::X86_64 => Some(('e', "eax")), + 16 => Some(('x', "ax", 16).into()), + 32 if arch == InlineAsmArch::X86_64 => Some(('e', "eax", 32).into()), _ => None, }, Self::reg_abcd => match ty.size().bits() { - 16 => Some(('x', "ax")), - 32 if arch == InlineAsmArch::X86_64 => Some(('e', "eax")), + 16 => Some(('x', "ax", 16).into()), + 32 if arch == InlineAsmArch::X86_64 => Some(('e', "eax", 32).into()), _ => None, }, Self::reg_byte => None, Self::xmm_reg => None, Self::ymm_reg => match ty.size().bits() { 256 => None, - _ => Some(('x', "xmm0")), + _ => Some(('x', "xmm0", 128).into()), }, Self::zmm_reg => match ty.size().bits() { 512 => None, - 256 => Some(('y', "ymm0")), - _ => Some(('x', "xmm0")), + 256 => Some(('y', "ymm0", 256).into()), + _ => Some(('x', "xmm0", 128).into()), }, Self::kreg | Self::kreg0 => None, Self::mmx_reg | Self::x87_reg => None, @@ -86,19 +82,19 @@ impl X86InlineAsmRegClass { } } - pub fn default_modifier(self, arch: InlineAsmArch) -> Option<(char, &'static str)> { + pub fn default_modifier(self, arch: InlineAsmArch) -> Option { match self { Self::reg | Self::reg_abcd => { if arch == InlineAsmArch::X86_64 { - Some(('r', "rax")) + Some(('r', "rax", 64).into()) } else { - Some(('e', "eax")) + Some(('e', "eax", 32).into()) } } Self::reg_byte => None, - Self::xmm_reg => Some(('x', "xmm0")), - Self::ymm_reg => Some(('y', "ymm0")), - Self::zmm_reg => Some(('z', "zmm0")), + Self::xmm_reg => Some(('x', "xmm0", 128).into()), + Self::ymm_reg => Some(('y', "ymm0", 256).into()), + Self::zmm_reg => Some(('z', "zmm0", 512).into()), Self::kreg | Self::kreg0 => None, Self::mmx_reg | Self::x87_reg => None, Self::tmm_reg => None, From 1bde8281415034fd76a031c5e939251ff12ea60f Mon Sep 17 00:00:00 2001 From: Veera Date: Wed, 13 Mar 2024 19:20:49 -0400 Subject: [PATCH 03/54] Improve style --- compiler/rustc_target/src/asm/mod.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/compiler/rustc_target/src/asm/mod.rs b/compiler/rustc_target/src/asm/mod.rs index bfb6ae0b2d9d2..2e04dca98c57b 100644 --- a/compiler/rustc_target/src/asm/mod.rs +++ b/compiler/rustc_target/src/asm/mod.rs @@ -13,8 +13,8 @@ pub struct ModifierInfo { } impl From<(char, &'static str, u64)> for ModifierInfo { - fn from(value: (char, &'static str, u64)) -> Self { - Self { modifier: value.0, result: value.1, size: value.2 } + fn from((modifier, result, size): (char, &'static str, u64)) -> Self { + Self { modifier, result, size } } } From a2497a96792b9fc97c93312b363174aba8f4dcc9 Mon Sep 17 00:00:00 2001 From: Ayush Singh Date: Sat, 27 Jan 2024 16:47:09 +0530 Subject: [PATCH 04/54] Expand sys/os for UEFI - Implement current_exe() - Cache device_path_to_text protocol Signed-off-by: Ayush Singh --- library/std/src/sys/pal/uefi/helpers.rs | 83 ++++++++++++++++++++++--- library/std/src/sys/pal/uefi/os.rs | 8 ++- 2 files changed, 81 insertions(+), 10 deletions(-) diff --git a/library/std/src/sys/pal/uefi/helpers.rs b/library/std/src/sys/pal/uefi/helpers.rs index 9837cc89f2d39..a960e1c10d2fd 100644 --- a/library/std/src/sys/pal/uefi/helpers.rs +++ b/library/std/src/sys/pal/uefi/helpers.rs @@ -10,14 +10,16 @@ //! - More information about protocols can be found [here](https://edk2-docs.gitbook.io/edk-ii-uefi-driver-writer-s-guide/3_foundation/36_protocols_and_handles) use r_efi::efi::{self, Guid}; +use r_efi::protocols::{device_path, device_path_to_text}; +use crate::ffi::OsString; +use crate::io::{self, const_io_error}; use crate::mem::{size_of, MaybeUninit}; -use crate::os::uefi; +use crate::os::uefi::{self, env::boot_services, ffi::OsStringExt}; use crate::ptr::NonNull; -use crate::{ - io::{self, const_io_error}, - os::uefi::env::boot_services, -}; +use crate::slice; +use crate::sync::atomic::{AtomicPtr, Ordering}; +use crate::sys_common::wstr::WStrUnits; const BOOT_SERVICES_UNAVAILABLE: io::Error = const_io_error!(io::ErrorKind::Other, "Boot Services are no longer available"); @@ -142,7 +144,72 @@ pub(crate) unsafe fn close_event(evt: NonNull) -> io::Result /// Get the Protocol for current system handle. /// Note: Some protocols need to be manually freed. It is the callers responsibility to do so. -pub(crate) fn image_handle_protocol(protocol_guid: Guid) -> Option> { - let system_handle = uefi::env::try_image_handle()?; - open_protocol(system_handle, protocol_guid).ok() +pub(crate) fn image_handle_protocol(protocol_guid: Guid) -> io::Result> { + let system_handle = uefi::env::try_image_handle().ok_or(io::const_io_error!( + io::ErrorKind::NotFound, + "Protocol not found in Image handle" + ))?; + open_protocol(system_handle, protocol_guid) +} + +pub(crate) fn device_path_to_text(path: NonNull) -> io::Result { + fn path_to_text( + protocol: NonNull, + path: NonNull, + ) -> io::Result { + let path_ptr: *mut r_efi::efi::Char16 = unsafe { + ((*protocol.as_ptr()).convert_device_path_to_text)( + path.as_ptr(), + // DisplayOnly + r_efi::efi::Boolean::FALSE, + // AllowShortcuts + r_efi::efi::Boolean::FALSE, + ) + }; + + // SAFETY: `convert_device_path_to_text` returns a pointer to a null-terminated UTF-16 + // string, and that string cannot be deallocated prior to dropping the `WStrUnits`, so + // it's safe for `WStrUnits` to use. + let path_len = unsafe { + WStrUnits::new(path_ptr) + .ok_or(io::const_io_error!(io::ErrorKind::InvalidData, "Invalid path"))? + .count() + }; + + let path = OsString::from_wide(unsafe { slice::from_raw_parts(path_ptr.cast(), path_len) }); + + if let Some(boot_services) = crate::os::uefi::env::boot_services() { + let boot_services: NonNull = boot_services.cast(); + unsafe { + ((*boot_services.as_ptr()).free_pool)(path_ptr.cast()); + } + } + + Ok(path) + } + + static LAST_VALID_HANDLE: AtomicPtr = + AtomicPtr::new(crate::ptr::null_mut()); + + if let Some(handle) = NonNull::new(LAST_VALID_HANDLE.load(Ordering::Acquire)) { + if let Ok(protocol) = open_protocol::( + handle, + device_path_to_text::PROTOCOL_GUID, + ) { + return path_to_text(protocol, path); + } + } + + let device_path_to_text_handles = locate_handles(device_path_to_text::PROTOCOL_GUID)?; + for handle in device_path_to_text_handles { + if let Ok(protocol) = open_protocol::( + handle, + device_path_to_text::PROTOCOL_GUID, + ) { + LAST_VALID_HANDLE.store(handle.as_ptr(), Ordering::Release); + return path_to_text(protocol, path); + } + } + + Err(io::const_io_error!(io::ErrorKind::NotFound, "No device path to text protocol found")) } diff --git a/library/std/src/sys/pal/uefi/os.rs b/library/std/src/sys/pal/uefi/os.rs index e6693db68e641..58838c5876ebd 100644 --- a/library/std/src/sys/pal/uefi/os.rs +++ b/library/std/src/sys/pal/uefi/os.rs @@ -1,4 +1,4 @@ -use super::{unsupported, RawOsError}; +use super::{helpers, unsupported, RawOsError}; use crate::error::Error as StdError; use crate::ffi::{OsStr, OsString}; use crate::fmt; @@ -7,6 +7,7 @@ use crate::marker::PhantomData; use crate::os::uefi; use crate::path::{self, PathBuf}; use crate::ptr::NonNull; +use r_efi::efi::protocols::{device_path, loaded_image_device_path}; use r_efi::efi::Status; pub fn errno() -> RawOsError { @@ -164,7 +165,10 @@ impl fmt::Display for JoinPathsError { impl StdError for JoinPathsError {} pub fn current_exe() -> io::Result { - unsupported() + let protocol = helpers::image_handle_protocol::( + loaded_image_device_path::PROTOCOL_GUID, + )?; + helpers::device_path_to_text(protocol).map(PathBuf::from) } pub struct Env(!); From 9d66b1b202676b166a86ec02e764325381ea4d27 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Sun, 17 Mar 2024 11:45:07 -0700 Subject: [PATCH 05/54] ci: Build gccjit from a git archive A full `git clone` of GCC includes quite a lot of history, and it's completely unnecessary for building it in CI. We can use a GitHub archive URL to get a simple tarball that is much faster to download. Also, the `gcc-build` directory can be removed after install to reduce the image size even further. --- .../dist-x86_64-linux/build-gccjit.sh | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh b/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh index b22d60f2b1d10..e2aaed4fbfb3f 100755 --- a/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh +++ b/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh @@ -1,5 +1,10 @@ #!/usr/bin/env bash +GIT_REPO="https://github.com/antoyo/gcc" + +# This commit hash needs to be updated to use a more recent gcc fork version. +GIT_COMMIT="78dc50f0e50e6cd1433149520bd512a4e0eaa1bc" + set -ex cd $1 @@ -7,13 +12,11 @@ cd $1 source shared.sh # Setting up folders for GCC -git clone https://github.com/antoyo/gcc gcc-src -cd gcc-src -# This commit hash needs to be updated to use a more recent gcc fork version. -git checkout 78dc50f0e50e6cd1433149520bd512a4e0eaa1bc +curl -L "$GIT_REPO/archive/$GIT_COMMIT.tar.gz" | + tar -xz --transform "s/gcc-$GIT_COMMIT/gcc-src/" -mkdir ../gcc-build ../gcc-install -cd ../gcc-build +mkdir gcc-build gcc-install +cd gcc-build # Building GCC. hide_output \ @@ -28,6 +31,7 @@ hide_output \ hide_output make -j$(nproc) hide_output make install -rm -rf ../gcc-src +cd .. +rm -rf gcc-src gcc-build ln -s /scripts/gcc-install/lib/libgccjit.so /usr/lib/x86_64-linux-gnu/libgccjit.so ln -s /scripts/gcc-install/lib/libgccjit.so /usr/lib/x86_64-linux-gnu/libgccjit.so.0 From 7936e18213941c903f02bc84720ac535393a0328 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Sun, 17 Mar 2024 13:08:06 -0700 Subject: [PATCH 06/54] Use the rust-lang/gcc repo directly Co-authored-by: Urgau <3616612+Urgau@users.noreply.github.com> --- src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh b/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh index e2aaed4fbfb3f..200823848face 100755 --- a/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh +++ b/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh @@ -1,6 +1,6 @@ #!/usr/bin/env bash -GIT_REPO="https://github.com/antoyo/gcc" +GIT_REPO="https://github.com/rust-lang/gcc" # This commit hash needs to be updated to use a more recent gcc fork version. GIT_COMMIT="78dc50f0e50e6cd1433149520bd512a4e0eaa1bc" From f512f9e94903b81030672678592aff44ae777e20 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Sun, 17 Mar 2024 13:10:49 -0700 Subject: [PATCH 07/54] Use `pushd` and `popd` Co-authored-by: Urgau <3616612+Urgau@users.noreply.github.com> --- src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh b/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh index 200823848face..5bc6f5cc2169b 100755 --- a/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh +++ b/src/ci/docker/host-x86_64/dist-x86_64-linux/build-gccjit.sh @@ -16,7 +16,7 @@ curl -L "$GIT_REPO/archive/$GIT_COMMIT.tar.gz" | tar -xz --transform "s/gcc-$GIT_COMMIT/gcc-src/" mkdir gcc-build gcc-install -cd gcc-build +pushd gcc-build # Building GCC. hide_output \ @@ -31,7 +31,7 @@ hide_output \ hide_output make -j$(nproc) hide_output make install -cd .. +popd rm -rf gcc-src gcc-build ln -s /scripts/gcc-install/lib/libgccjit.so /usr/lib/x86_64-linux-gnu/libgccjit.so ln -s /scripts/gcc-install/lib/libgccjit.so /usr/lib/x86_64-linux-gnu/libgccjit.so.0 From d49d136b3a0e9749e4aa517b7aa6490752444cf7 Mon Sep 17 00:00:00 2001 From: Yacin Tmimi Date: Tue, 19 Mar 2024 12:58:23 -0400 Subject: [PATCH 08/54] conditionally ignore fatal diagnostic in the SilentEmitter This change is primarily meant to allow rustfmt to ignore all diagnostics when using the `SilentEmitter`. Back in PR 121301 the `SilentEmitter` was shared between rustc and rustfmt. This changed rustfmt's behavior from ignoring all diagnostic to emitting fatal diagnostics. These changes allow rustfmt to maintain it's previous behaviour when using the SilentEmitter, while allowing rustc code to still emit fatal diagnostics. --- compiler/rustc_errors/src/emitter.rs | 3 ++- compiler/rustc_errors/src/lib.rs | 8 +++++++- compiler/rustc_interface/src/interface.rs | 2 ++ compiler/rustc_session/src/parse.rs | 7 ++++++- src/tools/rustfmt/src/parse/session.rs | 3 ++- 5 files changed, 19 insertions(+), 4 deletions(-) diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs index 4f033e3fefa0f..f5d275fc45227 100644 --- a/compiler/rustc_errors/src/emitter.rs +++ b/compiler/rustc_errors/src/emitter.rs @@ -541,6 +541,7 @@ pub struct SilentEmitter { pub fallback_bundle: LazyFallbackBundle, pub fatal_dcx: DiagCtxt, pub fatal_note: Option, + pub emit_fatal_diagnostic: bool, } impl Translate for SilentEmitter { @@ -561,7 +562,7 @@ impl Emitter for SilentEmitter { } fn emit_diagnostic(&mut self, mut diag: DiagInner) { - if diag.level == Level::Fatal { + if self.emit_fatal_diagnostic && diag.level == Level::Fatal { if let Some(fatal_note) = &self.fatal_note { diag.sub(Level::Note, fatal_note.clone(), MultiSpan::new()); } diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index 723f13dbe8d31..ff5e1948db880 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -613,12 +613,18 @@ impl DiagCtxt { Self { inner: Lock::new(DiagCtxtInner::new(emitter)) } } - pub fn make_silent(&mut self, fallback_bundle: LazyFallbackBundle, fatal_note: Option) { + pub fn make_silent( + &mut self, + fallback_bundle: LazyFallbackBundle, + fatal_note: Option, + emit_fatal_diagnostic: bool, + ) { self.wrap_emitter(|old_dcx| { Box::new(emitter::SilentEmitter { fallback_bundle, fatal_dcx: DiagCtxt { inner: Lock::new(old_dcx) }, fatal_note, + emit_fatal_diagnostic, }) }); } diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs index 1a82e6c6910ae..edf52fe8c347d 100644 --- a/compiler/rustc_interface/src/interface.rs +++ b/compiler/rustc_interface/src/interface.rs @@ -48,6 +48,7 @@ pub(crate) fn parse_cfg(dcx: &DiagCtxt, cfgs: Vec) -> Cfg { let psess = ParseSess::with_silent_emitter( vec![crate::DEFAULT_LOCALE_RESOURCE, rustc_parse::DEFAULT_LOCALE_RESOURCE], format!("this error occurred on the command line: `--cfg={s}`"), + true, ); let filename = FileName::cfg_spec_source_code(&s); @@ -111,6 +112,7 @@ pub(crate) fn parse_check_cfg(dcx: &DiagCtxt, specs: Vec) -> CheckCfg { let psess = ParseSess::with_silent_emitter( vec![crate::DEFAULT_LOCALE_RESOURCE, rustc_parse::DEFAULT_LOCALE_RESOURCE], format!("this error occurred on the command line: `--check-cfg={s}`"), + true, ); let filename = FileName::cfg_spec_source_code(&s); diff --git a/compiler/rustc_session/src/parse.rs b/compiler/rustc_session/src/parse.rs index 5434bbe0b98a2..f6053f43fbd19 100644 --- a/compiler/rustc_session/src/parse.rs +++ b/compiler/rustc_session/src/parse.rs @@ -269,7 +269,11 @@ impl ParseSess { } } - pub fn with_silent_emitter(locale_resources: Vec<&'static str>, fatal_note: String) -> Self { + pub fn with_silent_emitter( + locale_resources: Vec<&'static str>, + fatal_note: String, + emit_fatal_diagnostic: bool, + ) -> Self { let fallback_bundle = fallback_fluent_bundle(locale_resources, false); let sm = Lrc::new(SourceMap::new(FilePathMapping::empty())); let emitter = Box::new(HumanEmitter::new( @@ -281,6 +285,7 @@ impl ParseSess { fallback_bundle, fatal_dcx, fatal_note: Some(fatal_note), + emit_fatal_diagnostic, })) .disable_warnings(); ParseSess::with_dcx(dcx, sm) diff --git a/src/tools/rustfmt/src/parse/session.rs b/src/tools/rustfmt/src/parse/session.rs index cb46e65999df6..1a39d212386bd 100644 --- a/src/tools/rustfmt/src/parse/session.rs +++ b/src/tools/rustfmt/src/parse/session.rs @@ -121,6 +121,7 @@ fn default_dcx( fallback_bundle, fatal_dcx: DiagCtxt::new(emitter), fatal_note: None, + emit_fatal_diagnostic: false, }) } else { emitter @@ -209,7 +210,7 @@ impl ParseSess { rustc_driver::DEFAULT_LOCALE_RESOURCES.to_vec(), false, ); - self.raw_psess.dcx.make_silent(fallback_bundle, None); + self.raw_psess.dcx.make_silent(fallback_bundle, None, false); } pub(crate) fn span_to_filename(&self, span: Span) -> FileName { From 92325a95b3830e693e11c3575254d133f6dd7c5b Mon Sep 17 00:00:00 2001 From: h1467792822 <1467792822@qq.com> Date: Tue, 19 Mar 2024 19:50:07 +0800 Subject: [PATCH 09/54] Fixed the `private-dependency` bug: If the directly dependent crate is loaded last and is not configured with `--extern`, it may be incorrectly set to `private-dependency` --- compiler/rustc_metadata/src/creader.rs | 27 +++++++++++-------- .../ui/privacy/pub-priv-dep/auxiliary/bar.rs | 6 +++++ .../ui/privacy/pub-priv-dep/auxiliary/foo.rs | 2 ++ .../pub-priv-dep/priv-dep-issue-122756.rs | 12 +++++++++ 4 files changed, 36 insertions(+), 11 deletions(-) create mode 100644 tests/ui/privacy/pub-priv-dep/auxiliary/bar.rs create mode 100644 tests/ui/privacy/pub-priv-dep/auxiliary/foo.rs create mode 100644 tests/ui/privacy/pub-priv-dep/priv-dep-issue-122756.rs diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index 72757d90e4238..f61248aa731c1 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -388,6 +388,15 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { None } + // The `dependency` type is determined by the command line arguments(`--extern`) and + // `private_dep`. However, sometimes the directly dependent crate is not specified by + // `--extern`, in this case, `private-dep` is none during loading. This is equivalent to the + // scenario where the command parameter is set to `public-dependency` + fn is_private_dep(&self, name: &str, private_dep: Option) -> bool { + self.sess.opts.externs.get(name).map_or(private_dep.unwrap_or(false), |e| e.is_private_dep) + && private_dep.unwrap_or(true) + } + fn register_crate( &mut self, host_lib: Option, @@ -402,14 +411,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { let Library { source, metadata } = lib; let crate_root = metadata.get_root(); let host_hash = host_lib.as_ref().map(|lib| lib.metadata.get_root().hash()); - - let private_dep = self - .sess - .opts - .externs - .get(name.as_str()) - .map_or(private_dep.unwrap_or(false), |e| e.is_private_dep) - && private_dep.unwrap_or(true); + let private_dep = self.is_private_dep(name.as_str(), private_dep); // Claim this crate number and cache it let cnum = self.cstore.intern_stable_crate_id(&crate_root)?; @@ -599,14 +601,17 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { match result { (LoadResult::Previous(cnum), None) => { + // When `private_dep` is none, it indicates the directly dependent crate. If it is + // not specified by `--extern` on command line parameters, it may be + // `private-dependency` when `register_crate` is called for the first time. Then it must be updated to + // `public-dependency` here. + let private_dep = self.is_private_dep(name.as_str(), private_dep); let data = self.cstore.get_crate_data_mut(cnum); if data.is_proc_macro_crate() { dep_kind = CrateDepKind::MacrosOnly; } data.set_dep_kind(cmp::max(data.dep_kind(), dep_kind)); - if let Some(private_dep) = private_dep { - data.update_and_private_dep(private_dep); - } + data.update_and_private_dep(private_dep); Ok(cnum) } (LoadResult::Loaded(library), host_library) => { diff --git a/tests/ui/privacy/pub-priv-dep/auxiliary/bar.rs b/tests/ui/privacy/pub-priv-dep/auxiliary/bar.rs new file mode 100644 index 0000000000000..58297c926932b --- /dev/null +++ b/tests/ui/privacy/pub-priv-dep/auxiliary/bar.rs @@ -0,0 +1,6 @@ +//@ aux-crate:priv:foo=foo.rs +//@ compile-flags: -Zunstable-options + +#![crate_type = "rlib"] +extern crate foo; +pub struct Bar(pub i32); diff --git a/tests/ui/privacy/pub-priv-dep/auxiliary/foo.rs b/tests/ui/privacy/pub-priv-dep/auxiliary/foo.rs new file mode 100644 index 0000000000000..6fd950619e6d8 --- /dev/null +++ b/tests/ui/privacy/pub-priv-dep/auxiliary/foo.rs @@ -0,0 +1,2 @@ +#![crate_type = "rlib"] +pub struct Foo(pub i32); diff --git a/tests/ui/privacy/pub-priv-dep/priv-dep-issue-122756.rs b/tests/ui/privacy/pub-priv-dep/priv-dep-issue-122756.rs new file mode 100644 index 0000000000000..d7ade7f0e96c5 --- /dev/null +++ b/tests/ui/privacy/pub-priv-dep/priv-dep-issue-122756.rs @@ -0,0 +1,12 @@ +//@ aux-build: bar.rs +//@ aux-build: foo.rs +//@ build-pass + +#![deny(exported_private_dependencies)] + +// Ensure the libbar.rlib is loaded first. If the command line parameter `--extern foo` does not +// exist, previus version would fail to compile +#![crate_type = "rlib"] +extern crate bar; +extern crate foo; +pub fn baz() -> (Option, Option) { (None, None) } From 36728f1cdd6a8c379393372259cc280df7251913 Mon Sep 17 00:00:00 2001 From: Oli Scherer Date: Tue, 19 Mar 2024 10:17:15 +0000 Subject: [PATCH 10/54] Replace `mir_built` query with a hook and use mir_const everywhere instead --- .../src/persist/dirty_clean.rs | 2 +- compiler/rustc_middle/src/hooks/mod.rs | 6 ++ compiler/rustc_middle/src/query/mod.rs | 7 -- .../rustc_mir_build/src/build/custom/mod.rs | 2 +- compiler/rustc_mir_build/src/build/mod.rs | 11 +--- .../rustc_mir_build/src/check_unsafety.rs | 4 +- compiler/rustc_mir_build/src/lib.rs | 4 +- .../rustc_mir_transform/src/check_unsafety.rs | 4 +- .../src/ffi_unwind_calls.rs | 2 +- compiler/rustc_mir_transform/src/lib.rs | 7 +- .../binding/issue-53114-safety-checks.stderr | 64 +++++++++---------- tests/ui/coroutine/clone-rpit.next.stderr | 7 +- ...tiple_definitions_attribute_merging.stderr | 2 +- .../proc_macro_generated_packed.stderr | 2 +- .../self-in-enum-definition.stderr | 5 -- 15 files changed, 56 insertions(+), 73 deletions(-) diff --git a/compiler/rustc_incremental/src/persist/dirty_clean.rs b/compiler/rustc_incremental/src/persist/dirty_clean.rs index 24512dea93999..90edc8a5d0038 100644 --- a/compiler/rustc_incremental/src/persist/dirty_clean.rs +++ b/compiler/rustc_incremental/src/persist/dirty_clean.rs @@ -65,7 +65,7 @@ const BASE_HIR: &[&str] = &[ const BASE_IMPL: &[&str] = &[label_strs::associated_item_def_ids, label_strs::generics_of, label_strs::impl_trait_header]; -/// DepNodes for mir_built/Optimized, which is relevant in "executable" +/// DepNodes for exported mir bodies, which is relevant in "executable" /// code, i.e., functions+methods const BASE_MIR: &[&str] = &[label_strs::optimized_mir, label_strs::promoted_mir]; diff --git a/compiler/rustc_middle/src/hooks/mod.rs b/compiler/rustc_middle/src/hooks/mod.rs index b984df3646e61..33447dfed93ed 100644 --- a/compiler/rustc_middle/src/hooks/mod.rs +++ b/compiler/rustc_middle/src/hooks/mod.rs @@ -77,4 +77,10 @@ declare_hooks! { /// /// (Eligible functions might nevertheless be skipped for other reasons.) hook is_eligible_for_coverage(key: LocalDefId) -> bool; + + /// Create the MIR for a given `DefId` - this includes + /// unreachable code. + /// You do not want to call this yourself, instead use the cached version + /// via `mir_const` + hook build_mir(key: LocalDefId) -> mir::Body<'tcx>; } diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index 9f0d2a89e6d1c..5e9432296ea4a 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -485,19 +485,12 @@ rustc_queries! { separate_provide_extern } - /// Fetch the MIR for a given `DefId` right after it's built - this includes - /// unreachable code. - query mir_built(key: LocalDefId) -> &'tcx Steal> { - desc { |tcx| "building MIR for `{}`", tcx.def_path_str(key) } - } - /// Fetch the MIR for a given `DefId` up till the point where it is /// ready for const qualification. /// /// See the README for the `mir` module for details. query mir_const(key: LocalDefId) -> &'tcx Steal> { desc { |tcx| "preparing `{}` for borrow checking", tcx.def_path_str(key) } - no_hash } /// Try to build an abstract representation of the given constant. diff --git a/compiler/rustc_mir_build/src/build/custom/mod.rs b/compiler/rustc_mir_build/src/build/custom/mod.rs index 288b787798b49..edd72c2a10fa4 100644 --- a/compiler/rustc_mir_build/src/build/custom/mod.rs +++ b/compiler/rustc_mir_build/src/build/custom/mod.rs @@ -6,7 +6,7 @@ //! present, and if so we branch off into this module, which implements the attribute by //! implementing a custom lowering from THIR to MIR. //! -//! The result of this lowering is returned "normally" from the `mir_built` query, with the only +//! The result of this lowering is returned "normally" from the `build_mir` hook, with the only //! notable difference being that the `injected` field in the body is set. Various components of the //! MIR pipeline, like borrowck and the pass manager will then consult this field (via //! `body.should_skip()`) to skip the parts of the MIR pipeline that precede the MIR phase the user diff --git a/compiler/rustc_mir_build/src/build/mod.rs b/compiler/rustc_mir_build/src/build/mod.rs index 411119b521bcd..dcd4a40898640 100644 --- a/compiler/rustc_mir_build/src/build/mod.rs +++ b/compiler/rustc_mir_build/src/build/mod.rs @@ -18,6 +18,7 @@ use rustc_middle::hir::place::PlaceBase as HirPlaceBase; use rustc_middle::middle::region; use rustc_middle::mir::interpret::Scalar; use rustc_middle::mir::*; +use rustc_middle::query::TyCtxtAt; use rustc_middle::thir::{ self, BindingMode, ExprId, LintLevel, LocalVarId, Param, ParamId, PatKind, Thir, }; @@ -30,13 +31,6 @@ use rustc_target::spec::abi::Abi; use super::lints; -pub(crate) fn mir_built( - tcx: TyCtxt<'_>, - def: LocalDefId, -) -> &rustc_data_structures::steal::Steal> { - tcx.alloc_steal_mir(mir_build(tcx, def)) -} - pub(crate) fn closure_saved_names_of_captured_variables<'tcx>( tcx: TyCtxt<'tcx>, def_id: LocalDefId, @@ -54,7 +48,8 @@ pub(crate) fn closure_saved_names_of_captured_variables<'tcx>( } /// Construct the MIR for a given `DefId`. -fn mir_build<'tcx>(tcx: TyCtxt<'tcx>, def: LocalDefId) -> Body<'tcx> { +pub(crate) fn mir_build<'tcx>(tcx: TyCtxtAt<'tcx>, def: LocalDefId) -> Body<'tcx> { + let tcx = tcx.tcx; tcx.ensure_with_value().thir_abstract_const(def); if let Err(e) = tcx.check_match(def) { return construct_error(tcx, def, e); diff --git a/compiler/rustc_mir_build/src/check_unsafety.rs b/compiler/rustc_mir_build/src/check_unsafety.rs index 1ce8da162bfa5..9ccf71744a155 100644 --- a/compiler/rustc_mir_build/src/check_unsafety.rs +++ b/compiler/rustc_mir_build/src/check_unsafety.rs @@ -139,7 +139,7 @@ impl<'tcx> UnsafetyVisitor<'_, 'tcx> { fn visit_inner_body(&mut self, def: LocalDefId) { if let Ok((inner_thir, expr)) = self.tcx.thir_body(def) { // Runs all other queries that depend on THIR. - self.tcx.ensure_with_value().mir_built(def); + self.tcx.ensure_with_value().mir_const(def); let inner_thir = &inner_thir.steal(); let hir_context = self.tcx.local_def_id_to_hir_id(def); let safety_context = mem::replace(&mut self.safety_context, SafetyContext::Safe); @@ -921,7 +921,7 @@ pub fn check_unsafety(tcx: TyCtxt<'_>, def: LocalDefId) { let Ok((thir, expr)) = tcx.thir_body(def) else { return }; // Runs all other queries that depend on THIR. - tcx.ensure_with_value().mir_built(def); + tcx.ensure_with_value().mir_const(def); let thir = &thir.steal(); // If `thir` is empty, a type error occurred, skip this body. if thir.exprs.is_empty() { diff --git a/compiler/rustc_mir_build/src/lib.rs b/compiler/rustc_mir_build/src/lib.rs index b9a20cb21e968..25bd43de88fee 100644 --- a/compiler/rustc_mir_build/src/lib.rs +++ b/compiler/rustc_mir_build/src/lib.rs @@ -23,14 +23,14 @@ mod errors; pub mod lints; mod thir; -use rustc_middle::query::Providers; +use rustc_middle::util::Providers; rustc_fluent_macro::fluent_messages! { "../messages.ftl" } pub fn provide(providers: &mut Providers) { providers.check_match = thir::pattern::check_match; providers.lit_to_const = thir::constant::lit_to_const; - providers.mir_built = build::mir_built; + providers.hooks.build_mir = build::mir_build; providers.closure_saved_names_of_captured_variables = build::closure_saved_names_of_captured_variables; providers.check_unsafety = check_unsafety::check_unsafety; diff --git a/compiler/rustc_mir_transform/src/check_unsafety.rs b/compiler/rustc_mir_transform/src/check_unsafety.rs index a0c3de3af5862..bf463021d4bb9 100644 --- a/compiler/rustc_mir_transform/src/check_unsafety.rs +++ b/compiler/rustc_mir_transform/src/check_unsafety.rs @@ -497,8 +497,8 @@ fn mir_unsafety_check_result(tcx: TyCtxt<'_>, def: LocalDefId) -> &UnsafetyCheck debug!("unsafety_violations({:?})", def); // N.B., this borrow is valid because all the consumers of - // `mir_built` force this. - let body = &tcx.mir_built(def).borrow(); + // `mir_const` force this. + let body = &tcx.mir_const(def).borrow(); if body.is_custom_mir() || body.tainted_by_errors.is_some() { return tcx.arena.alloc(UnsafetyCheckResult { diff --git a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs index 0970c4de19fde..16a417d9a38ee 100644 --- a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs +++ b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs @@ -53,7 +53,7 @@ fn has_ffi_unwind_calls(tcx: TyCtxt<'_>, local_def_id: LocalDefId) -> bool { return false; } - let body = &*tcx.mir_built(local_def_id).borrow(); + let body = &*tcx.mir_const(local_def_id).borrow(); let body_ty = tcx.type_of(def_id).skip_binder(); let body_abi = match body_ty.kind() { diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs index afe228be12797..9d6463b34ad38 100644 --- a/compiler/rustc_mir_transform/src/lib.rs +++ b/compiler/rustc_mir_transform/src/lib.rs @@ -288,10 +288,7 @@ fn mir_const(tcx: TyCtxt<'_>, def: LocalDefId) -> &Steal> { tcx.ensure_with_value().mir_unsafety_check_result(def); } - // has_ffi_unwind_calls query uses the raw mir, so make sure it is run. - tcx.ensure_with_value().has_ffi_unwind_calls(def); - - let mut body = tcx.mir_built(def).steal(); + let mut body = tcx.build_mir(def); pass_manager::dump_mir_for_phase_change(tcx, &body); @@ -339,6 +336,8 @@ fn mir_promoted( | DefKind::AnonConst => tcx.mir_const_qualif(def), _ => ConstQualifs::default(), }; + // has_ffi_unwind_calls query uses the raw mir, so make sure it is run. + tcx.ensure_with_value().has_ffi_unwind_calls(def); let mut body = tcx.mir_const(def).steal(); if let Some(error_reported) = const_qualifs.tainted_by_errors { body.tainted_by_errors = Some(error_reported); diff --git a/tests/ui/binding/issue-53114-safety-checks.stderr b/tests/ui/binding/issue-53114-safety-checks.stderr index b7d805d91718b..9d909e915c21b 100644 --- a/tests/ui/binding/issue-53114-safety-checks.stderr +++ b/tests/ui/binding/issue-53114-safety-checks.stderr @@ -1,3 +1,23 @@ +error[E0793]: reference to packed field is unaligned + --> $DIR/issue-53114-safety-checks.rs:23:13 + | +LL | let _ = &p.b; + | ^^^^ + | + = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses + = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) + = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers) + +error[E0793]: reference to packed field is unaligned + --> $DIR/issue-53114-safety-checks.rs:28:17 + | +LL | let (_,) = (&p.b,); + | ^^^^ + | + = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses + = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) + = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers) + error[E0133]: access to union field is unsafe and requires unsafe function or block --> $DIR/issue-53114-safety-checks.rs:24:13 | @@ -31,20 +51,20 @@ LL | let (_,) = (&u2.a,); = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior error[E0793]: reference to packed field is unaligned - --> $DIR/issue-53114-safety-checks.rs:23:13 + --> $DIR/issue-53114-safety-checks.rs:37:16 | -LL | let _ = &p.b; - | ^^^^ +LL | let _: _ = &p.b; + | ^^^^ | = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers) error[E0793]: reference to packed field is unaligned - --> $DIR/issue-53114-safety-checks.rs:28:17 + --> $DIR/issue-53114-safety-checks.rs:42:20 | -LL | let (_,) = (&p.b,); - | ^^^^ +LL | let (_,): _ = (&p.b,); + | ^^^^ | = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) @@ -83,20 +103,20 @@ LL | let (_,): _ = (&u2.a,); = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior error[E0793]: reference to packed field is unaligned - --> $DIR/issue-53114-safety-checks.rs:37:16 + --> $DIR/issue-53114-safety-checks.rs:51:11 | -LL | let _: _ = &p.b; - | ^^^^ +LL | match &p.b { _ => { } } + | ^^^^ | = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers) error[E0793]: reference to packed field is unaligned - --> $DIR/issue-53114-safety-checks.rs:42:20 + --> $DIR/issue-53114-safety-checks.rs:56:12 | -LL | let (_,): _ = (&p.b,); - | ^^^^ +LL | match (&p.b,) { (_,) => { } } + | ^^^^ | = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) @@ -134,26 +154,6 @@ LL | match (&u2.a,) { (_,) => { } } | = note: the field may not be properly initialized: using uninitialized data will cause undefined behavior -error[E0793]: reference to packed field is unaligned - --> $DIR/issue-53114-safety-checks.rs:51:11 - | -LL | match &p.b { _ => { } } - | ^^^^ - | - = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses - = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) - = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers) - -error[E0793]: reference to packed field is unaligned - --> $DIR/issue-53114-safety-checks.rs:56:12 - | -LL | match (&p.b,) { (_,) => { } } - | ^^^^ - | - = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses - = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) - = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers) - error: aborting due to 18 previous errors Some errors have detailed explanations: E0133, E0793. diff --git a/tests/ui/coroutine/clone-rpit.next.stderr b/tests/ui/coroutine/clone-rpit.next.stderr index 02d3390496aee..f1634324d3fc5 100644 --- a/tests/ui/coroutine/clone-rpit.next.stderr +++ b/tests/ui/coroutine/clone-rpit.next.stderr @@ -14,17 +14,12 @@ note: ...which requires promoting constants in MIR for `foo::{closure#0}`... | LL | move |_: ()| { | ^^^^^^^^^^^^ -note: ...which requires preparing `foo::{closure#0}` for borrow checking... - --> $DIR/clone-rpit.rs:14:5 - | -LL | move |_: ()| { - | ^^^^^^^^^^^^ note: ...which requires checking if `foo::{closure#0}` contains FFI-unwind calls... --> $DIR/clone-rpit.rs:14:5 | LL | move |_: ()| { | ^^^^^^^^^^^^ -note: ...which requires building MIR for `foo::{closure#0}`... +note: ...which requires preparing `foo::{closure#0}` for borrow checking... --> $DIR/clone-rpit.rs:14:5 | LL | move |_: ()| { diff --git a/tests/ui/resolve/multiple_definitions_attribute_merging.stderr b/tests/ui/resolve/multiple_definitions_attribute_merging.stderr index b2d20af883abb..563db44c946a2 100644 --- a/tests/ui/resolve/multiple_definitions_attribute_merging.stderr +++ b/tests/ui/resolve/multiple_definitions_attribute_merging.stderr @@ -19,7 +19,7 @@ LL | struct Dealigned(u8, T); = Box query stack during panic: #0 [mir_const] preparing `::eq` for borrow checking -#1 [mir_promoted] promoting constants in MIR for `::eq` +#1 [check_unsafety] unsafety-checking `::eq` end of query stack error: aborting due to 2 previous errors diff --git a/tests/ui/resolve/proc_macro_generated_packed.stderr b/tests/ui/resolve/proc_macro_generated_packed.stderr index 507e5867c904b..4c515b9809b24 100644 --- a/tests/ui/resolve/proc_macro_generated_packed.stderr +++ b/tests/ui/resolve/proc_macro_generated_packed.stderr @@ -10,7 +10,7 @@ LL | struct Dealigned(u8, T); = Box query stack during panic: #0 [mir_const] preparing `::eq` for borrow checking -#1 [mir_promoted] promoting constants in MIR for `::eq` +#1 [check_unsafety] unsafety-checking `::eq` end of query stack error: aborting due to 1 previous error diff --git a/tests/ui/type-alias-enum-variants/self-in-enum-definition.stderr b/tests/ui/type-alias-enum-variants/self-in-enum-definition.stderr index df466609a1246..f1e3518aa82eb 100644 --- a/tests/ui/type-alias-enum-variants/self-in-enum-definition.stderr +++ b/tests/ui/type-alias-enum-variants/self-in-enum-definition.stderr @@ -37,11 +37,6 @@ LL | V3 = Self::V1 {} as u8 + 2, note: ...which requires preparing `Alpha::V3::{constant#0}` for borrow checking... --> $DIR/self-in-enum-definition.rs:5:10 | -LL | V3 = Self::V1 {} as u8 + 2, - | ^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires building MIR for `Alpha::V3::{constant#0}`... - --> $DIR/self-in-enum-definition.rs:5:10 - | LL | V3 = Self::V1 {} as u8 + 2, | ^^^^^^^^^^^^^^^^^^^^^ = note: ...which requires computing layout of `Alpha`... From afdcae286049681b43694be6bfdb0f2220710bd2 Mon Sep 17 00:00:00 2001 From: Oli Scherer Date: Wed, 20 Mar 2024 09:05:22 +0000 Subject: [PATCH 11/54] Rename mir_const query to mir_built --- compiler/rustc_middle/src/hooks/mod.rs | 2 +- compiler/rustc_middle/src/query/mod.rs | 2 +- compiler/rustc_mir_build/src/check_unsafety.rs | 4 ++-- compiler/rustc_mir_transform/src/check_unsafety.rs | 4 ++-- compiler/rustc_mir_transform/src/ffi_unwind_calls.rs | 2 +- compiler/rustc_mir_transform/src/lib.rs | 10 +++++----- .../multiple_definitions_attribute_merging.stderr | 2 +- tests/ui/resolve/proc_macro_generated_packed.stderr | 2 +- 8 files changed, 14 insertions(+), 14 deletions(-) diff --git a/compiler/rustc_middle/src/hooks/mod.rs b/compiler/rustc_middle/src/hooks/mod.rs index 33447dfed93ed..aa2cddad0938c 100644 --- a/compiler/rustc_middle/src/hooks/mod.rs +++ b/compiler/rustc_middle/src/hooks/mod.rs @@ -81,6 +81,6 @@ declare_hooks! { /// Create the MIR for a given `DefId` - this includes /// unreachable code. /// You do not want to call this yourself, instead use the cached version - /// via `mir_const` + /// via `mir_built` hook build_mir(key: LocalDefId) -> mir::Body<'tcx>; } diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index 5e9432296ea4a..4bdc0b1e4ca3a 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -489,7 +489,7 @@ rustc_queries! { /// ready for const qualification. /// /// See the README for the `mir` module for details. - query mir_const(key: LocalDefId) -> &'tcx Steal> { + query mir_built(key: LocalDefId) -> &'tcx Steal> { desc { |tcx| "preparing `{}` for borrow checking", tcx.def_path_str(key) } } diff --git a/compiler/rustc_mir_build/src/check_unsafety.rs b/compiler/rustc_mir_build/src/check_unsafety.rs index 9ccf71744a155..1ce8da162bfa5 100644 --- a/compiler/rustc_mir_build/src/check_unsafety.rs +++ b/compiler/rustc_mir_build/src/check_unsafety.rs @@ -139,7 +139,7 @@ impl<'tcx> UnsafetyVisitor<'_, 'tcx> { fn visit_inner_body(&mut self, def: LocalDefId) { if let Ok((inner_thir, expr)) = self.tcx.thir_body(def) { // Runs all other queries that depend on THIR. - self.tcx.ensure_with_value().mir_const(def); + self.tcx.ensure_with_value().mir_built(def); let inner_thir = &inner_thir.steal(); let hir_context = self.tcx.local_def_id_to_hir_id(def); let safety_context = mem::replace(&mut self.safety_context, SafetyContext::Safe); @@ -921,7 +921,7 @@ pub fn check_unsafety(tcx: TyCtxt<'_>, def: LocalDefId) { let Ok((thir, expr)) = tcx.thir_body(def) else { return }; // Runs all other queries that depend on THIR. - tcx.ensure_with_value().mir_const(def); + tcx.ensure_with_value().mir_built(def); let thir = &thir.steal(); // If `thir` is empty, a type error occurred, skip this body. if thir.exprs.is_empty() { diff --git a/compiler/rustc_mir_transform/src/check_unsafety.rs b/compiler/rustc_mir_transform/src/check_unsafety.rs index bf463021d4bb9..a0c3de3af5862 100644 --- a/compiler/rustc_mir_transform/src/check_unsafety.rs +++ b/compiler/rustc_mir_transform/src/check_unsafety.rs @@ -497,8 +497,8 @@ fn mir_unsafety_check_result(tcx: TyCtxt<'_>, def: LocalDefId) -> &UnsafetyCheck debug!("unsafety_violations({:?})", def); // N.B., this borrow is valid because all the consumers of - // `mir_const` force this. - let body = &tcx.mir_const(def).borrow(); + // `mir_built` force this. + let body = &tcx.mir_built(def).borrow(); if body.is_custom_mir() || body.tainted_by_errors.is_some() { return tcx.arena.alloc(UnsafetyCheckResult { diff --git a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs index 16a417d9a38ee..0970c4de19fde 100644 --- a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs +++ b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs @@ -53,7 +53,7 @@ fn has_ffi_unwind_calls(tcx: TyCtxt<'_>, local_def_id: LocalDefId) -> bool { return false; } - let body = &*tcx.mir_const(local_def_id).borrow(); + let body = &*tcx.mir_built(local_def_id).borrow(); let body_ty = tcx.type_of(def_id).skip_binder(); let body_abi = match body_ty.kind() { diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs index 9d6463b34ad38..1636fe2339a93 100644 --- a/compiler/rustc_mir_transform/src/lib.rs +++ b/compiler/rustc_mir_transform/src/lib.rs @@ -127,7 +127,7 @@ pub fn provide(providers: &mut Providers) { cross_crate_inline::provide(providers); providers.queries = query::Providers { mir_keys, - mir_const, + mir_built, mir_const_qualif, mir_promoted, mir_drops_elaborated_and_const_checked, @@ -259,9 +259,9 @@ fn mir_const_qualif(tcx: TyCtxt<'_>, def: LocalDefId) -> ConstQualifs { // N.B., this `borrow()` is guaranteed to be valid (i.e., the value // cannot yet be stolen), because `mir_promoted()`, which steals - // from `mir_const()`, forces this query to execute before + // from `mir_built()`, forces this query to execute before // performing the steal. - let body = &tcx.mir_const(def).borrow(); + let body = &tcx.mir_built(def).borrow(); if body.return_ty().references_error() { // It's possible to reach here without an error being emitted (#121103). @@ -282,7 +282,7 @@ fn mir_const_qualif(tcx: TyCtxt<'_>, def: LocalDefId) -> ConstQualifs { /// Make MIR ready for const evaluation. This is run on all MIR, not just on consts! /// FIXME(oli-obk): it's unclear whether we still need this phase (and its corresponding query). /// We used to have this for pre-miri MIR based const eval. -fn mir_const(tcx: TyCtxt<'_>, def: LocalDefId) -> &Steal> { +fn mir_built(tcx: TyCtxt<'_>, def: LocalDefId) -> &Steal> { // MIR unsafety check uses the raw mir, so make sure it is run. if !tcx.sess.opts.unstable_opts.thir_unsafeck { tcx.ensure_with_value().mir_unsafety_check_result(def); @@ -338,7 +338,7 @@ fn mir_promoted( }; // has_ffi_unwind_calls query uses the raw mir, so make sure it is run. tcx.ensure_with_value().has_ffi_unwind_calls(def); - let mut body = tcx.mir_const(def).steal(); + let mut body = tcx.mir_built(def).steal(); if let Some(error_reported) = const_qualifs.tainted_by_errors { body.tainted_by_errors = Some(error_reported); } diff --git a/tests/ui/resolve/multiple_definitions_attribute_merging.stderr b/tests/ui/resolve/multiple_definitions_attribute_merging.stderr index 563db44c946a2..d0af8cef67698 100644 --- a/tests/ui/resolve/multiple_definitions_attribute_merging.stderr +++ b/tests/ui/resolve/multiple_definitions_attribute_merging.stderr @@ -18,7 +18,7 @@ LL | struct Dealigned(u8, T); | = Box query stack during panic: -#0 [mir_const] preparing `::eq` for borrow checking +#0 [mir_built] preparing `::eq` for borrow checking #1 [check_unsafety] unsafety-checking `::eq` end of query stack error: aborting due to 2 previous errors diff --git a/tests/ui/resolve/proc_macro_generated_packed.stderr b/tests/ui/resolve/proc_macro_generated_packed.stderr index 4c515b9809b24..0f758ece20721 100644 --- a/tests/ui/resolve/proc_macro_generated_packed.stderr +++ b/tests/ui/resolve/proc_macro_generated_packed.stderr @@ -9,7 +9,7 @@ LL | struct Dealigned(u8, T); | = Box query stack during panic: -#0 [mir_const] preparing `::eq` for borrow checking +#0 [mir_built] preparing `::eq` for borrow checking #1 [check_unsafety] unsafety-checking `::eq` end of query stack error: aborting due to 1 previous error From 6201ad9205b3d3fc97b632901d61670f13179ef1 Mon Sep 17 00:00:00 2001 From: Oli Scherer Date: Wed, 20 Mar 2024 09:49:57 +0000 Subject: [PATCH 12/54] Update documentation --- compiler/rustc_middle/src/query/mod.rs | 9 +++++---- compiler/rustc_mir_transform/src/lib.rs | 3 --- tests/ui/coroutine/clone-rpit.next.stderr | 2 +- .../multiple_definitions_attribute_merging.stderr | 2 +- tests/ui/resolve/proc_macro_generated_packed.stderr | 2 +- .../self-in-enum-definition.stderr | 2 +- 6 files changed, 9 insertions(+), 11 deletions(-) diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index 4bdc0b1e4ca3a..e2bfcd366b756 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -485,12 +485,13 @@ rustc_queries! { separate_provide_extern } - /// Fetch the MIR for a given `DefId` up till the point where it is - /// ready for const qualification. + /// Build the MIR for a given `DefId` and prepare it for const qualification. /// - /// See the README for the `mir` module for details. + /// See the [rustc dev guide] for more info. + /// + /// [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/mir/construction.html query mir_built(key: LocalDefId) -> &'tcx Steal> { - desc { |tcx| "preparing `{}` for borrow checking", tcx.def_path_str(key) } + desc { |tcx| "building MIR for `{}`", tcx.def_path_str(key) } } /// Try to build an abstract representation of the given constant. diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs index 1636fe2339a93..0da99bf945d44 100644 --- a/compiler/rustc_mir_transform/src/lib.rs +++ b/compiler/rustc_mir_transform/src/lib.rs @@ -279,9 +279,6 @@ fn mir_const_qualif(tcx: TyCtxt<'_>, def: LocalDefId) -> ConstQualifs { validator.qualifs_in_return_place() } -/// Make MIR ready for const evaluation. This is run on all MIR, not just on consts! -/// FIXME(oli-obk): it's unclear whether we still need this phase (and its corresponding query). -/// We used to have this for pre-miri MIR based const eval. fn mir_built(tcx: TyCtxt<'_>, def: LocalDefId) -> &Steal> { // MIR unsafety check uses the raw mir, so make sure it is run. if !tcx.sess.opts.unstable_opts.thir_unsafeck { diff --git a/tests/ui/coroutine/clone-rpit.next.stderr b/tests/ui/coroutine/clone-rpit.next.stderr index f1634324d3fc5..41aa2d63af016 100644 --- a/tests/ui/coroutine/clone-rpit.next.stderr +++ b/tests/ui/coroutine/clone-rpit.next.stderr @@ -19,7 +19,7 @@ note: ...which requires checking if `foo::{closure#0}` contains FFI-unwind calls | LL | move |_: ()| { | ^^^^^^^^^^^^ -note: ...which requires preparing `foo::{closure#0}` for borrow checking... +note: ...which requires building MIR for `foo::{closure#0}`... --> $DIR/clone-rpit.rs:14:5 | LL | move |_: ()| { diff --git a/tests/ui/resolve/multiple_definitions_attribute_merging.stderr b/tests/ui/resolve/multiple_definitions_attribute_merging.stderr index d0af8cef67698..98cad18d442c6 100644 --- a/tests/ui/resolve/multiple_definitions_attribute_merging.stderr +++ b/tests/ui/resolve/multiple_definitions_attribute_merging.stderr @@ -18,7 +18,7 @@ LL | struct Dealigned(u8, T); | = Box query stack during panic: -#0 [mir_built] preparing `::eq` for borrow checking +#0 [mir_built] building MIR for `::eq` #1 [check_unsafety] unsafety-checking `::eq` end of query stack error: aborting due to 2 previous errors diff --git a/tests/ui/resolve/proc_macro_generated_packed.stderr b/tests/ui/resolve/proc_macro_generated_packed.stderr index 0f758ece20721..4e716704610b1 100644 --- a/tests/ui/resolve/proc_macro_generated_packed.stderr +++ b/tests/ui/resolve/proc_macro_generated_packed.stderr @@ -9,7 +9,7 @@ LL | struct Dealigned(u8, T); | = Box query stack during panic: -#0 [mir_built] preparing `::eq` for borrow checking +#0 [mir_built] building MIR for `::eq` #1 [check_unsafety] unsafety-checking `::eq` end of query stack error: aborting due to 1 previous error diff --git a/tests/ui/type-alias-enum-variants/self-in-enum-definition.stderr b/tests/ui/type-alias-enum-variants/self-in-enum-definition.stderr index f1e3518aa82eb..084008d8b2a42 100644 --- a/tests/ui/type-alias-enum-variants/self-in-enum-definition.stderr +++ b/tests/ui/type-alias-enum-variants/self-in-enum-definition.stderr @@ -34,7 +34,7 @@ note: ...which requires const checking `Alpha::V3::{constant#0}`... | LL | V3 = Self::V1 {} as u8 + 2, | ^^^^^^^^^^^^^^^^^^^^^ -note: ...which requires preparing `Alpha::V3::{constant#0}` for borrow checking... +note: ...which requires building MIR for `Alpha::V3::{constant#0}`... --> $DIR/self-in-enum-definition.rs:5:10 | LL | V3 = Self::V1 {} as u8 + 2, From 0d5a3f464ff6cb5868fba0e7ca46e9e917c41ea6 Mon Sep 17 00:00:00 2001 From: RoboSchmied Date: Wed, 20 Mar 2024 04:41:32 +0100 Subject: [PATCH 13/54] Update target.rs alloc.rs event.rs simd.rs fix typos --- compiler/stable_mir/src/mir/alloc.rs | 4 ++-- compiler/stable_mir/src/target.rs | 2 +- library/core/src/intrinsics/simd.rs | 2 +- src/tools/miri/src/shims/intrinsics/simd.rs | 4 ++-- src/tools/miri/src/shims/unix/linux/fd/event.rs | 4 ++-- 5 files changed, 8 insertions(+), 8 deletions(-) diff --git a/compiler/stable_mir/src/mir/alloc.rs b/compiler/stable_mir/src/mir/alloc.rs index c780042ff261c..535808aa0ad39 100644 --- a/compiler/stable_mir/src/mir/alloc.rs +++ b/compiler/stable_mir/src/mir/alloc.rs @@ -55,7 +55,7 @@ impl IndexedVal for AllocId { /// Utility function used to read an allocation data into a unassigned integer. pub(crate) fn read_target_uint(mut bytes: &[u8]) -> Result { let mut buf = [0u8; std::mem::size_of::()]; - match MachineInfo::target_endianess() { + match MachineInfo::target_endianness() { Endian::Little => { bytes.read(&mut buf)?; Ok(u128::from_le_bytes(buf)) @@ -70,7 +70,7 @@ pub(crate) fn read_target_uint(mut bytes: &[u8]) -> Result { /// Utility function used to read an allocation data into an assigned integer. pub(crate) fn read_target_int(mut bytes: &[u8]) -> Result { let mut buf = [0u8; std::mem::size_of::()]; - match MachineInfo::target_endianess() { + match MachineInfo::target_endianness() { Endian::Little => { bytes.read(&mut buf)?; Ok(i128::from_le_bytes(buf)) diff --git a/compiler/stable_mir/src/target.rs b/compiler/stable_mir/src/target.rs index 3a9011a2ffe15..e00a418c54039 100644 --- a/compiler/stable_mir/src/target.rs +++ b/compiler/stable_mir/src/target.rs @@ -14,7 +14,7 @@ impl MachineInfo { with(|cx| cx.target_info()) } - pub fn target_endianess() -> Endian { + pub fn target_endianness() -> Endian { with(|cx| cx.target_info().endian) } diff --git a/library/core/src/intrinsics/simd.rs b/library/core/src/intrinsics/simd.rs index 2eaca3b6fe4d5..1586481b3c97e 100644 --- a/library/core/src/intrinsics/simd.rs +++ b/library/core/src/intrinsics/simd.rs @@ -474,7 +474,7 @@ extern $abi { /// No matter whether the output is an array or an unsigned integer, it is treated as a single /// contiguous list of bits. The bitmask is always packed on the least-significant side of the /// output, and padded with 0s in the most-significant bits. The order of the bits depends on - /// endianess: + /// endianness: /// /// * On little endian, the least significant bit corresponds to the first vector element. /// * On big endian, the least significant bit corresponds to the last vector element. diff --git a/src/tools/miri/src/shims/intrinsics/simd.rs b/src/tools/miri/src/shims/intrinsics/simd.rs index c97a052f51715..aa05414ab7989 100644 --- a/src/tools/miri/src/shims/intrinsics/simd.rs +++ b/src/tools/miri/src/shims/intrinsics/simd.rs @@ -427,7 +427,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { let bitmask_len = u32::try_from(bitmask_len).unwrap(); // To read the mask, we transmute it to an integer. - // That does the right thing wrt endianess. + // That does the right thing wrt endianness. let mask_ty = this.machine.layouts.uint(mask.layout.size).unwrap(); let mask = mask.transmute(mask_ty, this)?; let mask: u64 = this.read_scalar(&mask)?.to_bits(mask_ty.size)?.try_into().unwrap(); @@ -479,7 +479,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } } // We have to change the type of the place to be able to write `res` into it. This - // transmutes the integer to an array, which does the right thing wrt endianess. + // transmutes the integer to an array, which does the right thing wrt endianness. let dest = dest.transmute(this.machine.layouts.uint(dest.layout.size).unwrap(), this)?; this.write_int(res, &dest)?; diff --git a/src/tools/miri/src/shims/unix/linux/fd/event.rs b/src/tools/miri/src/shims/unix/linux/fd/event.rs index 1f17ffb88c886..49408fda3ae31 100644 --- a/src/tools/miri/src/shims/unix/linux/fd/event.rs +++ b/src/tools/miri/src/shims/unix/linux/fd/event.rs @@ -38,7 +38,7 @@ impl FileDescriptor for Event { } /// A write call adds the 8-byte integer value supplied in - /// its buffer (in native endianess) to the counter. The maximum value that may be + /// its buffer (in native endianness) to the counter. The maximum value that may be /// stored in the counter is the largest unsigned 64-bit value /// minus 1 (i.e., 0xfffffffffffffffe). If the addition would /// cause the counter's value to exceed the maximum, then the @@ -57,7 +57,7 @@ impl FileDescriptor for Event { ) -> InterpResult<'tcx, io::Result> { let v1 = self.val.get(); let bytes: [u8; 8] = bytes.try_into().unwrap(); // FIXME fail gracefully when this has the wrong size - // Convert from target endianess to host endianess. + // Convert from target endianness to host endianness. let num = match tcx.sess.target.endian { Endian::Little => u64::from_le_bytes(bytes), Endian::Big => u64::from_be_bytes(bytes), From 2758435a8ed8f339d1f8a72a2676d13a3960544c Mon Sep 17 00:00:00 2001 From: Alex Crichton Date: Wed, 20 Mar 2024 14:54:20 -0700 Subject: [PATCH 14/54] Fix compile of wasm64-unknown-unknown target This target is a Tier 3 target so it's not tested on CI, and it's broken since last used so this commit fixes a small unwind-related issue that cropped up in the meantime. --- library/unwind/src/lib.rs | 1 + library/unwind/src/wasm.rs | 5 ++++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/library/unwind/src/lib.rs b/library/unwind/src/lib.rs index 25bb5938b4cce..51d31a00afe91 100644 --- a/library/unwind/src/lib.rs +++ b/library/unwind/src/lib.rs @@ -4,6 +4,7 @@ #![feature(staged_api)] #![feature(c_unwind)] #![feature(strict_provenance)] +#![cfg_attr(target_arch = "wasm64", feature(simd_wasm64))] #![cfg_attr(not(target_env = "msvc"), feature(libc))] #![cfg_attr( all(target_family = "wasm", not(target_os = "emscripten")), diff --git a/library/unwind/src/wasm.rs b/library/unwind/src/wasm.rs index b06671bcb8309..f4ffac1ba16da 100644 --- a/library/unwind/src/wasm.rs +++ b/library/unwind/src/wasm.rs @@ -59,7 +59,10 @@ pub unsafe fn _Unwind_RaiseException(exception: *mut _Unwind_Exception) -> _Unwi wasm_throw(0, exception.cast()) } else { let _ = exception; - core::arch::wasm32::unreachable() + #[cfg(target_arch = "wasm32")] + core::arch::wasm32::unreachable(); + #[cfg(target_arch = "wasm64")] + core::arch::wasm64::unreachable(); } } } From afc99cc976268885da8aa0457a707306c780c6c6 Mon Sep 17 00:00:00 2001 From: Veera Date: Wed, 20 Mar 2024 19:38:36 -0400 Subject: [PATCH 15/54] Update test for `aarch64` --- tests/ui/asm/aarch64/type-check-3.stderr | 40 ++++++++++++------------ 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/tests/ui/asm/aarch64/type-check-3.stderr b/tests/ui/asm/aarch64/type-check-3.stderr index f710df2dcde96..9e37bb4c203f5 100644 --- a/tests/ui/asm/aarch64/type-check-3.stderr +++ b/tests/ui/asm/aarch64/type-check-3.stderr @@ -4,8 +4,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(reg) 0u8); | ^^ --- for this argument | - = help: use `{0:w}` to have the register formatted as `w0` - = help: or use `{0:x}` to keep the default formatting of `x0` + = help: use `{0:w}` to have the register formatted as `w0` (for 32-bit values) + = help: or use `{0:x}` to keep the default formatting of `x0` (for 64-bit values) = note: `#[warn(asm_sub_register)]` on by default warning: formatting may not be suitable for sub-register argument @@ -14,8 +14,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(reg) 0u16); | ^^ ---- for this argument | - = help: use `{0:w}` to have the register formatted as `w0` - = help: or use `{0:x}` to keep the default formatting of `x0` + = help: use `{0:w}` to have the register formatted as `w0` (for 32-bit values) + = help: or use `{0:x}` to keep the default formatting of `x0` (for 64-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:52:15 @@ -23,8 +23,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(reg) 0i32); | ^^ ---- for this argument | - = help: use `{0:w}` to have the register formatted as `w0` - = help: or use `{0:x}` to keep the default formatting of `x0` + = help: use `{0:w}` to have the register formatted as `w0` (for 32-bit values) + = help: or use `{0:x}` to keep the default formatting of `x0` (for 64-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:54:15 @@ -32,8 +32,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(reg) 0f32); | ^^ ---- for this argument | - = help: use `{0:w}` to have the register formatted as `w0` - = help: or use `{0:x}` to keep the default formatting of `x0` + = help: use `{0:w}` to have the register formatted as `w0` (for 32-bit values) + = help: or use `{0:x}` to keep the default formatting of `x0` (for 64-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:57:15 @@ -41,8 +41,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(vreg) 0i16); | ^^ ---- for this argument | - = help: use `{0:h}` to have the register formatted as `h0` - = help: or use `{0:v}` to keep the default formatting of `v0` + = help: use `{0:h}` to have the register formatted as `h0` (for 16-bit values) + = help: or use `{0:v}` to keep the default formatting of `v0` (for 128-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:59:15 @@ -50,8 +50,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(vreg) 0f32); | ^^ ---- for this argument | - = help: use `{0:s}` to have the register formatted as `s0` - = help: or use `{0:v}` to keep the default formatting of `v0` + = help: use `{0:s}` to have the register formatted as `s0` (for 32-bit values) + = help: or use `{0:v}` to keep the default formatting of `v0` (for 128-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:61:15 @@ -59,8 +59,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(vreg) 0f64); | ^^ ---- for this argument | - = help: use `{0:d}` to have the register formatted as `d0` - = help: or use `{0:v}` to keep the default formatting of `v0` + = help: use `{0:d}` to have the register formatted as `d0` (for 64-bit values) + = help: or use `{0:v}` to keep the default formatting of `v0` (for 128-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:63:15 @@ -68,8 +68,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{}", in(vreg_low16) 0f64); | ^^ ---- for this argument | - = help: use `{0:d}` to have the register formatted as `d0` - = help: or use `{0:v}` to keep the default formatting of `v0` + = help: use `{0:d}` to have the register formatted as `d0` (for 64-bit values) + = help: or use `{0:v}` to keep the default formatting of `v0` (for 128-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:66:15 @@ -77,8 +77,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{0} {0}", in(reg) 0i16); | ^^^ ^^^ ---- for this argument | - = help: use `{0:w}` to have the register formatted as `w0` - = help: or use `{0:x}` to keep the default formatting of `x0` + = help: use `{0:w}` to have the register formatted as `w0` (for 32-bit values) + = help: or use `{0:x}` to keep the default formatting of `x0` (for 64-bit values) warning: formatting may not be suitable for sub-register argument --> $DIR/type-check-3.rs:68:15 @@ -86,8 +86,8 @@ warning: formatting may not be suitable for sub-register argument LL | asm!("{0} {0:x}", in(reg) 0i16); | ^^^ ---- for this argument | - = help: use `{0:w}` to have the register formatted as `w0` - = help: or use `{0:x}` to keep the default formatting of `x0` + = help: use `{0:w}` to have the register formatted as `w0` (for 32-bit values) + = help: or use `{0:x}` to keep the default formatting of `x0` (for 64-bit values) error: type `i128` cannot be used with this register class --> $DIR/type-check-3.rs:73:28 From 6b24fdf8113d5f422bfaeff7071d8251a13468b1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Thu, 21 Mar 2024 00:03:59 +0000 Subject: [PATCH 16/54] Provide structured suggestion for unconstrained generic constant ``` error: unconstrained generic constant --> $DIR/const-argument-if-length.rs:18:10 | LL | pad: [u8; is_zst::()], | ^^^^^^^^^^^^^^^^^^^ | help: try adding a `where` bound | LL | pub struct AtLeastByte where [(); is_zst::()]: { | ++++++++++++++++++++++++++ ``` Detect when the constant expression isn't `usize` and suggest casting: ``` error: unconstrained generic constant --> f300.rs:6:10 | 6 | bb::<{!N}>(); | ^^^^ -Ztrack-diagnostics: created at compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs:3539:36 | help: try adding a `where` bound | 5 | fn b() where [(); {!N} as usize]: { | ++++++++++++++++++++++++++ ``` Fix #122395. --- .../error_reporting/type_err_ctxt_ext.rs | 37 +++++++-- .../const-argument-if-length.full.stderr | 5 +- .../defaults/generic-expr-default.stderr | 10 ++- .../ensure_is_evaluatable.stderr | 5 +- .../fn_with_two_const_inputs.stderr | 5 +- .../abstract-const-as-cast-2.fixed | 21 +++++ .../abstract-const-as-cast-2.rs | 15 ++-- .../abstract-const-as-cast-2.stderr | 21 +++-- .../abstract-const-as-cast-3.stderr | 20 ++++- .../abstract-consts-as-cast-5.stderr | 5 +- ...y-size-in-generic-struct-param.full.stderr | 5 +- .../doesnt_unify_evaluatable.stderr | 5 +- .../const_kind_expr/issue_114151.stderr | 18 +++-- .../relate_binop_arg_tys.stderr | 5 +- .../const_kind_expr/relate_cast_arg_ty.stderr | 5 +- .../const_kind_expr/wf_obligation.stderr | 5 +- .../cross_crate_predicate.stderr | 20 ++++- .../dependence_lint.gce.stderr | 10 ++- .../generic_const_exprs/different-fn.stderr | 5 +- .../issue-62504.full.stderr | 5 +- .../generic_const_exprs/issue-83765.stderr | 5 +- .../generic_const_exprs/issue-85848.stderr | 5 +- .../needs_where_clause.stderr | 5 +- .../no_where_clause.stderr | 10 ++- .../unify-op-with-fn-call.stderr | 5 +- .../issues/issue-67739.full.stderr | 5 +- .../const-generics/issues/issue-71202.stderr | 78 ++++++++++--------- .../const-generics/issues/issue-84659.fixed | 13 ++++ tests/ui/const-generics/issues/issue-84659.rs | 3 +- .../const-generics/issues/issue-84659.stderr | 7 +- .../const-generics/issues/issue-90455.fixed | 13 ++++ tests/ui/const-generics/issues/issue-90455.rs | 3 +- .../const-generics/issues/issue-90455.stderr | 7 +- .../const-needs_drop-monomorphic.stderr | 5 +- .../evaluatable-bounds.fixed | 25 ++++++ .../generic-const-items/evaluatable-bounds.rs | 12 +-- .../evaluatable-bounds.stderr | 13 ++++ .../evaluatable-bounds.unconstrained.stderr | 5 +- tests/ui/simd/array-trait.stderr | 6 +- tests/ui/specialization/issue-51892.stderr | 5 +- .../variance-associated-consts.stderr | 5 +- 41 files changed, 351 insertions(+), 111 deletions(-) create mode 100644 tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.fixed create mode 100644 tests/ui/const-generics/issues/issue-84659.fixed create mode 100644 tests/ui/const-generics/issues/issue-90455.fixed create mode 100644 tests/ui/generic-const-items/evaluatable-bounds.fixed create mode 100644 tests/ui/generic-const-items/evaluatable-bounds.stderr diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs index 4bc3ff92a6751..5c4a48896ee56 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs @@ -3538,12 +3538,39 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let mut err = self.dcx().struct_span_err(span, "unconstrained generic constant"); let const_span = self.tcx.def_span(uv.def); + + let const_ty = self.tcx.type_of(uv.def).instantiate(self.tcx, uv.args); + let cast = if const_ty != self.tcx.types.usize { " as usize" } else { "" }; + let msg = "try adding a `where` bound"; match self.tcx.sess.source_map().span_to_snippet(const_span) { - Ok(snippet) => err.help(format!( - "try adding a `where` bound using this expression: `where [(); {snippet}]:`" - )), - _ => err.help("consider adding a `where` bound using this expression"), - }; + Ok(snippet) => { + let code = format!("[(); {snippet}{cast}]:"); + let def_id = if let ObligationCauseCode::CompareImplItemObligation { + trait_item_def_id, + .. + } = obligation.cause.code() + { + trait_item_def_id.as_local() + } else { + Some(obligation.cause.body_id) + }; + if let Some(def_id) = def_id + && let Some(generics) = self.tcx.hir().get_generics(def_id) + { + err.span_suggestion_verbose( + generics.tail_span_for_predicate_suggestion(), + msg, + format!("{} {code}", generics.add_where_or_trailing_comma()), + Applicability::MaybeIncorrect, + ); + } else { + err.help(format!("{msg}: where {code}")); + }; + } + _ => { + err.help(msg); + } + }; Ok(err) } ty::ConstKind::Expr(_) => { diff --git a/tests/ui/const-generics/const-argument-if-length.full.stderr b/tests/ui/const-generics/const-argument-if-length.full.stderr index db3d88392bd57..4de98c11d2b77 100644 --- a/tests/ui/const-generics/const-argument-if-length.full.stderr +++ b/tests/ui/const-generics/const-argument-if-length.full.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | pad: [u8; is_zst::()], | ^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); is_zst::()]:` +help: try adding a `where` bound + | +LL | pub struct AtLeastByte where [(); is_zst::()]: { + | ++++++++++++++++++++++++++ error[E0277]: the size for values of type `T` cannot be known at compilation time --> $DIR/const-argument-if-length.rs:16:12 diff --git a/tests/ui/const-generics/defaults/generic-expr-default.stderr b/tests/ui/const-generics/defaults/generic-expr-default.stderr index ada1498d1c80b..909edada4cbe8 100644 --- a/tests/ui/const-generics/defaults/generic-expr-default.stderr +++ b/tests/ui/const-generics/defaults/generic-expr-default.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | pub fn needs_evaluatable_bound() -> Foo { | ^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { N + 1 }]:` +help: try adding a `where` bound + | +LL | pub fn needs_evaluatable_bound() -> Foo where [(); { N + 1 }]: { + | ++++++++++++++++++++++ error: unconstrained generic constant --> $DIR/generic-expr-default.rs:14:58 @@ -12,7 +15,10 @@ error: unconstrained generic constant LL | fn needs_evaluatable_bound_alias() -> FooAlias | ^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { N + 1 }]:` +help: try adding a `where` bound + | +LL | fn needs_evaluatable_bound_alias() -> FooAlias where [(); { N + 1 }]: + | ++++++++++++++++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/ensure_is_evaluatable.stderr b/tests/ui/const-generics/ensure_is_evaluatable.stderr index b9bd9160b13c2..62f8bc34f2edd 100644 --- a/tests/ui/const-generics/ensure_is_evaluatable.stderr +++ b/tests/ui/const-generics/ensure_is_evaluatable.stderr @@ -4,7 +4,6 @@ error: unconstrained generic constant LL | bar() | ^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); N + 1]:` note: required by a bound in `bar` --> $DIR/ensure_is_evaluatable.rs:15:10 | @@ -13,6 +12,10 @@ LL | fn bar() -> [(); N] LL | where LL | [(); N + 1]:, | ^^^^^ required by this bound in `bar` +help: try adding a `where` bound + | +LL | [(); M + 1]:, [(); N + 1]: + | ~~~~~~~~~~~~~~ error: aborting due to 1 previous error diff --git a/tests/ui/const-generics/fn_with_two_const_inputs.stderr b/tests/ui/const-generics/fn_with_two_const_inputs.stderr index ec31e02f144b8..c0a913a21fd2d 100644 --- a/tests/ui/const-generics/fn_with_two_const_inputs.stderr +++ b/tests/ui/const-generics/fn_with_two_const_inputs.stderr @@ -4,7 +4,6 @@ error: unconstrained generic constant LL | bar() | ^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); N + 1]:` note: required by a bound in `bar` --> $DIR/fn_with_two_const_inputs.rs:18:10 | @@ -13,6 +12,10 @@ LL | fn bar() -> [(); N] LL | where LL | [(); N + 1]:, | ^^^^^ required by this bound in `bar` +help: try adding a `where` bound + | +LL | [(); both(N + 1, M + 1)]:, [(); N + 1]: + | ~~~~~~~~~~~~~~ error: aborting due to 1 previous error diff --git a/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.fixed b/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.fixed new file mode 100644 index 0000000000000..929282f40e64b --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.fixed @@ -0,0 +1,21 @@ +//@ run-rustfix +#![feature(generic_const_exprs)] +#![allow(incomplete_features, dead_code)] + +struct Evaluatable {} + +struct Foo([u8; N as usize]) +//~^ ERROR unconstrained generic constant +where + Evaluatable<{N as u128}>:, [(); N as usize]:; +//~^ HELP try adding a `where` bound + +struct Foo2(Evaluatable::<{N as u128}>) where Evaluatable<{N as usize as u128 }>:, [(); {N as u128} as usize]:; +//~^ ERROR unconstrained generic constant +//~| HELP try adding a `where` bound + +struct Bar([u8; (N + 2) as usize]) where [(); (N + 1) as usize]:, [(); (N + 2) as usize]:; +//~^ ERROR unconstrained generic constant +//~| HELP try adding a `where` bound + +fn main() {} diff --git a/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.rs b/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.rs index 3b5b87b2b3d63..3a6c4d3545141 100644 --- a/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.rs +++ b/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.rs @@ -1,20 +1,21 @@ +//@ run-rustfix #![feature(generic_const_exprs)] -#![allow(incomplete_features)] +#![allow(incomplete_features, dead_code)] struct Evaluatable {} struct Foo([u8; N as usize]) -//~^ Error: unconstrained generic constant -//~| help: try adding a `where` bound using this expression: `where [(); N as usize]:` +//~^ ERROR unconstrained generic constant where Evaluatable<{N as u128}>:; +//~^ HELP try adding a `where` bound struct Foo2(Evaluatable::<{N as u128}>) where Evaluatable<{N as usize as u128 }>:; -//~^ Error: unconstrained generic constant -//~| help: try adding a `where` bound using this expression: `where [(); {N as u128}]:` +//~^ ERROR unconstrained generic constant +//~| HELP try adding a `where` bound struct Bar([u8; (N + 2) as usize]) where [(); (N + 1) as usize]:; -//~^ Error: unconstrained generic constant -//~| help: try adding a `where` bound using this expression: `where [(); (N + 2) as usize]:` +//~^ ERROR unconstrained generic constant +//~| HELP try adding a `where` bound fn main() {} diff --git a/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.stderr b/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.stderr index 5ca04d25e556e..ce8eca8d25e19 100644 --- a/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.stderr +++ b/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-2.stderr @@ -1,26 +1,35 @@ error: unconstrained generic constant - --> $DIR/abstract-const-as-cast-2.rs:6:25 + --> $DIR/abstract-const-as-cast-2.rs:7:25 | LL | struct Foo([u8; N as usize]) | ^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); N as usize]:` +help: try adding a `where` bound + | +LL | Evaluatable<{N as u128}>:, [(); N as usize]:; + | +++++++++++++++++++ error: unconstrained generic constant - --> $DIR/abstract-const-as-cast-2.rs:12:26 + --> $DIR/abstract-const-as-cast-2.rs:13:26 | LL | struct Foo2(Evaluatable::<{N as u128}>) where Evaluatable<{N as usize as u128 }>:; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); {N as u128}]:` +help: try adding a `where` bound + | +LL | struct Foo2(Evaluatable::<{N as u128}>) where Evaluatable<{N as usize as u128 }>:, [(); {N as u128} as usize]:; + | +++++++++++++++++++++++++++++ error: unconstrained generic constant - --> $DIR/abstract-const-as-cast-2.rs:16:25 + --> $DIR/abstract-const-as-cast-2.rs:17:25 | LL | struct Bar([u8; (N + 2) as usize]) where [(); (N + 1) as usize]:; | ^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); (N + 2) as usize]:` +help: try adding a `where` bound + | +LL | struct Bar([u8; (N + 2) as usize]) where [(); (N + 1) as usize]:, [(); (N + 2) as usize]:; + | +++++++++++++++++++++++++ error: aborting due to 3 previous errors diff --git a/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-3.stderr b/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-3.stderr index bd6fd67b89d74..3622ef16a9608 100644 --- a/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-3.stderr +++ b/tests/ui/const-generics/generic_const_exprs/abstract-const-as-cast-3.stderr @@ -4,7 +4,6 @@ error: unconstrained generic constant LL | assert_impl::>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { O as u128 }]:` note: required for `HasCastInTraitImpl<{ N + 1 }, { N as u128 }>` to implement `Trait` --> $DIR/abstract-const-as-cast-3.rs:8:22 | @@ -15,6 +14,10 @@ note: required by a bound in `use_trait_impl::assert_impl` | LL | fn assert_impl() {} | ^^^^^ required by this bound in `assert_impl` +help: try adding a `where` bound + | +LL | EvaluatableU128<{N as u128}>:, [(); { O as u128 } as usize]: { + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error[E0308]: mismatched types --> $DIR/abstract-const-as-cast-3.rs:17:5 @@ -36,7 +39,6 @@ error: unconstrained generic constant LL | assert_impl::>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { O as u128 }]:` note: required for `HasCastInTraitImpl<{ N + 1 }, { N as _ }>` to implement `Trait` --> $DIR/abstract-const-as-cast-3.rs:8:22 | @@ -47,6 +49,10 @@ note: required by a bound in `use_trait_impl::assert_impl` | LL | fn assert_impl() {} | ^^^^^ required by this bound in `assert_impl` +help: try adding a `where` bound + | +LL | EvaluatableU128<{N as u128}>:, [(); { O as u128 } as usize]: { + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error[E0308]: mismatched types --> $DIR/abstract-const-as-cast-3.rs:20:5 @@ -96,7 +102,6 @@ error: unconstrained generic constant LL | assert_impl::>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { O as u128 }]:` note: required for `HasCastInTraitImpl<{ N + 1 }, { N as u128 }>` to implement `Trait` --> $DIR/abstract-const-as-cast-3.rs:8:22 | @@ -107,6 +112,10 @@ note: required by a bound in `use_trait_impl_2::assert_impl` | LL | fn assert_impl() {} | ^^^^^ required by this bound in `assert_impl` +help: try adding a `where` bound + | +LL | EvaluatableU128<{N as _}>:, [(); { O as u128 } as usize]: { + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error[E0308]: mismatched types --> $DIR/abstract-const-as-cast-3.rs:35:5 @@ -128,7 +137,6 @@ error: unconstrained generic constant LL | assert_impl::>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { O as u128 }]:` note: required for `HasCastInTraitImpl<{ N + 1 }, { N as _ }>` to implement `Trait` --> $DIR/abstract-const-as-cast-3.rs:8:22 | @@ -139,6 +147,10 @@ note: required by a bound in `use_trait_impl_2::assert_impl` | LL | fn assert_impl() {} | ^^^^^ required by this bound in `assert_impl` +help: try adding a `where` bound + | +LL | EvaluatableU128<{N as _}>:, [(); { O as u128 } as usize]: { + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error[E0308]: mismatched types --> $DIR/abstract-const-as-cast-3.rs:38:5 diff --git a/tests/ui/const-generics/generic_const_exprs/abstract-consts-as-cast-5.stderr b/tests/ui/const-generics/generic_const_exprs/abstract-consts-as-cast-5.stderr index 4b76ae6cfd56d..5fc36ebc92927 100644 --- a/tests/ui/const-generics/generic_const_exprs/abstract-consts-as-cast-5.stderr +++ b/tests/ui/const-generics/generic_const_exprs/abstract-consts-as-cast-5.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | bar::<{ N as usize as usize }>(); | ^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { N as usize as usize }]:` +help: try adding a `where` bound + | +LL | fn foo(a: [(); N as usize]) where [(); { N as usize as usize }]: { + | ++++++++++++++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.full.stderr b/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.full.stderr index c478718b4cc79..471b850d8d544 100644 --- a/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.full.stderr +++ b/tests/ui/const-generics/generic_const_exprs/array-size-in-generic-struct-param.full.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | struct ArithArrayLen([u32; 0 + N]); | ^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); 0 + N]:` +help: try adding a `where` bound + | +LL | struct ArithArrayLen([u32; 0 + N]) where [(); 0 + N]:; + | ++++++++++++++++++ error: overly complex generic constant --> $DIR/array-size-in-generic-struct-param.rs:23:15 diff --git a/tests/ui/const-generics/generic_const_exprs/assoc_const_unification/doesnt_unify_evaluatable.stderr b/tests/ui/const-generics/generic_const_exprs/assoc_const_unification/doesnt_unify_evaluatable.stderr index a8657bf5263a8..f3a38fcc00544 100644 --- a/tests/ui/const-generics/generic_const_exprs/assoc_const_unification/doesnt_unify_evaluatable.stderr +++ b/tests/ui/const-generics/generic_const_exprs/assoc_const_unification/doesnt_unify_evaluatable.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | bar::<{ T::ASSOC }>(); | ^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { T::ASSOC }]:` +help: try adding a `where` bound + | +LL | fn foo() where [(); U::ASSOC]:, [(); { T::ASSOC }]: { + | ~~~~~~~~~~~~~~~~~~~~~ error: aborting due to 1 previous error diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/issue_114151.stderr b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/issue_114151.stderr index 9a8aa222dc1cc..0c29d94ed5b4a 100644 --- a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/issue_114151.stderr +++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/issue_114151.stderr @@ -24,7 +24,10 @@ error: unconstrained generic constant LL | foo::<_, L>([(); L + 1 + L]); | ^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); L + 1 + L]:` +help: try adding a `where` bound + | +LL | [(); (L - 1) + 1 + L]:, [(); L + 1 + L]: + | ~~~~~~~~~~~~~~~~~~ error: unconstrained generic constant --> $DIR/issue_114151.rs:17:17 @@ -34,11 +37,6 @@ LL | foo::<_, L>([(); L + 1 + L]); | | | required by a bound introduced by this call | - = help: try adding a `where` bound using this expression: `where [(); { - { - N - } - }]:` note: required by a bound in `foo` --> $DIR/issue_114151.rs:5:13 | @@ -51,6 +49,14 @@ LL | | N LL | | } LL | | }], | |_____^ required by this bound in `foo` +help: try adding a `where` bound + | +LL ~ [(); (L - 1) + 1 + L]:, [(); { +LL + { +LL + N +LL + } +LL + }]: + | error: unconstrained generic constant `L + 1 + L` --> $DIR/issue_114151.rs:17:5 diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr index ba824e84a5aca..6a62c0b4778bd 100644 --- a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr +++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr @@ -13,7 +13,10 @@ error: unconstrained generic constant LL | Bar::<{ make_generic(N, 1_u8 == 0_u8) }> | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { make_generic(N, 1_u8 == 0_u8) }]:` +help: try adding a `where` bound + | +LL | fn foo() -> Bar<{ make_generic(N, true == false) }> where [(); { make_generic(N, 1_u8 == 0_u8) } as usize]: { + | +++++++++++++++++++++++++++++++++++++++++++++++++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr index d3ba870a2d7cf..fba8b9e7784d9 100644 --- a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr +++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr @@ -13,7 +13,10 @@ error: unconstrained generic constant LL | [(); (1_u8 as usize) + N] | ^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); (1_u8 as usize) + N]:` +help: try adding a `where` bound + | +LL | fn foo() -> [(); (true as usize) + N] where [(); (1_u8 as usize) + N]: { + | ++++++++++++++++++++++++++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/wf_obligation.stderr b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/wf_obligation.stderr index da5194696e657..99eab935a094c 100644 --- a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/wf_obligation.stderr +++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/wf_obligation.stderr @@ -13,7 +13,10 @@ error: unconstrained generic constant LL | foo::<_, L>([(); L + 1 + L]); | ^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); L + 1 + L]:` +help: try adding a `where` bound + | +LL | [(); (L - 1) + 1 + L]:, [(); L + 1 + L]: + | ~~~~~~~~~~~~~~~~~~ error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/generic_const_exprs/cross_crate_predicate.stderr b/tests/ui/const-generics/generic_const_exprs/cross_crate_predicate.stderr index 921314f0c5044..a05aaf2af649e 100644 --- a/tests/ui/const-generics/generic_const_exprs/cross_crate_predicate.stderr +++ b/tests/ui/const-generics/generic_const_exprs/cross_crate_predicate.stderr @@ -4,7 +4,6 @@ error: unconstrained generic constant LL | let _ = const_evaluatable_lib::test1::(); | ^ | - = help: try adding a `where` bound using this expression: `where [(); std::mem::size_of::() - 1]:` note: required by a bound in `test1` --> $DIR/auxiliary/const_evaluatable_lib.rs:5:10 | @@ -13,6 +12,10 @@ LL | pub fn test1() -> [u8; std::mem::size_of::() - 1] LL | where LL | [u8; std::mem::size_of::() - 1]: Sized, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `test1` +help: try adding a `where` bound + | +LL | fn user() where [(); std::mem::size_of::() - 1]: { + | +++++++++++++++++++++++++++++++++++++++++ error: unconstrained generic constant --> $DIR/cross_crate_predicate.rs:7:44 @@ -20,12 +23,15 @@ error: unconstrained generic constant LL | let _ = const_evaluatable_lib::test1::(); | ^ | - = help: try adding a `where` bound using this expression: `where [(); std::mem::size_of::() - 1]:` note: required by a bound in `test1` --> $DIR/auxiliary/const_evaluatable_lib.rs:3:27 | LL | pub fn test1() -> [u8; std::mem::size_of::() - 1] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `test1` +help: try adding a `where` bound + | +LL | fn user() where [(); std::mem::size_of::() - 1]: { + | +++++++++++++++++++++++++++++++++++++++++ error: unconstrained generic constant --> $DIR/cross_crate_predicate.rs:7:13 @@ -33,7 +39,6 @@ error: unconstrained generic constant LL | let _ = const_evaluatable_lib::test1::(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); std::mem::size_of::() - 1]:` note: required by a bound in `test1` --> $DIR/auxiliary/const_evaluatable_lib.rs:5:10 | @@ -42,6 +47,10 @@ LL | pub fn test1() -> [u8; std::mem::size_of::() - 1] LL | where LL | [u8; std::mem::size_of::() - 1]: Sized, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `test1` +help: try adding a `where` bound + | +LL | fn user() where [(); std::mem::size_of::() - 1]: { + | +++++++++++++++++++++++++++++++++++++++++ error: unconstrained generic constant --> $DIR/cross_crate_predicate.rs:7:13 @@ -49,12 +58,15 @@ error: unconstrained generic constant LL | let _ = const_evaluatable_lib::test1::(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); std::mem::size_of::() - 1]:` note: required by a bound in `test1` --> $DIR/auxiliary/const_evaluatable_lib.rs:3:27 | LL | pub fn test1() -> [u8; std::mem::size_of::() - 1] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `test1` +help: try adding a `where` bound + | +LL | fn user() where [(); std::mem::size_of::() - 1]: { + | +++++++++++++++++++++++++++++++++++++++++ error: aborting due to 4 previous errors diff --git a/tests/ui/const-generics/generic_const_exprs/dependence_lint.gce.stderr b/tests/ui/const-generics/generic_const_exprs/dependence_lint.gce.stderr index 74111ef1d38cd..632ece0ddcb30 100644 --- a/tests/ui/const-generics/generic_const_exprs/dependence_lint.gce.stderr +++ b/tests/ui/const-generics/generic_const_exprs/dependence_lint.gce.stderr @@ -20,7 +20,10 @@ error: unconstrained generic constant LL | let _: [u8; size_of::<*mut T>()]; // error on stable, error with gce | ^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); size_of::<*mut T>()]:` +help: try adding a `where` bound + | +LL | fn foo() where [(); size_of::<*mut T>()]: { + | ++++++++++++++++++++++++++++++++ error: unconstrained generic constant --> $DIR/dependence_lint.rs:10:9 @@ -28,7 +31,10 @@ error: unconstrained generic constant LL | [0; size_of::<*mut T>()]; // lint on stable, error with `generic_const_exprs` | ^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); size_of::<*mut T>()]:` +help: try adding a `where` bound + | +LL | fn foo() where [(); size_of::<*mut T>()]: { + | ++++++++++++++++++++++++++++++++ error: aborting due to 4 previous errors diff --git a/tests/ui/const-generics/generic_const_exprs/different-fn.stderr b/tests/ui/const-generics/generic_const_exprs/different-fn.stderr index 83a2f3740b146..52917df0da157 100644 --- a/tests/ui/const-generics/generic_const_exprs/different-fn.stderr +++ b/tests/ui/const-generics/generic_const_exprs/different-fn.stderr @@ -13,7 +13,10 @@ error: unconstrained generic constant LL | [0; size_of::>()] | ^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); size_of::>()]:` +help: try adding a `where` bound + | +LL | fn test() -> [u8; size_of::()] where [(); size_of::>()]: { + | ++++++++++++++++++++++++++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/generic_const_exprs/issue-62504.full.stderr b/tests/ui/const-generics/generic_const_exprs/issue-62504.full.stderr index 87e26ce85dcfd..f27d52a1437f5 100644 --- a/tests/ui/const-generics/generic_const_exprs/issue-62504.full.stderr +++ b/tests/ui/const-generics/generic_const_exprs/issue-62504.full.stderr @@ -13,7 +13,10 @@ error: unconstrained generic constant LL | ArrayHolder([0; Self::SIZE]) | ^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); Self::SIZE]:` +help: try adding a `where` bound + | +LL | pub const fn new() -> Self where [(); Self::SIZE]: { + | +++++++++++++++++++++++ error[E0282]: type annotations needed for `ArrayHolder` --> $DIR/issue-62504.rs:26:9 diff --git a/tests/ui/const-generics/generic_const_exprs/issue-83765.stderr b/tests/ui/const-generics/generic_const_exprs/issue-83765.stderr index b693023f125a4..ca6681b635a4a 100644 --- a/tests/ui/const-generics/generic_const_exprs/issue-83765.stderr +++ b/tests/ui/const-generics/generic_const_exprs/issue-83765.stderr @@ -13,12 +13,15 @@ error: unconstrained generic constant LL | self.reference.size() | ^^^^ | - = help: try adding a `where` bound using this expression: `where [(); Self::DIM]:` note: required by a bound in `TensorSize::size` --> $DIR/issue-83765.rs:9:31 | LL | fn size(&self) -> [usize; Self::DIM]; | ^^^^^^^^^ required by this bound in `TensorSize::size` +help: try adding a `where` bound + | +LL | fn size(&self) -> [usize; DIM] where [(); Self::DIM]: { + | ++++++++++++++++++++++ error[E0308]: mismatched types --> $DIR/issue-83765.rs:32:9 diff --git a/tests/ui/const-generics/generic_const_exprs/issue-85848.stderr b/tests/ui/const-generics/generic_const_exprs/issue-85848.stderr index 3acccba026f26..4abe39eb598c8 100644 --- a/tests/ui/const-generics/generic_const_exprs/issue-85848.stderr +++ b/tests/ui/const-generics/generic_const_exprs/issue-85848.stderr @@ -35,7 +35,6 @@ LL | writes_to_specific_path(&cap); | | | required by a bound introduced by this call | - = help: try adding a `where` bound using this expression: `where [(); { contains::() }]:` note: required for `&C` to implement `Contains<(), true>` --> $DIR/issue-85848.rs:21:12 | @@ -53,6 +52,10 @@ note: required by a bound in `writes_to_specific_path` | LL | fn writes_to_specific_path>(cap: &C) {} | ^^^^^^^^^^^^^ required by this bound in `writes_to_specific_path` +help: try adding a `where` bound + | +LL | fn writes_to_path(cap: &C) where [(); { contains::() } as usize]: { + | ++++++++++++++++++++++++++++++++++++++++++++ error[E0308]: mismatched types --> $DIR/issue-85848.rs:24:5 diff --git a/tests/ui/const-generics/generic_const_exprs/needs_where_clause.stderr b/tests/ui/const-generics/generic_const_exprs/needs_where_clause.stderr index 395088bf2f29c..c83e859ac7972 100644 --- a/tests/ui/const-generics/generic_const_exprs/needs_where_clause.stderr +++ b/tests/ui/const-generics/generic_const_exprs/needs_where_clause.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | b: [f32; complex_maths::(N)], | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); complex_maths::(N)]:` +help: try adding a `where` bound + | +LL | struct Example where [(); complex_maths::(N)]: { + | ++++++++++++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/const-generics/generic_const_exprs/no_where_clause.stderr b/tests/ui/const-generics/generic_const_exprs/no_where_clause.stderr index 4a87649f43de9..a2680eac0398d 100644 --- a/tests/ui/const-generics/generic_const_exprs/no_where_clause.stderr +++ b/tests/ui/const-generics/generic_const_exprs/no_where_clause.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | b: [f32; complex_maths(N)], | ^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); complex_maths(N)]:` +help: try adding a `where` bound + | +LL | pub struct Example where [(); complex_maths(N)]: { + | +++++++++++++++++++++++++++++ error: unconstrained generic constant --> $DIR/no_where_clause.rs:18:15 @@ -12,7 +15,10 @@ error: unconstrained generic constant LL | b: [0.; complex_maths(N)], | ^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); complex_maths(N)]:` +help: try adding a `where` bound + | +LL | pub fn new() -> Self where [(); complex_maths(N)]: { + | +++++++++++++++++++++++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.stderr b/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.stderr index 0bf99bb8b2641..335130c958f0e 100644 --- a/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.stderr +++ b/tests/ui/const-generics/generic_const_exprs/unify-op-with-fn-call.stderr @@ -40,7 +40,10 @@ error: unconstrained generic constant LL | bar2::<{ std::ops::Add::add(N, N) }>(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { std::ops::Add::add(N, N) }]:` +help: try adding a `where` bound + | +LL | fn foo2(a: Evaluatable2<{ N + N }>) where [(); { std::ops::Add::add(N, N) }]: { + | +++++++++++++++++++++++++++++++++++++++++ error[E0015]: cannot call non-const operator in constants --> $DIR/unify-op-with-fn-call.rs:20:39 diff --git a/tests/ui/const-generics/issues/issue-67739.full.stderr b/tests/ui/const-generics/issues/issue-67739.full.stderr index bdf05023d5f0b..99368a6614855 100644 --- a/tests/ui/const-generics/issues/issue-67739.full.stderr +++ b/tests/ui/const-generics/issues/issue-67739.full.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | [0u8; mem::size_of::()]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); mem::size_of::()]:` +help: try adding a `where` bound + | +LL | fn associated_size(&self) -> usize where [(); mem::size_of::()]: { + | +++++++++++++++++++++++++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/const-generics/issues/issue-71202.stderr b/tests/ui/const-generics/issues/issue-71202.stderr index 437b808c893c2..a2d382218526e 100644 --- a/tests/ui/const-generics/issues/issue-71202.stderr +++ b/tests/ui/const-generics/issues/issue-71202.stderr @@ -10,24 +10,27 @@ LL | | >::VALUE LL | | } as usize] = []; | |_____________________^ | - = help: try adding a `where` bound using this expression: `where [(); 1 - { - trait NotCopy { - const VALUE: bool = false; - } - - impl<__Type: ?Sized> NotCopy for __Type {} - - struct IsCopy<__Type: ?Sized>(PhantomData<__Type>); - - impl<__Type> IsCopy<__Type> - where - __Type: Sized + Copy, - { - const VALUE: bool = true; - } - - >::VALUE - } as usize]:` +help: try adding a `where` bound + | +LL ~ } as usize] where [(); 1 - { +LL + trait NotCopy { +LL + const VALUE: bool = false; +LL + } +LL + +LL + impl<__Type: ?Sized> NotCopy for __Type {} +LL + +LL + struct IsCopy<__Type: ?Sized>(PhantomData<__Type>); +LL + +LL + impl<__Type> IsCopy<__Type> +LL + where +LL + __Type: Sized + Copy, +LL + { +LL + const VALUE: bool = true; +LL + } +LL + +LL + >::VALUE +LL ~ } as usize]: = []; + | error: unconstrained generic constant --> $DIR/issue-71202.rs:28:19 @@ -35,24 +38,27 @@ error: unconstrained generic constant LL | } as usize] = []; | ^^ | - = help: try adding a `where` bound using this expression: `where [(); 1 - { - trait NotCopy { - const VALUE: bool = false; - } - - impl<__Type: ?Sized> NotCopy for __Type {} - - struct IsCopy<__Type: ?Sized>(PhantomData<__Type>); - - impl<__Type> IsCopy<__Type> - where - __Type: Sized + Copy, - { - const VALUE: bool = true; - } - - >::VALUE - } as usize]:` +help: try adding a `where` bound + | +LL ~ } as usize] where [(); 1 - { +LL + trait NotCopy { +LL + const VALUE: bool = false; +LL + } +LL + +LL + impl<__Type: ?Sized> NotCopy for __Type {} +LL + +LL + struct IsCopy<__Type: ?Sized>(PhantomData<__Type>); +LL + +LL + impl<__Type> IsCopy<__Type> +LL + where +LL + __Type: Sized + Copy, +LL + { +LL + const VALUE: bool = true; +LL + } +LL + +LL + >::VALUE +LL ~ } as usize]: = []; + | error: aborting due to 2 previous errors diff --git a/tests/ui/const-generics/issues/issue-84659.fixed b/tests/ui/const-generics/issues/issue-84659.fixed new file mode 100644 index 0000000000000..85f1adc5c19dc --- /dev/null +++ b/tests/ui/const-generics/issues/issue-84659.fixed @@ -0,0 +1,13 @@ +//@ run-rustfix +#![allow(incomplete_features, dead_code, unused_braces)] +#![feature(generic_const_exprs)] + +trait Bar {} + +trait Foo<'a> { + const N: usize; + type Baz: Bar<{ Self::N }> where [(); { Self::N }]:; + //~^ ERROR: unconstrained generic constant +} + +fn main() {} diff --git a/tests/ui/const-generics/issues/issue-84659.rs b/tests/ui/const-generics/issues/issue-84659.rs index 440ca740af2b0..b2ea6320f73bc 100644 --- a/tests/ui/const-generics/issues/issue-84659.rs +++ b/tests/ui/const-generics/issues/issue-84659.rs @@ -1,4 +1,5 @@ -#![allow(incomplete_features)] +//@ run-rustfix +#![allow(incomplete_features, dead_code, unused_braces)] #![feature(generic_const_exprs)] trait Bar {} diff --git a/tests/ui/const-generics/issues/issue-84659.stderr b/tests/ui/const-generics/issues/issue-84659.stderr index 796c5515e0458..82e80603c7f5c 100644 --- a/tests/ui/const-generics/issues/issue-84659.stderr +++ b/tests/ui/const-generics/issues/issue-84659.stderr @@ -1,10 +1,13 @@ error: unconstrained generic constant - --> $DIR/issue-84659.rs:8:15 + --> $DIR/issue-84659.rs:9:15 | LL | type Baz: Bar<{ Self::N }>; | ^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { Self::N }]:` +help: try adding a `where` bound + | +LL | type Baz: Bar<{ Self::N }> where [(); { Self::N }]:; + | ++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/const-generics/issues/issue-90455.fixed b/tests/ui/const-generics/issues/issue-90455.fixed new file mode 100644 index 0000000000000..2502d47eb4628 --- /dev/null +++ b/tests/ui/const-generics/issues/issue-90455.fixed @@ -0,0 +1,13 @@ +//@ run-rustfix +#![feature(generic_const_exprs, adt_const_params)] +#![allow(incomplete_features, dead_code)] + +struct FieldElement where [(); num_limbs(N)]: { + n: [u64; num_limbs(N)], + //~^ ERROR unconstrained generic constant +} +const fn num_limbs(_: &str) -> usize { + 0 +} + +fn main() {} diff --git a/tests/ui/const-generics/issues/issue-90455.rs b/tests/ui/const-generics/issues/issue-90455.rs index a580410cf37ef..794c7d76cb1f0 100644 --- a/tests/ui/const-generics/issues/issue-90455.rs +++ b/tests/ui/const-generics/issues/issue-90455.rs @@ -1,5 +1,6 @@ +//@ run-rustfix #![feature(generic_const_exprs, adt_const_params)] -#![allow(incomplete_features)] +#![allow(incomplete_features, dead_code)] struct FieldElement { n: [u64; num_limbs(N)], diff --git a/tests/ui/const-generics/issues/issue-90455.stderr b/tests/ui/const-generics/issues/issue-90455.stderr index 1db906095727e..1fcc08db579be 100644 --- a/tests/ui/const-generics/issues/issue-90455.stderr +++ b/tests/ui/const-generics/issues/issue-90455.stderr @@ -1,10 +1,13 @@ error: unconstrained generic constant - --> $DIR/issue-90455.rs:5:8 + --> $DIR/issue-90455.rs:6:8 | LL | n: [u64; num_limbs(N)], | ^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); num_limbs(N)]:` +help: try adding a `where` bound + | +LL | struct FieldElement where [(); num_limbs(N)]: { + | +++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/consts/const-needs_drop-monomorphic.stderr b/tests/ui/consts/const-needs_drop-monomorphic.stderr index 0874a70ce392e..446d34810c59c 100644 --- a/tests/ui/consts/const-needs_drop-monomorphic.stderr +++ b/tests/ui/consts/const-needs_drop-monomorphic.stderr @@ -13,7 +13,10 @@ error: unconstrained generic constant LL | Bool::<{ std::mem::needs_drop::() }>::assert(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); { std::mem::needs_drop::() }]:` +help: try adding a `where` bound + | +LL | fn f() where [(); { std::mem::needs_drop::() } as usize]: { + | +++++++++++++++++++++++++++++++++++++++++++++++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/generic-const-items/evaluatable-bounds.fixed b/tests/ui/generic-const-items/evaluatable-bounds.fixed new file mode 100644 index 0000000000000..de1baffbcdbaa --- /dev/null +++ b/tests/ui/generic-const-items/evaluatable-bounds.fixed @@ -0,0 +1,25 @@ +// This is a regression test for issue #104400. + +//@ run-rustfix + +// Test that we can constrain generic const items that appear inside associated consts by +// adding a (makeshift) "evaluatable"-bound to the item, after applying the suggestion. + +#![feature(generic_const_items, generic_const_exprs)] +#![allow(incomplete_features)] + +trait Trait { + const LEN: usize; + + const ARRAY: [i32; Self::LEN] where [(); Self::LEN]:; //~ ERROR unconstrained generic constant + +} + +impl Trait for () { + const LEN: usize = 2; + const ARRAY: [i32; Self::LEN] = [360, 720]; +} + +fn main() { + let [_, _] = <() as Trait>::ARRAY; +} diff --git a/tests/ui/generic-const-items/evaluatable-bounds.rs b/tests/ui/generic-const-items/evaluatable-bounds.rs index 1a858f4199923..b47801360f9af 100644 --- a/tests/ui/generic-const-items/evaluatable-bounds.rs +++ b/tests/ui/generic-const-items/evaluatable-bounds.rs @@ -1,10 +1,9 @@ // This is a regression test for issue #104400. -//@ revisions: unconstrained constrained -//@[constrained] check-pass +//@ run-rustfix // Test that we can constrain generic const items that appear inside associated consts by -// adding a (makeshift) "evaluatable"-bound to the item. +// adding a (makeshift) "evaluatable"-bound to the item, after applying the suggestion. #![feature(generic_const_items, generic_const_exprs)] #![allow(incomplete_features)] @@ -12,13 +11,8 @@ trait Trait { const LEN: usize; - #[cfg(unconstrained)] - const ARRAY: [i32; Self::LEN]; //[unconstrained]~ ERROR unconstrained generic constant + const ARRAY: [i32; Self::LEN]; //~ ERROR unconstrained generic constant - #[cfg(constrained)] - const ARRAY: [i32; Self::LEN] - where - [(); Self::LEN]:; } impl Trait for () { diff --git a/tests/ui/generic-const-items/evaluatable-bounds.stderr b/tests/ui/generic-const-items/evaluatable-bounds.stderr new file mode 100644 index 0000000000000..ca26d6336588d --- /dev/null +++ b/tests/ui/generic-const-items/evaluatable-bounds.stderr @@ -0,0 +1,13 @@ +error: unconstrained generic constant + --> $DIR/evaluatable-bounds.rs:14:5 + | +LL | const ARRAY: [i32; Self::LEN]; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: try adding a `where` bound + | +LL | const ARRAY: [i32; Self::LEN] where [(); Self::LEN]:; + | ++++++++++++++++++++++ + +error: aborting due to 1 previous error + diff --git a/tests/ui/generic-const-items/evaluatable-bounds.unconstrained.stderr b/tests/ui/generic-const-items/evaluatable-bounds.unconstrained.stderr index 1475d988ea482..b6f9bdce1cb7a 100644 --- a/tests/ui/generic-const-items/evaluatable-bounds.unconstrained.stderr +++ b/tests/ui/generic-const-items/evaluatable-bounds.unconstrained.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | const ARRAY: [i32; Self::LEN]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); Self::LEN]:` +help: try adding a `where` bound + | +LL | const ARRAY: [i32; Self::LEN] where [(); Self::LEN]:; + | ++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/simd/array-trait.stderr b/tests/ui/simd/array-trait.stderr index 16ff732396dd4..a63dbf37959f8 100644 --- a/tests/ui/simd/array-trait.stderr +++ b/tests/ui/simd/array-trait.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | pub struct T([S::Lane; S::SIZE]); | ^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); S::SIZE]:` +help: try adding a `where` bound + | +LL | pub struct T([S::Lane; S::SIZE]) where [(); S::SIZE]:; + | ++++++++++++++++++++ error[E0077]: SIMD vector element type should be a primitive scalar (integer/float/pointer) type --> $DIR/array-trait.rs:23:1 @@ -20,7 +23,6 @@ LL | #[derive(Copy, Clone)] LL | pub struct T([S::Lane; S::SIZE]); | ^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); S::SIZE]:` = note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 3 previous errors diff --git a/tests/ui/specialization/issue-51892.stderr b/tests/ui/specialization/issue-51892.stderr index 9553a04c8f6bf..b1cabc0ac0e4a 100644 --- a/tests/ui/specialization/issue-51892.stderr +++ b/tests/ui/specialization/issue-51892.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | type Type = [u8; std::mem::size_of::<::Type>()]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); std::mem::size_of::<::Type>()]:` +help: try adding a `where` bound + | +LL | type Type = [u8; std::mem::size_of::<::Type>()] where [(); std::mem::size_of::<::Type>()]:; + | ++++++++++++++++++++++++++++++++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/variance/variance-associated-consts.stderr b/tests/ui/variance/variance-associated-consts.stderr index f41574ca3a37b..b955a7686c2a7 100644 --- a/tests/ui/variance/variance-associated-consts.stderr +++ b/tests/ui/variance/variance-associated-consts.stderr @@ -4,7 +4,10 @@ error: unconstrained generic constant LL | field: [u8; ::Const] | ^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: try adding a `where` bound using this expression: `where [(); ::Const]:` +help: try adding a `where` bound + | +LL | struct Foo where [(); ::Const]: { + | ++++++++++++++++++++++++++++++++ error: [o] --> $DIR/variance-associated-consts.rs:13:1 From c855bf62d7adf3f016637d57423d7f84ef15c334 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Fri, 22 Mar 2024 13:13:04 -0400 Subject: [PATCH 17/54] Add a test --- .../auxiliary/implied-predicates.rs | 7 +++++++ .../implied-predicates.rs | 8 ++++++++ .../implied-predicates.stderr | 19 +++++++++++++++++++ 3 files changed, 34 insertions(+) create mode 100644 tests/ui/associated-type-bounds/auxiliary/implied-predicates.rs create mode 100644 tests/ui/associated-type-bounds/implied-predicates.rs create mode 100644 tests/ui/associated-type-bounds/implied-predicates.stderr diff --git a/tests/ui/associated-type-bounds/auxiliary/implied-predicates.rs b/tests/ui/associated-type-bounds/auxiliary/implied-predicates.rs new file mode 100644 index 0000000000000..fe74c64fbe2aa --- /dev/null +++ b/tests/ui/associated-type-bounds/auxiliary/implied-predicates.rs @@ -0,0 +1,7 @@ +pub trait Bar: Super {} + +pub trait Super { + type SuperAssoc; +} + +pub trait Bound {} diff --git a/tests/ui/associated-type-bounds/implied-predicates.rs b/tests/ui/associated-type-bounds/implied-predicates.rs new file mode 100644 index 0000000000000..91b8a94c64f26 --- /dev/null +++ b/tests/ui/associated-type-bounds/implied-predicates.rs @@ -0,0 +1,8 @@ +//@ aux-build:implied-predicates.rs + +extern crate implied_predicates; +use implied_predicates::Bar; + +fn bar() {} + +fn main() {} diff --git a/tests/ui/associated-type-bounds/implied-predicates.stderr b/tests/ui/associated-type-bounds/implied-predicates.stderr new file mode 100644 index 0000000000000..6527f9f36411d --- /dev/null +++ b/tests/ui/associated-type-bounds/implied-predicates.stderr @@ -0,0 +1,19 @@ +error[E0277]: the trait bound `::SuperAssoc: implied_predicates::Bound` is not satisfied + --> $DIR/implied-predicates.rs:6:11 + | +LL | fn bar() {} + | ^^^ the trait `implied_predicates::Bound` is not implemented for `::SuperAssoc` + | +note: required by a bound in `Bar` + --> $DIR/auxiliary/implied-predicates.rs:1:34 + | +LL | pub trait Bar: Super {} + | ^^^^^ required by this bound in `Bar` +help: consider further restricting the associated type + | +LL | fn bar() where ::SuperAssoc: implied_predicates::Bound {} + | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0277`. From 33614886812c6c4a3b68a3cdd5b3bb5a3626ce49 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Fri, 22 Mar 2024 13:13:40 -0400 Subject: [PATCH 18/54] Always encode implied_predicates query for traits With associated type bounds enabled, the implied_predicates and super_predicates queries may differ for traits, since associated type bounds are also implied but are not counted as super predicates. --- .../src/rmeta/decoder/cstore_impl.rs | 13 +------------ compiler/rustc_metadata/src/rmeta/encoder.rs | 1 + .../implied-predicates.rs | 1 + .../implied-predicates.stderr | 19 ------------------- 4 files changed, 3 insertions(+), 31 deletions(-) delete mode 100644 tests/ui/associated-type-bounds/implied-predicates.stderr diff --git a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs index 1aabd296641d2..b69a295f010f3 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs @@ -211,6 +211,7 @@ provide! { tcx, def_id, other, cdata, generics_of => { table } inferred_outlives_of => { table_defaulted_array } super_predicates_of => { table } + implied_predicates_of => { table } type_of => { table } type_alias_is_lazy => { cdata.root.tables.type_alias_is_lazy.get(cdata, def_id.index) } variances_of => { table } @@ -276,18 +277,6 @@ provide! { tcx, def_id, other, cdata, .map(|lazy| lazy.decode((cdata, tcx))) .process_decoded(tcx, || panic!("{def_id:?} does not have trait_impl_trait_tys"))) } - implied_predicates_of => { - cdata - .root - .tables - .implied_predicates_of - .get(cdata, def_id.index) - .map(|lazy| lazy.decode((cdata, tcx))) - .unwrap_or_else(|| { - debug_assert_eq!(tcx.def_kind(def_id), DefKind::Trait); - tcx.super_predicates_of(def_id) - }) - } associated_types_for_impl_traits_in_associated_fn => { table_defaulted_array } diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index 42724f7dd2ba7..61060038b5006 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -1435,6 +1435,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { if let DefKind::Trait = def_kind { record!(self.tables.trait_def[def_id] <- self.tcx.trait_def(def_id)); record!(self.tables.super_predicates_of[def_id] <- self.tcx.super_predicates_of(def_id)); + record!(self.tables.implied_predicates_of[def_id] <- self.tcx.implied_predicates_of(def_id)); let module_children = self.tcx.module_children_local(local_id); record_array!(self.tables.module_children_non_reexports[def_id] <- diff --git a/tests/ui/associated-type-bounds/implied-predicates.rs b/tests/ui/associated-type-bounds/implied-predicates.rs index 91b8a94c64f26..e97d7a396c470 100644 --- a/tests/ui/associated-type-bounds/implied-predicates.rs +++ b/tests/ui/associated-type-bounds/implied-predicates.rs @@ -1,4 +1,5 @@ //@ aux-build:implied-predicates.rs +//@ check-pass extern crate implied_predicates; use implied_predicates::Bar; diff --git a/tests/ui/associated-type-bounds/implied-predicates.stderr b/tests/ui/associated-type-bounds/implied-predicates.stderr deleted file mode 100644 index 6527f9f36411d..0000000000000 --- a/tests/ui/associated-type-bounds/implied-predicates.stderr +++ /dev/null @@ -1,19 +0,0 @@ -error[E0277]: the trait bound `::SuperAssoc: implied_predicates::Bound` is not satisfied - --> $DIR/implied-predicates.rs:6:11 - | -LL | fn bar() {} - | ^^^ the trait `implied_predicates::Bound` is not implemented for `::SuperAssoc` - | -note: required by a bound in `Bar` - --> $DIR/auxiliary/implied-predicates.rs:1:34 - | -LL | pub trait Bar: Super {} - | ^^^^^ required by this bound in `Bar` -help: consider further restricting the associated type - | -LL | fn bar() where ::SuperAssoc: implied_predicates::Bound {} - | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - -error: aborting due to 1 previous error - -For more information about this error, try `rustc --explain E0277`. From dec36c3d6eca67c900b7bdf03bd8d9dd68c4aa34 Mon Sep 17 00:00:00 2001 From: Matthew Maurer Date: Sun, 3 Mar 2024 03:51:05 +0000 Subject: [PATCH 19/54] CFI: Support self_cell-like recursion Current `transform_ty` attempts to avoid cycles when normalizing `#[repr(transparent)]` types to their interior, but runs afoul of this pattern used in `self_cell`: ``` struct X { x: u8, p: PhantomData, } #[repr(transparent)] struct Y(X); ``` When attempting to normalize Y, it will still cycle indefinitely. By using a types-visited list, this will instead get expanded exactly one layer deep to X, and then stop, not attempting to normalize `Y` any further. --- .../src/typeid/typeid_itanium_cxx_abi.rs | 70 ++++++++++++------- ...-itanium-cxx-abi-repr-transparent-types.rs | 16 +++++ tests/ui/sanitizer/cfi-self-ref.rs | 33 +++++++++ 3 files changed, 94 insertions(+), 25 deletions(-) create mode 100644 tests/ui/sanitizer/cfi-self-ref.rs diff --git a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs index 07a382d161d74..dbd3c3b1f288b 100644 --- a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs +++ b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs @@ -178,14 +178,14 @@ fn encode_fnsig<'tcx>( // Encode the return type let transform_ty_options = TransformTyOptions::from_bits(options.bits()) .unwrap_or_else(|| bug!("encode_fnsig: invalid option(s) `{:?}`", options.bits())); - let ty = transform_ty(tcx, fn_sig.output(), transform_ty_options); + let ty = transform_ty(tcx, fn_sig.output(), &mut Vec::new(), transform_ty_options); s.push_str(&encode_ty(tcx, ty, dict, encode_ty_options)); // Encode the parameter types let tys = fn_sig.inputs(); if !tys.is_empty() { for ty in tys { - let ty = transform_ty(tcx, *ty, transform_ty_options); + let ty = transform_ty(tcx, *ty, &mut Vec::new(), transform_ty_options); s.push_str(&encode_ty(tcx, ty, dict, encode_ty_options)); } @@ -767,11 +767,12 @@ fn transform_predicates<'tcx>( fn transform_args<'tcx>( tcx: TyCtxt<'tcx>, args: GenericArgsRef<'tcx>, + parents: &mut Vec>, options: TransformTyOptions, ) -> GenericArgsRef<'tcx> { let args = args.iter().map(|arg| match arg.unpack() { GenericArgKind::Type(ty) if ty.is_c_void(tcx) => Ty::new_unit(tcx).into(), - GenericArgKind::Type(ty) => transform_ty(tcx, ty, options).into(), + GenericArgKind::Type(ty) => transform_ty(tcx, ty, parents, options).into(), _ => arg, }); tcx.mk_args_from_iter(args) @@ -781,9 +782,12 @@ fn transform_args<'tcx>( // c_void types into unit types unconditionally, generalizes pointers if // TransformTyOptions::GENERALIZE_POINTERS option is set, and normalizes integers if // TransformTyOptions::NORMALIZE_INTEGERS option is set. -fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptions) -> Ty<'tcx> { - let mut ty = ty; - +fn transform_ty<'tcx>( + tcx: TyCtxt<'tcx>, + mut ty: Ty<'tcx>, + parents: &mut Vec>, + options: TransformTyOptions, +) -> Ty<'tcx> { match ty.kind() { ty::Float(..) | ty::Str | ty::Never | ty::Foreign(..) | ty::CoroutineWitness(..) => {} @@ -843,17 +847,20 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio _ if ty.is_unit() => {} ty::Tuple(tys) => { - ty = Ty::new_tup_from_iter(tcx, tys.iter().map(|ty| transform_ty(tcx, ty, options))); + ty = Ty::new_tup_from_iter( + tcx, + tys.iter().map(|ty| transform_ty(tcx, ty, parents, options)), + ); } ty::Array(ty0, len) => { let len = len.eval_target_usize(tcx, ty::ParamEnv::reveal_all()); - ty = Ty::new_array(tcx, transform_ty(tcx, *ty0, options), len); + ty = Ty::new_array(tcx, transform_ty(tcx, *ty0, parents, options), len); } ty::Slice(ty0) => { - ty = Ty::new_slice(tcx, transform_ty(tcx, *ty0, options)); + ty = Ty::new_slice(tcx, transform_ty(tcx, *ty0, parents, options)); } ty::Adt(adt_def, args) => { @@ -862,7 +869,8 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio } else if options.contains(TransformTyOptions::GENERALIZE_REPR_C) && adt_def.repr().c() { ty = Ty::new_adt(tcx, *adt_def, ty::List::empty()); - } else if adt_def.repr().transparent() && adt_def.is_struct() { + } else if adt_def.repr().transparent() && adt_def.is_struct() && !parents.contains(&ty) + { // Don't transform repr(transparent) types with an user-defined CFI encoding to // preserve the user-defined CFI encoding. if let Some(_) = tcx.get_attr(adt_def.did(), sym::cfi_encoding) { @@ -881,38 +889,48 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio // Generalize any repr(transparent) user-defined type that is either a pointer // or reference, and either references itself or any other type that contains or // references itself, to avoid a reference cycle. + + // If the self reference is not through a pointer, for example, due + // to using `PhantomData`, need to skip normalizing it if we hit it again. + parents.push(ty); if ty0.is_any_ptr() && ty0.contains(ty) { ty = transform_ty( tcx, ty0, + parents, options | TransformTyOptions::GENERALIZE_POINTERS, ); } else { - ty = transform_ty(tcx, ty0, options); + ty = transform_ty(tcx, ty0, parents, options); } + parents.pop(); } else { // Transform repr(transparent) types without non-ZST field into () ty = Ty::new_unit(tcx); } } else { - ty = Ty::new_adt(tcx, *adt_def, transform_args(tcx, args, options)); + ty = Ty::new_adt(tcx, *adt_def, transform_args(tcx, args, parents, options)); } } ty::FnDef(def_id, args) => { - ty = Ty::new_fn_def(tcx, *def_id, transform_args(tcx, args, options)); + ty = Ty::new_fn_def(tcx, *def_id, transform_args(tcx, args, parents, options)); } ty::Closure(def_id, args) => { - ty = Ty::new_closure(tcx, *def_id, transform_args(tcx, args, options)); + ty = Ty::new_closure(tcx, *def_id, transform_args(tcx, args, parents, options)); } ty::CoroutineClosure(def_id, args) => { - ty = Ty::new_coroutine_closure(tcx, *def_id, transform_args(tcx, args, options)); + ty = Ty::new_coroutine_closure( + tcx, + *def_id, + transform_args(tcx, args, parents, options), + ); } ty::Coroutine(def_id, args) => { - ty = Ty::new_coroutine(tcx, *def_id, transform_args(tcx, args, options)); + ty = Ty::new_coroutine(tcx, *def_id, transform_args(tcx, args, parents, options)); } ty::Ref(region, ty0, ..) => { @@ -924,9 +942,9 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio } } else { if ty.is_mutable_ptr() { - ty = Ty::new_mut_ref(tcx, *region, transform_ty(tcx, *ty0, options)); + ty = Ty::new_mut_ref(tcx, *region, transform_ty(tcx, *ty0, parents, options)); } else { - ty = Ty::new_imm_ref(tcx, *region, transform_ty(tcx, *ty0, options)); + ty = Ty::new_imm_ref(tcx, *region, transform_ty(tcx, *ty0, parents, options)); } } } @@ -940,9 +958,9 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio } } else { if ty.is_mutable_ptr() { - ty = Ty::new_mut_ptr(tcx, transform_ty(tcx, *ptr_ty, options)); + ty = Ty::new_mut_ptr(tcx, transform_ty(tcx, *ptr_ty, parents, options)); } else { - ty = Ty::new_imm_ptr(tcx, transform_ty(tcx, *ptr_ty, options)); + ty = Ty::new_imm_ptr(tcx, transform_ty(tcx, *ptr_ty, parents, options)); } } } @@ -955,9 +973,9 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio .skip_binder() .inputs() .iter() - .map(|ty| transform_ty(tcx, *ty, options)) + .map(|ty| transform_ty(tcx, *ty, parents, options)) .collect(); - let output = transform_ty(tcx, fn_sig.skip_binder().output(), options); + let output = transform_ty(tcx, fn_sig.skip_binder().output(), parents, options); ty = Ty::new_fn_ptr( tcx, ty::Binder::bind_with_vars( @@ -987,6 +1005,7 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio ty = transform_ty( tcx, tcx.normalize_erasing_regions(ty::ParamEnv::reveal_all(), ty), + parents, options, ); } @@ -1037,7 +1056,7 @@ pub fn typeid_for_fnabi<'tcx>( // Encode the return type let transform_ty_options = TransformTyOptions::from_bits(options.bits()) .unwrap_or_else(|| bug!("typeid_for_fnabi: invalid option(s) `{:?}`", options.bits())); - let ty = transform_ty(tcx, fn_abi.ret.layout.ty, transform_ty_options); + let ty = transform_ty(tcx, fn_abi.ret.layout.ty, &mut Vec::new(), transform_ty_options); typeid.push_str(&encode_ty(tcx, ty, &mut dict, encode_ty_options)); // Encode the parameter types @@ -1049,7 +1068,7 @@ pub fn typeid_for_fnabi<'tcx>( let mut pushed_arg = false; for arg in fn_abi.args.iter().filter(|arg| arg.mode != PassMode::Ignore) { pushed_arg = true; - let ty = transform_ty(tcx, arg.layout.ty, transform_ty_options); + let ty = transform_ty(tcx, arg.layout.ty, &mut Vec::new(), transform_ty_options); typeid.push_str(&encode_ty(tcx, ty, &mut dict, encode_ty_options)); } if !pushed_arg { @@ -1062,7 +1081,8 @@ pub fn typeid_for_fnabi<'tcx>( if fn_abi.args[n].mode == PassMode::Ignore { continue; } - let ty = transform_ty(tcx, fn_abi.args[n].layout.ty, transform_ty_options); + let ty = + transform_ty(tcx, fn_abi.args[n].layout.ty, &mut Vec::new(), transform_ty_options); typeid.push_str(&encode_ty(tcx, ty, &mut dict, encode_ty_options)); } diff --git a/tests/codegen/sanitizer/cfi/emit-type-metadata-id-itanium-cxx-abi-repr-transparent-types.rs b/tests/codegen/sanitizer/cfi/emit-type-metadata-id-itanium-cxx-abi-repr-transparent-types.rs index 6f47f5e335577..1332338b26ab9 100644 --- a/tests/codegen/sanitizer/cfi/emit-type-metadata-id-itanium-cxx-abi-repr-transparent-types.rs +++ b/tests/codegen/sanitizer/cfi/emit-type-metadata-id-itanium-cxx-abi-repr-transparent-types.rs @@ -34,6 +34,12 @@ pub struct Bar(i32); #[repr(transparent)] pub struct Type3(T); +// repr(transparent) wrapper which engages in self-reference +#[repr(transparent)] +pub struct Type4(Type4Helper); +#[repr(transparent)] +pub struct Type4Helper(*mut T); + pub fn foo1(_: Type1) { } // CHECK: define{{.*}}4foo1{{.*}}!type ![[TYPE1:[0-9]+]] !type !{{[0-9]+}} !type !{{[0-9]+}} !type !{{[0-9]+}} pub fn foo2(_: Type1, _: Type1) { } @@ -52,6 +58,13 @@ pub fn foo8(_: Type3, _: Type3) { } // CHECK: define{{.*}}4foo8{{.*}}!type ![[TYPE8:[0-9]+]] !type !{{[0-9]+}} !type !{{[0-9]+}} !type !{{[0-9]+}} pub fn foo9(_: Type3, _: Type3, _: Type3) { } // CHECK: define{{.*}}4foo9{{.*}}!type ![[TYPE9:[0-9]+]] !type !{{[0-9]+}} !type !{{[0-9]+}} !type !{{[0-9]+}} +pub fn foo10(_: Type4) { } +// CHECK: define{{.*}}5foo10{{.*}}!type ![[TYPE10:[0-9]+]] !type !{{[0-9]+}} !type !{{[0-9]+}} !type !{{[0-9]+}} +pub fn foo11(_: Type4, _: Type4) { } +// CHECK: define{{.*}}5foo11{{.*}}!type ![[TYPE11:[0-9]+]] !type !{{[0-9]+}} !type !{{[0-9]+}} !type !{{[0-9]+}} +pub fn foo12(_: Type4, _: Type4, _: Type4) { } +// CHECK: define{{.*}}5foo12{{.*}}!type ![[TYPE12:[0-9]+]] !type !{{[0-9]+}} !type !{{[0-9]+}} !type !{{[0-9]+}} + // CHECK: ![[TYPE1]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_{{[[:print:]]+}}3FooE"} // CHECK: ![[TYPE2]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_{{[[:print:]]+}}3FooS_E"} @@ -62,3 +75,6 @@ pub fn foo9(_: Type3, _: Type3, _: Type3) { } // CHECK: ![[TYPE7]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_{{[[:print:]]+}}3BarE"} // CHECK: ![[TYPE8]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_{{[[:print:]]+}}3BarS_E"} // CHECK: ![[TYPE9]] = !{i64 0, !"_ZTSFvu{{[0-9]+}}NtC{{[[:print:]]+}}_{{[[:print:]]+}}3BarS_S_E"} +// CHECK: ![[TYPE10]] = !{i64 0, !"_ZTSFvPu{{[0-9]+}}NtC{{[[:print:]]+}}_{{[[:print:]]+}}5Type4E"} +// CHECK: ![[TYPE11]] = !{i64 0, !"_ZTSFvPu{{[0-9]+}}NtC{{[[:print:]]+}}_{{[[:print:]]+}}5Type4S0_E"} +// CHECK: ![[TYPE12]] = !{i64 0, !"_ZTSFvPu{{[0-9]+}}NtC{{[[:print:]]+}}_{{[[:print:]]+}}5Type4S0_S0_E"} diff --git a/tests/ui/sanitizer/cfi-self-ref.rs b/tests/ui/sanitizer/cfi-self-ref.rs new file mode 100644 index 0000000000000..32d0b10070265 --- /dev/null +++ b/tests/ui/sanitizer/cfi-self-ref.rs @@ -0,0 +1,33 @@ +// Check that encoding self-referential types works with #[repr(transparent)] + +//@ needs-sanitizer-cfi +// FIXME(#122848) Remove only-linux once OSX CFI binaries work +//@ only-linux +//@ compile-flags: --crate-type=bin -Cprefer-dynamic=off -Clto -Zsanitizer=cfi +//@ compile-flags: -C target-feature=-crt-static -C codegen-units=1 -C opt-level=0 +//@ run-pass + +use std::marker::PhantomData; + +struct X { + _x: u8, + p: PhantomData, +} + +#[repr(transparent)] +struct Y(X); + +trait Fooable { + fn foo(&self, y: Y); +} + +struct Bar; + +impl Fooable for Bar { + fn foo(&self, _: Y) {} +} + +fn main() { + let x = &Bar as &dyn Fooable; + x.foo(Y(X {_x: 0, p: PhantomData})); +} From ab92699f4a4bce54675012112693e9919ab19f54 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Sat, 23 Mar 2024 19:13:52 +1100 Subject: [PATCH 20/54] Unbox and unwrap the contents of `StatementKind::Coverage` The payload of coverage statements was historically a structure with several fields, so it was boxed to avoid bloating `StatementKind`. Now that the payload is a single relatively-small enum, we can replace `Box` with just `CoverageKind`. This patch also adds a size assertion for `StatementKind`, to avoid accidentally bloating it in the future. --- .../rustc_codegen_gcc/src/coverageinfo.rs | 4 +-- .../src/coverageinfo/mod.rs | 4 +-- .../rustc_codegen_ssa/src/mir/coverageinfo.rs | 6 ++-- .../rustc_codegen_ssa/src/mir/statement.rs | 4 +-- .../src/traits/coverageinfo.rs | 4 +-- .../src/transform/validate.rs | 3 +- compiler/rustc_middle/src/mir/pretty.rs | 4 +-- compiler/rustc_middle/src/mir/syntax.rs | 9 ++--- compiler/rustc_middle/src/mir/visit.rs | 6 ++-- compiler/rustc_mir_build/src/build/cfg.rs | 4 +-- .../rustc_mir_build/src/build/coverageinfo.rs | 4 +-- .../src/cleanup_post_borrowck.rs | 9 +++-- .../rustc_mir_transform/src/coverage/mod.rs | 7 ++-- .../rustc_mir_transform/src/coverage/query.rs | 10 +++--- .../src/coverage/spans/from_mir.rs | 34 ++++++++----------- 15 files changed, 44 insertions(+), 68 deletions(-) diff --git a/compiler/rustc_codegen_gcc/src/coverageinfo.rs b/compiler/rustc_codegen_gcc/src/coverageinfo.rs index 849e9886ef39d..4e44f78f23c26 100644 --- a/compiler/rustc_codegen_gcc/src/coverageinfo.rs +++ b/compiler/rustc_codegen_gcc/src/coverageinfo.rs @@ -1,11 +1,11 @@ use rustc_codegen_ssa::traits::CoverageInfoBuilderMethods; -use rustc_middle::mir::Coverage; +use rustc_middle::mir::coverage::CoverageKind; use rustc_middle::ty::Instance; use crate::builder::Builder; impl<'a, 'gcc, 'tcx> CoverageInfoBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tcx> { - fn add_coverage(&mut self, _instance: Instance<'tcx>, _coverage: &Coverage) { + fn add_coverage(&mut self, _instance: Instance<'tcx>, _kind: &CoverageKind) { // TODO(antoyo) } } diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs index 54f4bc0634021..85277db6d538a 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mod.rs @@ -14,7 +14,6 @@ use rustc_data_structures::fx::{FxHashMap, FxIndexMap}; use rustc_llvm::RustString; use rustc_middle::bug; use rustc_middle::mir::coverage::CoverageKind; -use rustc_middle::mir::Coverage; use rustc_middle::ty::layout::HasTyCtxt; use rustc_middle::ty::Instance; @@ -75,7 +74,7 @@ impl<'ll, 'tcx> CodegenCx<'ll, 'tcx> { impl<'tcx> CoverageInfoBuilderMethods<'tcx> for Builder<'_, '_, 'tcx> { #[instrument(level = "debug", skip(self))] - fn add_coverage(&mut self, instance: Instance<'tcx>, coverage: &Coverage) { + fn add_coverage(&mut self, instance: Instance<'tcx>, kind: &CoverageKind) { // Our caller should have already taken care of inlining subtleties, // so we can assume that counter/expression IDs in this coverage // statement are meaningful for the given instance. @@ -98,7 +97,6 @@ impl<'tcx> CoverageInfoBuilderMethods<'tcx> for Builder<'_, '_, 'tcx> { .entry(instance) .or_insert_with(|| FunctionCoverageCollector::new(instance, function_coverage_info)); - let Coverage { kind } = coverage; match *kind { CoverageKind::SpanMarker | CoverageKind::BlockMarker { .. } => unreachable!( "marker statement {kind:?} should have been removed by CleanupPostBorrowck" diff --git a/compiler/rustc_codegen_ssa/src/mir/coverageinfo.rs b/compiler/rustc_codegen_ssa/src/mir/coverageinfo.rs index ee70465966d0c..721872772287b 100644 --- a/compiler/rustc_codegen_ssa/src/mir/coverageinfo.rs +++ b/compiler/rustc_codegen_ssa/src/mir/coverageinfo.rs @@ -1,12 +1,12 @@ use crate::traits::*; -use rustc_middle::mir::Coverage; +use rustc_middle::mir::coverage::CoverageKind; use rustc_middle::mir::SourceScope; use super::FunctionCx; impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { - pub fn codegen_coverage(&self, bx: &mut Bx, coverage: &Coverage, scope: SourceScope) { + pub fn codegen_coverage(&self, bx: &mut Bx, kind: &CoverageKind, scope: SourceScope) { // Determine the instance that coverage data was originally generated for. let instance = if let Some(inlined) = scope.inlined_instance(&self.mir.source_scopes) { self.monomorphize(inlined) @@ -15,6 +15,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { }; // Handle the coverage info in a backend-specific way. - bx.add_coverage(instance, coverage); + bx.add_coverage(instance, kind); } } diff --git a/compiler/rustc_codegen_ssa/src/mir/statement.rs b/compiler/rustc_codegen_ssa/src/mir/statement.rs index ac7dfbb261dec..2188eeae42686 100644 --- a/compiler/rustc_codegen_ssa/src/mir/statement.rs +++ b/compiler/rustc_codegen_ssa/src/mir/statement.rs @@ -64,8 +64,8 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { cg_indirect_place.storage_dead(bx); } } - mir::StatementKind::Coverage(box ref coverage) => { - self.codegen_coverage(bx, coverage, statement.source_info.scope); + mir::StatementKind::Coverage(ref kind) => { + self.codegen_coverage(bx, kind, statement.source_info.scope); } mir::StatementKind::Intrinsic(box NonDivergingIntrinsic::Assume(ref op)) => { if !matches!(bx.tcx().sess.opts.optimize, OptLevel::No | OptLevel::Less) { diff --git a/compiler/rustc_codegen_ssa/src/traits/coverageinfo.rs b/compiler/rustc_codegen_ssa/src/traits/coverageinfo.rs index 7e8de0ddc5bf4..d1d813bd38922 100644 --- a/compiler/rustc_codegen_ssa/src/traits/coverageinfo.rs +++ b/compiler/rustc_codegen_ssa/src/traits/coverageinfo.rs @@ -1,5 +1,5 @@ use super::BackendTypes; -use rustc_middle::mir::Coverage; +use rustc_middle::mir::coverage::CoverageKind; use rustc_middle::ty::Instance; pub trait CoverageInfoBuilderMethods<'tcx>: BackendTypes { @@ -7,5 +7,5 @@ pub trait CoverageInfoBuilderMethods<'tcx>: BackendTypes { /// /// This can potentially be a no-op in backends that don't support /// coverage instrumentation. - fn add_coverage(&mut self, instance: Instance<'tcx>, coverage: &Coverage); + fn add_coverage(&mut self, instance: Instance<'tcx>, kind: &CoverageKind); } diff --git a/compiler/rustc_const_eval/src/transform/validate.rs b/compiler/rustc_const_eval/src/transform/validate.rs index 4bc49f906070d..00dac1343c862 100644 --- a/compiler/rustc_const_eval/src/transform/validate.rs +++ b/compiler/rustc_const_eval/src/transform/validate.rs @@ -346,8 +346,7 @@ impl<'a, 'tcx> Visitor<'tcx> for CfgChecker<'a, 'tcx> { self.fail(location, format!("explicit `{kind:?}` is forbidden")); } } - StatementKind::Coverage(coverage) => { - let kind = &coverage.kind; + StatementKind::Coverage(kind) => { if self.mir_phase >= MirPhase::Analysis(AnalysisPhase::PostCleanup) && let CoverageKind::BlockMarker { .. } | CoverageKind::SpanMarker { .. } = kind { diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs index 94751c4476157..7dcaacfc5e677 100644 --- a/compiler/rustc_middle/src/mir/pretty.rs +++ b/compiler/rustc_middle/src/mir/pretty.rs @@ -13,7 +13,7 @@ use rustc_middle::mir::interpret::{ Provenance, }; use rustc_middle::mir::visit::Visitor; -use rustc_middle::mir::{self, *}; +use rustc_middle::mir::*; use rustc_target::abi::Size; const INDENT: &str = " "; @@ -711,7 +711,7 @@ impl Debug for Statement<'_> { AscribeUserType(box (ref place, ref c_ty), ref variance) => { write!(fmt, "AscribeUserType({place:?}, {variance:?}, {c_ty:?})") } - Coverage(box mir::Coverage { ref kind }) => write!(fmt, "Coverage::{kind:?}"), + Coverage(ref kind) => write!(fmt, "Coverage::{kind:?}"), Intrinsic(box ref intrinsic) => write!(fmt, "{intrinsic}"), ConstEvalCounter => write!(fmt, "ConstEvalCounter"), Nop => write!(fmt, "nop"), diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index 752f5845afb2e..1dde65b1bae2f 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -373,7 +373,7 @@ pub enum StatementKind<'tcx> { /// /// Interpreters and codegen backends that don't support coverage instrumentation /// can usually treat this as a no-op. - Coverage(Box), + Coverage(CoverageKind), /// Denotes a call to an intrinsic that does not require an unwind path and always returns. /// This avoids adding a new block and a terminator for simple intrinsics. @@ -517,12 +517,6 @@ pub enum FakeReadCause { ForIndex, } -#[derive(Clone, Debug, PartialEq, TyEncodable, TyDecodable, Hash, HashStable)] -#[derive(TypeFoldable, TypeVisitable)] -pub struct Coverage { - pub kind: CoverageKind, -} - #[derive(Clone, Debug, PartialEq, TyEncodable, TyDecodable, Hash, HashStable)] #[derive(TypeFoldable, TypeVisitable)] pub struct CopyNonOverlapping<'tcx> { @@ -1465,5 +1459,6 @@ mod size_asserts { static_assert_size!(Place<'_>, 16); static_assert_size!(PlaceElem<'_>, 24); static_assert_size!(Rvalue<'_>, 40); + static_assert_size!(StatementKind<'_>, 16); // tidy-alphabetical-end } diff --git a/compiler/rustc_middle/src/mir/visit.rs b/compiler/rustc_middle/src/mir/visit.rs index be960669ff4d0..3835bd371d996 100644 --- a/compiler/rustc_middle/src/mir/visit.rs +++ b/compiler/rustc_middle/src/mir/visit.rs @@ -156,10 +156,10 @@ macro_rules! make_mir_visitor { fn visit_coverage( &mut self, - coverage: & $($mutability)? Coverage, + kind: & $($mutability)? coverage::CoverageKind, location: Location, ) { - self.super_coverage(coverage, location); + self.super_coverage(kind, location); } fn visit_retag( @@ -803,7 +803,7 @@ macro_rules! make_mir_visitor { } fn super_coverage(&mut self, - _coverage: & $($mutability)? Coverage, + _kind: & $($mutability)? coverage::CoverageKind, _location: Location) { } diff --git a/compiler/rustc_mir_build/src/build/cfg.rs b/compiler/rustc_mir_build/src/build/cfg.rs index 2bd0e28973101..18e45291e9a86 100644 --- a/compiler/rustc_mir_build/src/build/cfg.rs +++ b/compiler/rustc_mir_build/src/build/cfg.rs @@ -107,9 +107,7 @@ impl<'tcx> CFG<'tcx> { /// This results in more accurate coverage reports for certain kinds of /// syntax (e.g. `continue` or `if !`) that would otherwise not appear in MIR. pub(crate) fn push_coverage_span_marker(&mut self, block: BasicBlock, source_info: SourceInfo) { - let kind = StatementKind::Coverage(Box::new(Coverage { - kind: coverage::CoverageKind::SpanMarker, - })); + let kind = StatementKind::Coverage(coverage::CoverageKind::SpanMarker); let stmt = Statement { source_info, kind }; self.push(block, stmt); } diff --git a/compiler/rustc_mir_build/src/build/coverageinfo.rs b/compiler/rustc_mir_build/src/build/coverageinfo.rs index 0b8ec234dda7a..ab0043906b19f 100644 --- a/compiler/rustc_mir_build/src/build/coverageinfo.rs +++ b/compiler/rustc_mir_build/src/build/coverageinfo.rs @@ -127,9 +127,7 @@ impl Builder<'_, '_> { let marker_statement = mir::Statement { source_info, - kind: mir::StatementKind::Coverage(Box::new(mir::Coverage { - kind: CoverageKind::BlockMarker { id }, - })), + kind: mir::StatementKind::Coverage(CoverageKind::BlockMarker { id }), }; self.cfg.push(block, marker_statement); diff --git a/compiler/rustc_mir_transform/src/cleanup_post_borrowck.rs b/compiler/rustc_mir_transform/src/cleanup_post_borrowck.rs index aaf2035fc2103..da82f8de78147 100644 --- a/compiler/rustc_mir_transform/src/cleanup_post_borrowck.rs +++ b/compiler/rustc_mir_transform/src/cleanup_post_borrowck.rs @@ -18,7 +18,7 @@ use crate::MirPass; use rustc_middle::mir::coverage::CoverageKind; -use rustc_middle::mir::{Body, BorrowKind, Coverage, Rvalue, StatementKind, TerminatorKind}; +use rustc_middle::mir::{Body, BorrowKind, Rvalue, StatementKind, TerminatorKind}; use rustc_middle::ty::TyCtxt; pub struct CleanupPostBorrowck; @@ -30,12 +30,11 @@ impl<'tcx> MirPass<'tcx> for CleanupPostBorrowck { match statement.kind { StatementKind::AscribeUserType(..) | StatementKind::Assign(box (_, Rvalue::Ref(_, BorrowKind::Fake, _))) - | StatementKind::Coverage(box Coverage { + | StatementKind::Coverage( // These kinds of coverage statements are markers inserted during // MIR building, and are not needed after InstrumentCoverage. - kind: CoverageKind::BlockMarker { .. } | CoverageKind::SpanMarker { .. }, - .. - }) + CoverageKind::BlockMarker { .. } | CoverageKind::SpanMarker { .. }, + ) | StatementKind::FakeRead(..) => statement.make_nop(), _ => (), } diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs index 83189c6a50a77..ae3b1a3d1af3b 100644 --- a/compiler/rustc_mir_transform/src/coverage/mod.rs +++ b/compiler/rustc_mir_transform/src/coverage/mod.rs @@ -15,7 +15,7 @@ use crate::MirPass; use rustc_middle::mir::coverage::*; use rustc_middle::mir::{ - self, BasicBlock, BasicBlockData, Coverage, SourceInfo, Statement, StatementKind, Terminator, + self, BasicBlock, BasicBlockData, SourceInfo, Statement, StatementKind, Terminator, TerminatorKind, }; use rustc_middle::ty::TyCtxt; @@ -230,10 +230,7 @@ fn inject_statement(mir_body: &mut mir::Body<'_>, counter_kind: CoverageKind, bb debug!(" injecting statement {counter_kind:?} for {bb:?}"); let data = &mut mir_body[bb]; let source_info = data.terminator().source_info; - let statement = Statement { - source_info, - kind: StatementKind::Coverage(Box::new(Coverage { kind: counter_kind })), - }; + let statement = Statement { source_info, kind: StatementKind::Coverage(counter_kind) }; data.statements.insert(0, statement); } diff --git a/compiler/rustc_mir_transform/src/coverage/query.rs b/compiler/rustc_mir_transform/src/coverage/query.rs index 1de7b6f66a7bc..b5dd9dcc7b467 100644 --- a/compiler/rustc_mir_transform/src/coverage/query.rs +++ b/compiler/rustc_mir_transform/src/coverage/query.rs @@ -1,7 +1,7 @@ use rustc_data_structures::captures::Captures; use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags; use rustc_middle::mir::coverage::{CounterId, CoverageKind}; -use rustc_middle::mir::{Body, Coverage, CoverageIdsInfo, Statement, StatementKind}; +use rustc_middle::mir::{Body, CoverageIdsInfo, Statement, StatementKind}; use rustc_middle::query::TyCtxtAt; use rustc_middle::ty::{self, TyCtxt}; use rustc_middle::util::Providers; @@ -54,7 +54,7 @@ fn coverage_ids_info<'tcx>( let mir_body = tcx.instance_mir(instance_def); let max_counter_id = all_coverage_in_mir_body(mir_body) - .filter_map(|coverage| match coverage.kind { + .filter_map(|kind| match *kind { CoverageKind::CounterIncrement { id } => Some(id), _ => None, }) @@ -66,12 +66,10 @@ fn coverage_ids_info<'tcx>( fn all_coverage_in_mir_body<'a, 'tcx>( body: &'a Body<'tcx>, -) -> impl Iterator + Captures<'tcx> { +) -> impl Iterator + Captures<'tcx> { body.basic_blocks.iter().flat_map(|bb_data| &bb_data.statements).filter_map(|statement| { match statement.kind { - StatementKind::Coverage(box ref coverage) if !is_inlined(body, statement) => { - Some(coverage) - } + StatementKind::Coverage(ref kind) if !is_inlined(body, statement) => Some(kind), _ => None, } }) diff --git a/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs b/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs index 3f6a4156044e8..adb0c9f1929d9 100644 --- a/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs +++ b/compiler/rustc_mir_transform/src/coverage/spans/from_mir.rs @@ -187,9 +187,7 @@ fn filtered_statement_span(statement: &Statement<'_>) -> Option { // for their parent `BasicBlock`. StatementKind::StorageLive(_) | StatementKind::StorageDead(_) - // Ignore `ConstEvalCounter`s | StatementKind::ConstEvalCounter - // Ignore `Nop`s | StatementKind::Nop => None, // FIXME(#78546): MIR InstrumentCoverage - Can the source_info.span for `FakeRead` @@ -211,30 +209,28 @@ fn filtered_statement_span(statement: &Statement<'_>) -> Option { StatementKind::FakeRead(box (FakeReadCause::ForGuardBinding, _)) => None, // Retain spans from most other statements. - StatementKind::FakeRead(box (_, _)) // Not including `ForGuardBinding` + StatementKind::FakeRead(_) | StatementKind::Intrinsic(..) - | StatementKind::Coverage(box mir::Coverage { + | StatementKind::Coverage( // The purpose of `SpanMarker` is to be matched and accepted here. - kind: CoverageKind::SpanMarker - }) + CoverageKind::SpanMarker, + ) | StatementKind::Assign(_) | StatementKind::SetDiscriminant { .. } | StatementKind::Deinit(..) | StatementKind::Retag(_, _) | StatementKind::PlaceMention(..) - | StatementKind::AscribeUserType(_, _) => { - Some(statement.source_info.span) - } + | StatementKind::AscribeUserType(_, _) => Some(statement.source_info.span), - StatementKind::Coverage(box mir::Coverage { - // Block markers are used for branch coverage, so ignore them here. - kind: CoverageKind::BlockMarker {..} - }) => None, + // Block markers are used for branch coverage, so ignore them here. + StatementKind::Coverage(CoverageKind::BlockMarker { .. }) => None, - StatementKind::Coverage(box mir::Coverage { - // These coverage statements should not exist prior to coverage instrumentation. - kind: CoverageKind::CounterIncrement { .. } | CoverageKind::ExpressionUsed { .. } - }) => bug!("Unexpected coverage statement found during coverage instrumentation: {statement:?}"), + // These coverage statements should not exist prior to coverage instrumentation. + StatementKind::Coverage( + CoverageKind::CounterIncrement { .. } | CoverageKind::ExpressionUsed { .. }, + ) => bug!( + "Unexpected coverage statement found during coverage instrumentation: {statement:?}" + ), } } @@ -382,9 +378,7 @@ pub(super) fn extract_branch_mappings( // Fill out the mapping from block marker IDs to their enclosing blocks. for (bb, data) in mir_body.basic_blocks.iter_enumerated() { for statement in &data.statements { - if let StatementKind::Coverage(coverage) = &statement.kind - && let CoverageKind::BlockMarker { id } = coverage.kind - { + if let StatementKind::Coverage(CoverageKind::BlockMarker { id }) = statement.kind { block_markers[id] = Some(bb); } } From 37dbe40a7e54a873d047ae530b3a70e52ec8c030 Mon Sep 17 00:00:00 2001 From: Shoyu Vanilla Date: Sat, 23 Mar 2024 23:51:27 +0900 Subject: [PATCH 21/54] Add a regression test for #117310 --- .../tait-param-inference-issue-117310.rs | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 tests/ui/type-alias-impl-trait/tait-param-inference-issue-117310.rs diff --git a/tests/ui/type-alias-impl-trait/tait-param-inference-issue-117310.rs b/tests/ui/type-alias-impl-trait/tait-param-inference-issue-117310.rs new file mode 100644 index 0000000000000..be743e8e27003 --- /dev/null +++ b/tests/ui/type-alias-impl-trait/tait-param-inference-issue-117310.rs @@ -0,0 +1,28 @@ +//@ check-pass + +#![feature(type_alias_impl_trait)] +#![allow(dead_code)] + +use std::ops::Deref; + +trait Trait {} +impl Trait for (A, B, u8) where A: Deref, B: Deref, {} +impl Trait for (A, B, i8) {} + +type TaitSized = impl Sized; +fn def_tait1() -> TaitSized {} + +type TaitCopy = impl Copy; +fn def_tait2() -> TaitCopy {} + +fn impl_trait () {} + +fn test() { + impl_trait::<(&TaitSized, &TaitCopy, _)>(); + impl_trait::<(&TaitCopy, &TaitSized, _)>(); + + impl_trait::<(&TaitCopy, &String, _)>(); + impl_trait::<(&TaitSized, &String, _)>(); +} + +fn main() {} From 24a0d7daffed6290c287cafc3cc81e70a4ce8b29 Mon Sep 17 00:00:00 2001 From: Nilstrieb <48135649+Nilstrieb@users.noreply.github.com> Date: Sat, 23 Mar 2024 17:06:02 +0100 Subject: [PATCH 22/54] Update upload-artifact to v4 This contains a breaking change around artifact merging no longer being done. This was not relied on, so it's fine. --- .github/workflows/ci.yml | 6 +++--- .github/workflows/dependencies.yml | 4 ++-- src/ci/github-actions/ci.yml | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 767ea29d6369b..f1c87b0a76e15 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -166,7 +166,7 @@ jobs: run: src/ci/scripts/create-doc-artifacts.sh if: success() && !env.SKIP_JOB - name: upload artifacts to github - uses: actions/upload-artifact@v3 + uses: actions/upload-artifact@v4 with: name: "${{ env.DOC_ARTIFACT_NAME }}" path: obj/artifacts/doc @@ -576,7 +576,7 @@ jobs: run: src/ci/scripts/create-doc-artifacts.sh if: success() && !env.SKIP_JOB - name: upload artifacts to github - uses: actions/upload-artifact@v3 + uses: actions/upload-artifact@v4 with: name: "${{ env.DOC_ARTIFACT_NAME }}" path: obj/artifacts/doc @@ -715,7 +715,7 @@ jobs: run: src/ci/scripts/create-doc-artifacts.sh if: success() && !env.SKIP_JOB - name: upload artifacts to github - uses: actions/upload-artifact@v3 + uses: actions/upload-artifact@v4 with: name: "${{ env.DOC_ARTIFACT_NAME }}" path: obj/artifacts/doc diff --git a/.github/workflows/dependencies.yml b/.github/workflows/dependencies.yml index c182f3245e5d8..1e6c9cb8c7cc7 100644 --- a/.github/workflows/dependencies.yml +++ b/.github/workflows/dependencies.yml @@ -67,13 +67,13 @@ jobs: # Remove first line that always just says "Updating crates.io index" run: cargo update 2>&1 | sed '/crates.io index/d' | tee -a cargo_update.log - name: upload Cargo.lock artifact for use in PR - uses: actions/upload-artifact@v3 + uses: actions/upload-artifact@v4 with: name: Cargo-lock path: Cargo.lock retention-days: 1 - name: upload cargo-update log artifact for use in PR - uses: actions/upload-artifact@v3 + uses: actions/upload-artifact@v4 with: name: cargo-updates path: cargo_update.log diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml index 972ef35933749..80e2357440432 100644 --- a/src/ci/github-actions/ci.yml +++ b/src/ci/github-actions/ci.yml @@ -261,7 +261,7 @@ x--expand-yaml-anchors--remove: <<: *step - name: upload artifacts to github - uses: actions/upload-artifact@v3 + uses: actions/upload-artifact@v4 with: # name is set in previous step name: ${{ env.DOC_ARTIFACT_NAME }} From 7967915c7b456d59fd963260822d3cf583969948 Mon Sep 17 00:00:00 2001 From: Matthew Maurer Date: Fri, 15 Mar 2024 19:45:46 +0000 Subject: [PATCH 23/54] CFI: Use Instance at callsites We already use `Instance` at declaration sites when available to glean additional information about possible abstractions of the type in use. This does the same when possible at callsites as well. The primary purpose of this change is to allow CFI to alter how it generates type information for indirect calls through `Virtual` instances. --- compiler/rustc_codegen_gcc/src/asm.rs | 2 +- compiler/rustc_codegen_gcc/src/builder.rs | 6 ++- .../rustc_codegen_gcc/src/intrinsic/mod.rs | 11 ++--- compiler/rustc_codegen_llvm/src/asm.rs | 6 +-- compiler/rustc_codegen_llvm/src/builder.rs | 41 +++++++++++++------ compiler/rustc_codegen_llvm/src/intrinsic.rs | 39 ++++++++++-------- compiler/rustc_codegen_ssa/src/base.rs | 19 ++++++--- compiler/rustc_codegen_ssa/src/mir/block.rs | 19 ++++++--- compiler/rustc_codegen_ssa/src/mir/rvalue.rs | 2 +- compiler/rustc_codegen_ssa/src/size_of_val.rs | 10 ++++- .../rustc_codegen_ssa/src/traits/builder.rs | 4 +- 11 files changed, 105 insertions(+), 54 deletions(-) diff --git a/compiler/rustc_codegen_gcc/src/asm.rs b/compiler/rustc_codegen_gcc/src/asm.rs index 9b679019e96ce..06b14a1f118a3 100644 --- a/compiler/rustc_codegen_gcc/src/asm.rs +++ b/compiler/rustc_codegen_gcc/src/asm.rs @@ -541,7 +541,7 @@ impl<'a, 'gcc, 'tcx> AsmBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tcx> { let builtin_unreachable: RValue<'gcc> = unsafe { std::mem::transmute(builtin_unreachable) }; - self.call(self.type_void(), None, None, builtin_unreachable, &[], None); + self.call(self.type_void(), None, None, builtin_unreachable, &[], None, None); } // Write results to outputs. diff --git a/compiler/rustc_codegen_gcc/src/builder.rs b/compiler/rustc_codegen_gcc/src/builder.rs index f5cda81f6ab86..43cc46cfe682f 100644 --- a/compiler/rustc_codegen_gcc/src/builder.rs +++ b/compiler/rustc_codegen_gcc/src/builder.rs @@ -25,7 +25,7 @@ use rustc_middle::ty::layout::{ FnAbiError, FnAbiOfHelpers, FnAbiRequest, HasParamEnv, HasTyCtxt, LayoutError, LayoutOfHelpers, TyAndLayout, }; -use rustc_middle::ty::{ParamEnv, Ty, TyCtxt}; +use rustc_middle::ty::{ParamEnv, Ty, TyCtxt, Instance}; use rustc_span::def_id::DefId; use rustc_span::Span; use rustc_target::abi::{ @@ -592,12 +592,13 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> { then: Block<'gcc>, catch: Block<'gcc>, _funclet: Option<&Funclet>, + instance: Option>, ) -> RValue<'gcc> { let try_block = self.current_func().new_block("try"); let current_block = self.block.clone(); self.block = try_block; - let call = self.call(typ, fn_attrs, None, func, args, None); // TODO(antoyo): use funclet here? + let call = self.call(typ, fn_attrs, None, func, args, None, instance); // TODO(antoyo): use funclet here? self.block = current_block; let return_value = @@ -1667,6 +1668,7 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> { func: RValue<'gcc>, args: &[RValue<'gcc>], funclet: Option<&Funclet>, + _instance: Option>, ) -> RValue<'gcc> { // FIXME(antoyo): remove when having a proper API. let gcc_func = unsafe { std::mem::transmute(func) }; diff --git a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs index a6c8b72e851b2..cebd45c09aa39 100644 --- a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs +++ b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs @@ -133,6 +133,7 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'a, 'gcc, 'tcx> { func, &args.iter().map(|arg| arg.immediate()).collect::>(), None, + None, ) } sym::likely => self.expect(args[0].immediate(), true), @@ -401,7 +402,7 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'a, 'gcc, 'tcx> { fn abort(&mut self) { let func = self.context.get_builtin_function("abort"); let func: RValue<'gcc> = unsafe { std::mem::transmute(func) }; - self.call(self.type_void(), None, None, func, &[], None); + self.call(self.type_void(), None, None, func, &[], None, None); } fn assume(&mut self, value: Self::Value) { @@ -1103,7 +1104,7 @@ fn try_intrinsic<'a, 'b, 'gcc, 'tcx>( dest: RValue<'gcc>, ) { if bx.sess().panic_strategy() == PanicStrategy::Abort { - bx.call(bx.type_void(), None, None, try_func, &[data], None); + bx.call(bx.type_void(), None, None, try_func, &[data], None, None); // Return 0 unconditionally from the intrinsic call; // we can never unwind. let ret_align = bx.tcx.data_layout.i32_align.abi; @@ -1177,21 +1178,21 @@ fn codegen_gnu_try<'gcc>( let zero = bx.cx.context.new_rvalue_zero(bx.int_type); let ptr = bx.cx.context.new_call(None, eh_pointer_builtin, &[zero]); let catch_ty = bx.type_func(&[bx.type_i8p(), bx.type_i8p()], bx.type_void()); - bx.call(catch_ty, None, None, catch_func, &[data, ptr], None); + bx.call(catch_ty, None, None, catch_func, &[data, ptr], None, None); bx.ret(bx.const_i32(1)); // NOTE: the blocks must be filled before adding the try/catch, otherwise gcc will not // generate a try/catch. // FIXME(antoyo): add a check in the libgccjit API to prevent this. bx.switch_to_block(current_block); - bx.invoke(try_func_ty, None, None, try_func, &[data], then, catch, None); + bx.invoke(try_func_ty, None, None, try_func, &[data], then, catch, None, None); }); let func = unsafe { std::mem::transmute(func) }; // Note that no invoke is used here because by definition this function // can't panic (that's what it's catching). - let ret = bx.call(llty, None, None, func, &[try_func, data, catch_func], None); + let ret = bx.call(llty, None, None, func, &[try_func, data, catch_func], None, None); let i32_align = bx.tcx().data_layout.i32_align.abi; bx.store(ret, dest, i32_align); } diff --git a/compiler/rustc_codegen_llvm/src/asm.rs b/compiler/rustc_codegen_llvm/src/asm.rs index 74539d4d49570..500904ce18805 100644 --- a/compiler/rustc_codegen_llvm/src/asm.rs +++ b/compiler/rustc_codegen_llvm/src/asm.rs @@ -466,11 +466,11 @@ pub(crate) fn inline_asm_call<'ll>( let call = if !labels.is_empty() { assert!(catch_funclet.is_none()); - bx.callbr(fty, None, None, v, inputs, dest.unwrap(), labels, None) + bx.callbr(fty, None, None, v, inputs, dest.unwrap(), labels, None, None) } else if let Some((catch, funclet)) = catch_funclet { - bx.invoke(fty, None, None, v, inputs, dest.unwrap(), catch, funclet) + bx.invoke(fty, None, None, v, inputs, dest.unwrap(), catch, funclet, None) } else { - bx.call(fty, None, None, v, inputs, None) + bx.call(fty, None, None, v, inputs, None, None) }; // Store mark in a metadata node so we can map LLVM errors diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index 63e59ea13fc35..a5a5ae73d77a1 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -19,9 +19,12 @@ use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs; use rustc_middle::ty::layout::{ FnAbiError, FnAbiOfHelpers, FnAbiRequest, LayoutError, LayoutOfHelpers, TyAndLayout, }; -use rustc_middle::ty::{self, Ty, TyCtxt}; +use rustc_middle::ty::{self, Instance, Ty, TyCtxt}; use rustc_span::Span; -use rustc_symbol_mangling::typeid::{kcfi_typeid_for_fnabi, typeid_for_fnabi, TypeIdOptions}; +use rustc_symbol_mangling::typeid::{ + kcfi_typeid_for_fnabi, kcfi_typeid_for_instance, typeid_for_fnabi, typeid_for_instance, + TypeIdOptions, +}; use rustc_target::abi::{self, call::FnAbi, Align, Size, WrappingRange}; use rustc_target::spec::{HasTargetSpec, SanitizerSet, Target}; use smallvec::SmallVec; @@ -221,6 +224,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { then: &'ll BasicBlock, catch: &'ll BasicBlock, funclet: Option<&Funclet<'ll>>, + instance: Option>, ) -> &'ll Value { debug!("invoke {:?} with args ({:?})", llfn, args); @@ -233,10 +237,10 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { } // Emit CFI pointer type membership test - self.cfi_type_test(fn_attrs, fn_abi, llfn); + self.cfi_type_test(fn_attrs, fn_abi, instance, llfn); // Emit KCFI operand bundle - let kcfi_bundle = self.kcfi_operand_bundle(fn_attrs, fn_abi, llfn); + let kcfi_bundle = self.kcfi_operand_bundle(fn_attrs, fn_abi, instance, llfn); let kcfi_bundle = kcfi_bundle.as_ref().map(|b| &*b.raw); if let Some(kcfi_bundle) = kcfi_bundle { bundles.push(kcfi_bundle); @@ -1231,6 +1235,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { llfn: &'ll Value, args: &[&'ll Value], funclet: Option<&Funclet<'ll>>, + instance: Option>, ) -> &'ll Value { debug!("call {:?} with args ({:?})", llfn, args); @@ -1243,10 +1248,10 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { } // Emit CFI pointer type membership test - self.cfi_type_test(fn_attrs, fn_abi, llfn); + self.cfi_type_test(fn_attrs, fn_abi, instance, llfn); // Emit KCFI operand bundle - let kcfi_bundle = self.kcfi_operand_bundle(fn_attrs, fn_abi, llfn); + let kcfi_bundle = self.kcfi_operand_bundle(fn_attrs, fn_abi, instance, llfn); let kcfi_bundle = kcfi_bundle.as_ref().map(|b| &*b.raw); if let Some(kcfi_bundle) = kcfi_bundle { bundles.push(kcfi_bundle); @@ -1468,7 +1473,7 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { pub(crate) fn call_intrinsic(&mut self, intrinsic: &str, args: &[&'ll Value]) -> &'ll Value { let (ty, f) = self.cx.get_intrinsic(intrinsic); - self.call(ty, None, None, f, args, None) + self.call(ty, None, None, f, args, None, None) } fn call_lifetime_intrinsic(&mut self, intrinsic: &str, ptr: &'ll Value, size: Size) { @@ -1526,7 +1531,7 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { format!("llvm.{instr}.sat.i{int_width}.f{float_width}") }; let f = self.declare_cfn(&name, llvm::UnnamedAddr::No, self.type_func(&[src_ty], dest_ty)); - self.call(self.type_func(&[src_ty], dest_ty), None, None, f, &[val], None) + self.call(self.type_func(&[src_ty], dest_ty), None, None, f, &[val], None, None) } pub(crate) fn landing_pad( @@ -1554,6 +1559,7 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { default_dest: &'ll BasicBlock, indirect_dest: &[&'ll BasicBlock], funclet: Option<&Funclet<'ll>>, + instance: Option>, ) -> &'ll Value { debug!("invoke {:?} with args ({:?})", llfn, args); @@ -1566,10 +1572,10 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { } // Emit CFI pointer type membership test - self.cfi_type_test(fn_attrs, fn_abi, llfn); + self.cfi_type_test(fn_attrs, fn_abi, instance, llfn); // Emit KCFI operand bundle - let kcfi_bundle = self.kcfi_operand_bundle(fn_attrs, fn_abi, llfn); + let kcfi_bundle = self.kcfi_operand_bundle(fn_attrs, fn_abi, instance, llfn); let kcfi_bundle = kcfi_bundle.as_ref().map(|b| &*b.raw); if let Some(kcfi_bundle) = kcfi_bundle { bundles.push(kcfi_bundle); @@ -1601,6 +1607,7 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { &mut self, fn_attrs: Option<&CodegenFnAttrs>, fn_abi: Option<&FnAbi<'tcx, Ty<'tcx>>>, + instance: Option>, llfn: &'ll Value, ) { let is_indirect_call = unsafe { llvm::LLVMRustIsNonGVFunctionPointerTy(llfn) }; @@ -1622,7 +1629,11 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { options.insert(TypeIdOptions::NORMALIZE_INTEGERS); } - let typeid = typeid_for_fnabi(self.tcx, fn_abi, options); + let typeid = if let Some(instance) = instance { + typeid_for_instance(self.tcx, &instance, options) + } else { + typeid_for_fnabi(self.tcx, fn_abi, options) + }; let typeid_metadata = self.cx.typeid_metadata(typeid).unwrap(); // Test whether the function pointer is associated with the type identifier. @@ -1644,6 +1655,7 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { &mut self, fn_attrs: Option<&CodegenFnAttrs>, fn_abi: Option<&FnAbi<'tcx, Ty<'tcx>>>, + instance: Option>, llfn: &'ll Value, ) -> Option> { let is_indirect_call = unsafe { llvm::LLVMRustIsNonGVFunctionPointerTy(llfn) }; @@ -1665,7 +1677,12 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { options.insert(TypeIdOptions::NORMALIZE_INTEGERS); } - let kcfi_typeid = kcfi_typeid_for_fnabi(self.tcx, fn_abi, options); + let kcfi_typeid = if let Some(instance) = instance { + kcfi_typeid_for_instance(self.tcx, &instance, options) + } else { + kcfi_typeid_for_fnabi(self.tcx, fn_abi, options) + }; + Some(llvm::OperandBundleDef::new("kcfi", &[self.const_u32(kcfi_typeid)])) } else { None diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs index 2409b2e78d736..ab135e3ed6444 100644 --- a/compiler/rustc_codegen_llvm/src/intrinsic.rs +++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs @@ -181,6 +181,7 @@ impl<'ll, 'tcx> IntrinsicCallMethods<'tcx> for Builder<'_, 'll, 'tcx> { simple_fn, &args.iter().map(|arg| arg.immediate()).collect::>(), None, + Some(instance), ) } sym::likely => { @@ -539,7 +540,7 @@ fn catch_unwind_intrinsic<'ll>( ) { if bx.sess().panic_strategy() == PanicStrategy::Abort { let try_func_ty = bx.type_func(&[bx.type_ptr()], bx.type_void()); - bx.call(try_func_ty, None, None, try_func, &[data], None); + bx.call(try_func_ty, None, None, try_func, &[data], None, None); // Return 0 unconditionally from the intrinsic call; // we can never unwind. let ret_align = bx.tcx().data_layout.i32_align.abi; @@ -640,7 +641,7 @@ fn codegen_msvc_try<'ll>( let ptr_align = bx.tcx().data_layout.pointer_align.abi; let slot = bx.alloca(bx.type_ptr(), ptr_align); let try_func_ty = bx.type_func(&[bx.type_ptr()], bx.type_void()); - bx.invoke(try_func_ty, None, None, try_func, &[data], normal, catchswitch, None); + bx.invoke(try_func_ty, None, None, try_func, &[data], normal, catchswitch, None, None); bx.switch_to_block(normal); bx.ret(bx.const_i32(0)); @@ -684,7 +685,7 @@ fn codegen_msvc_try<'ll>( let funclet = bx.catch_pad(cs, &[tydesc, flags, slot]); let ptr = bx.load(bx.type_ptr(), slot, ptr_align); let catch_ty = bx.type_func(&[bx.type_ptr(), bx.type_ptr()], bx.type_void()); - bx.call(catch_ty, None, None, catch_func, &[data, ptr], Some(&funclet)); + bx.call(catch_ty, None, None, catch_func, &[data, ptr], Some(&funclet), None); bx.catch_ret(&funclet, caught); // The flag value of 64 indicates a "catch-all". @@ -692,7 +693,7 @@ fn codegen_msvc_try<'ll>( let flags = bx.const_i32(64); let null = bx.const_null(bx.type_ptr()); let funclet = bx.catch_pad(cs, &[null, flags, null]); - bx.call(catch_ty, None, None, catch_func, &[data, null], Some(&funclet)); + bx.call(catch_ty, None, None, catch_func, &[data, null], Some(&funclet), None); bx.catch_ret(&funclet, caught); bx.switch_to_block(caught); @@ -701,7 +702,7 @@ fn codegen_msvc_try<'ll>( // Note that no invoke is used here because by definition this function // can't panic (that's what it's catching). - let ret = bx.call(llty, None, None, llfn, &[try_func, data, catch_func], None); + let ret = bx.call(llty, None, None, llfn, &[try_func, data, catch_func], None, None); let i32_align = bx.tcx().data_layout.i32_align.abi; bx.store(ret, dest, i32_align); } @@ -750,7 +751,7 @@ fn codegen_wasm_try<'ll>( // } // let try_func_ty = bx.type_func(&[bx.type_ptr()], bx.type_void()); - bx.invoke(try_func_ty, None, None, try_func, &[data], normal, catchswitch, None); + bx.invoke(try_func_ty, None, None, try_func, &[data], normal, catchswitch, None, None); bx.switch_to_block(normal); bx.ret(bx.const_i32(0)); @@ -766,7 +767,7 @@ fn codegen_wasm_try<'ll>( let _sel = bx.call_intrinsic("llvm.wasm.get.ehselector", &[funclet.cleanuppad()]); let catch_ty = bx.type_func(&[bx.type_ptr(), bx.type_ptr()], bx.type_void()); - bx.call(catch_ty, None, None, catch_func, &[data, ptr], Some(&funclet)); + bx.call(catch_ty, None, None, catch_func, &[data, ptr], Some(&funclet), None); bx.catch_ret(&funclet, caught); bx.switch_to_block(caught); @@ -775,7 +776,7 @@ fn codegen_wasm_try<'ll>( // Note that no invoke is used here because by definition this function // can't panic (that's what it's catching). - let ret = bx.call(llty, None, None, llfn, &[try_func, data, catch_func], None); + let ret = bx.call(llty, None, None, llfn, &[try_func, data, catch_func], None, None); let i32_align = bx.tcx().data_layout.i32_align.abi; bx.store(ret, dest, i32_align); } @@ -818,7 +819,7 @@ fn codegen_gnu_try<'ll>( let data = llvm::get_param(bx.llfn(), 1); let catch_func = llvm::get_param(bx.llfn(), 2); let try_func_ty = bx.type_func(&[bx.type_ptr()], bx.type_void()); - bx.invoke(try_func_ty, None, None, try_func, &[data], then, catch, None); + bx.invoke(try_func_ty, None, None, try_func, &[data], then, catch, None, None); bx.switch_to_block(then); bx.ret(bx.const_i32(0)); @@ -836,13 +837,13 @@ fn codegen_gnu_try<'ll>( bx.add_clause(vals, tydesc); let ptr = bx.extract_value(vals, 0); let catch_ty = bx.type_func(&[bx.type_ptr(), bx.type_ptr()], bx.type_void()); - bx.call(catch_ty, None, None, catch_func, &[data, ptr], None); + bx.call(catch_ty, None, None, catch_func, &[data, ptr], None, None); bx.ret(bx.const_i32(1)); }); // Note that no invoke is used here because by definition this function // can't panic (that's what it's catching). - let ret = bx.call(llty, None, None, llfn, &[try_func, data, catch_func], None); + let ret = bx.call(llty, None, None, llfn, &[try_func, data, catch_func], None, None); let i32_align = bx.tcx().data_layout.i32_align.abi; bx.store(ret, dest, i32_align); } @@ -882,7 +883,7 @@ fn codegen_emcc_try<'ll>( let data = llvm::get_param(bx.llfn(), 1); let catch_func = llvm::get_param(bx.llfn(), 2); let try_func_ty = bx.type_func(&[bx.type_ptr()], bx.type_void()); - bx.invoke(try_func_ty, None, None, try_func, &[data], then, catch, None); + bx.invoke(try_func_ty, None, None, try_func, &[data], then, catch, None, None); bx.switch_to_block(then); bx.ret(bx.const_i32(0)); @@ -920,13 +921,13 @@ fn codegen_emcc_try<'ll>( bx.store(is_rust_panic, catch_data_1, i8_align); let catch_ty = bx.type_func(&[bx.type_ptr(), bx.type_ptr()], bx.type_void()); - bx.call(catch_ty, None, None, catch_func, &[data, catch_data], None); + bx.call(catch_ty, None, None, catch_func, &[data, catch_data], None, None); bx.ret(bx.const_i32(1)); }); // Note that no invoke is used here because by definition this function // can't panic (that's what it's catching). - let ret = bx.call(llty, None, None, llfn, &[try_func, data, catch_func], None); + let ret = bx.call(llty, None, None, llfn, &[try_func, data, catch_func], None, None); let i32_align = bx.tcx().data_layout.i32_align.abi; bx.store(ret, dest, i32_align); } @@ -1439,6 +1440,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>( f, &args.iter().map(|arg| arg.immediate()).collect::>(), None, + None, ); Ok(c) } @@ -1607,6 +1609,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>( f, &[args[1].immediate(), alignment, mask, args[0].immediate()], None, + None, ); return Ok(v); } @@ -1706,6 +1709,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>( f, &[args[1].immediate(), alignment, mask, args[2].immediate()], None, + None, ); return Ok(v); } @@ -1799,6 +1803,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>( f, &[args[2].immediate(), args[1].immediate(), alignment, mask], None, + None, ); return Ok(v); } @@ -1904,6 +1909,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>( f, &[args[0].immediate(), args[1].immediate(), alignment, mask], None, + None, ); return Ok(v); } @@ -2352,11 +2358,12 @@ fn generic_simd_intrinsic<'ll, 'tcx>( f, &[args[0].immediate(), bx.const_int(bx.type_i1(), 0)], None, + None, )) } else { let fn_ty = bx.type_func(&[vec_ty], vec_ty); let f = bx.declare_cfn(llvm_intrinsic, llvm::UnnamedAddr::No, fn_ty); - Ok(bx.call(fn_ty, None, None, f, &[args[0].immediate()], None)) + Ok(bx.call(fn_ty, None, None, f, &[args[0].immediate()], None, None)) }; } @@ -2409,7 +2416,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>( let fn_ty = bx.type_func(&[vec_ty, vec_ty], vec_ty); let f = bx.declare_cfn(llvm_intrinsic, llvm::UnnamedAddr::No, fn_ty); - let v = bx.call(fn_ty, None, None, f, &[lhs, rhs], None); + let v = bx.call(fn_ty, None, None, f, &[lhs, rhs], None, None); return Ok(v); } diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index 13809ef72ec7b..f7f2bfca838ea 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -462,27 +462,34 @@ pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( let ptr_ty = cx.type_ptr(); let (arg_argc, arg_argv) = get_argc_argv(cx, &mut bx); - let (start_fn, start_ty, args) = if let EntryFnType::Main { sigpipe } = entry_type { + let (start_fn, start_ty, args, instance) = if let EntryFnType::Main { sigpipe } = entry_type + { let start_def_id = cx.tcx().require_lang_item(LangItem::Start, None); - let start_fn = cx.get_fn_addr(ty::Instance::expect_resolve( + let start_instance = ty::Instance::expect_resolve( cx.tcx(), ty::ParamEnv::reveal_all(), start_def_id, cx.tcx().mk_args(&[main_ret_ty.into()]), - )); + ); + let start_fn = cx.get_fn_addr(start_instance); let i8_ty = cx.type_i8(); let arg_sigpipe = bx.const_u8(sigpipe); let start_ty = cx.type_func(&[cx.val_ty(rust_main), isize_ty, ptr_ty, i8_ty], isize_ty); - (start_fn, start_ty, vec![rust_main, arg_argc, arg_argv, arg_sigpipe]) + ( + start_fn, + start_ty, + vec![rust_main, arg_argc, arg_argv, arg_sigpipe], + Some(start_instance), + ) } else { debug!("using user-defined start fn"); let start_ty = cx.type_func(&[isize_ty, ptr_ty], isize_ty); - (rust_main, start_ty, vec![arg_argc, arg_argv]) + (rust_main, start_ty, vec![arg_argc, arg_argv], None) }; - let result = bx.call(start_ty, None, None, start_fn, &args, None); + let result = bx.call(start_ty, None, None, start_fn, &args, None, instance); if cx.sess().target.os.contains("uefi") { bx.ret(result); } else { diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index dcc27a4f0e568..8c668597a43b3 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -232,6 +232,7 @@ impl<'a, 'tcx> TerminatorCodegenHelper<'tcx> { ret_llbb, unwind_block, self.funclet(fx), + instance, ); if fx.mir[self.bb].is_cleanup { bx.apply_attrs_to_cleanup_callsite(invokeret); @@ -247,7 +248,8 @@ impl<'a, 'tcx> TerminatorCodegenHelper<'tcx> { } MergingSucc::False } else { - let llret = bx.call(fn_ty, fn_attrs, Some(fn_abi), fn_ptr, llargs, self.funclet(fx)); + let llret = + bx.call(fn_ty, fn_attrs, Some(fn_abi), fn_ptr, llargs, self.funclet(fx), instance); if fx.mir[self.bb].is_cleanup { bx.apply_attrs_to_cleanup_callsite(llret); } @@ -502,7 +504,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { let ty = location.ty(self.mir, bx.tcx()).ty; let ty = self.monomorphize(ty); let drop_fn = Instance::resolve_drop_in_place(bx.tcx(), ty); - let instance = drop_fn.clone(); if let ty::InstanceDef::DropGlue(_, None) = drop_fn.def { // we don't actually need to drop anything. @@ -518,7 +519,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { args1 = [place.llval]; &args1[..] }; - let (drop_fn, fn_abi) = + let (drop_fn, fn_abi, drop_instance) = match ty.kind() { // FIXME(eddyb) perhaps move some of this logic into // `Instance::resolve_drop_in_place`? @@ -550,6 +551,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { meth::VirtualIndex::from_index(ty::COMMON_VTABLE_ENTRIES_DROPINPLACE) .get_fn(bx, vtable, ty, fn_abi), fn_abi, + virtual_drop, ) } ty::Dynamic(_, _, ty::DynStar) => { @@ -592,9 +594,14 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { meth::VirtualIndex::from_index(ty::COMMON_VTABLE_ENTRIES_DROPINPLACE) .get_fn(bx, meta.immediate(), ty, fn_abi), fn_abi, + virtual_drop, ) } - _ => (bx.get_fn_addr(drop_fn), bx.fn_abi_of_instance(drop_fn, ty::List::empty())), + _ => ( + bx.get_fn_addr(drop_fn), + bx.fn_abi_of_instance(drop_fn, ty::List::empty()), + drop_fn, + ), }; helper.do_call( self, @@ -605,7 +612,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { Some((ReturnDest::Nothing, target)), unwind, &[], - Some(instance), + Some(drop_instance), mergeable_succ, ) } @@ -1699,7 +1706,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { } else { let fn_ty = bx.fn_decl_backend_type(fn_abi); - let llret = bx.call(fn_ty, None, Some(fn_abi), fn_ptr, &[], funclet.as_ref()); + let llret = bx.call(fn_ty, None, Some(fn_abi), fn_ptr, &[], funclet.as_ref(), None); bx.apply_attrs_to_cleanup_callsite(llret); } diff --git a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs index 15f2e0e56d86d..8abbbe2bfb9e0 100644 --- a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs +++ b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs @@ -710,7 +710,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { } else { None }; - bx.call(fn_ty, fn_attrs, Some(fn_abi), fn_ptr, &[], None) + bx.call(fn_ty, fn_attrs, Some(fn_abi), fn_ptr, &[], None, Some(instance)) } else { bx.get_static(def_id) }; diff --git a/compiler/rustc_codegen_ssa/src/size_of_val.rs b/compiler/rustc_codegen_ssa/src/size_of_val.rs index e2e95cede60a5..c250cc2682323 100644 --- a/compiler/rustc_codegen_ssa/src/size_of_val.rs +++ b/compiler/rustc_codegen_ssa/src/size_of_val.rs @@ -70,7 +70,15 @@ pub fn size_and_align_of_dst<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( // (But we are in good company, this code is duplicated plenty of times.) let fn_ty = bx.fn_decl_backend_type(fn_abi); - bx.call(fn_ty, /* fn_attrs */ None, Some(fn_abi), llfn, &[msg.0, msg.1], None); + bx.call( + fn_ty, + /* fn_attrs */ None, + Some(fn_abi), + llfn, + &[msg.0, msg.1], + None, + None, + ); // This function does not return so we can now return whatever we want. let size = bx.const_usize(layout.size.bytes()); diff --git a/compiler/rustc_codegen_ssa/src/traits/builder.rs b/compiler/rustc_codegen_ssa/src/traits/builder.rs index 7bc9dee3a8955..6c8dcc5b69001 100644 --- a/compiler/rustc_codegen_ssa/src/traits/builder.rs +++ b/compiler/rustc_codegen_ssa/src/traits/builder.rs @@ -17,7 +17,7 @@ use crate::MemFlags; use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs; use rustc_middle::ty::layout::{HasParamEnv, TyAndLayout}; -use rustc_middle::ty::Ty; +use rustc_middle::ty::{Instance, Ty}; use rustc_session::config::OptLevel; use rustc_span::Span; use rustc_target::abi::call::FnAbi; @@ -82,6 +82,7 @@ pub trait BuilderMethods<'a, 'tcx>: then: Self::BasicBlock, catch: Self::BasicBlock, funclet: Option<&Self::Funclet>, + instance: Option>, ) -> Self::Value; fn unreachable(&mut self); @@ -389,6 +390,7 @@ pub trait BuilderMethods<'a, 'tcx>: llfn: Self::Value, args: &[Self::Value], funclet: Option<&Self::Funclet>, + instance: Option>, ) -> Self::Value; fn zext(&mut self, val: Self::Value, dest_ty: Self::Type) -> Self::Value; From f434c27067085d72c7770da3b6d4e0bc316fd267 Mon Sep 17 00:00:00 2001 From: Matthew Maurer Date: Fri, 15 Mar 2024 18:44:40 +0000 Subject: [PATCH 24/54] CFI: Strip auto traits off Self for virtual calls Additional trait bounds beyond the principal trait and its implications are not possible in the vtable. This means that if a receiver is `&dyn Foo + Send`, the function will only be expecting `&dyn Foo`. This strips those auto traits off before CFI encoding. --- compiler/rustc_symbol_mangling/src/typeid.rs | 4 +-- .../src/typeid/typeid_itanium_cxx_abi.rs | 28 +++++++++++++++++-- tests/ui/sanitizer/cfi-virtual-auto.rs | 22 +++++++++++++++ 3 files changed, 50 insertions(+), 4 deletions(-) create mode 100644 tests/ui/sanitizer/cfi-virtual-auto.rs diff --git a/compiler/rustc_symbol_mangling/src/typeid.rs b/compiler/rustc_symbol_mangling/src/typeid.rs index e8763e49e624b..3bf564a4a16dd 100644 --- a/compiler/rustc_symbol_mangling/src/typeid.rs +++ b/compiler/rustc_symbol_mangling/src/typeid.rs @@ -36,7 +36,7 @@ pub fn typeid_for_instance<'tcx>( instance: &Instance<'tcx>, options: TypeIdOptions, ) -> String { - typeid_itanium_cxx_abi::typeid_for_instance(tcx, instance, options) + typeid_itanium_cxx_abi::typeid_for_instance(tcx, *instance, options) } /// Returns a KCFI type metadata identifier for the specified FnAbi. @@ -61,6 +61,6 @@ pub fn kcfi_typeid_for_instance<'tcx>( // A KCFI type metadata identifier is a 32-bit constant produced by taking the lower half of the // xxHash64 of the type metadata identifier. (See llvm/llvm-project@cff5bef.) let mut hash: XxHash64 = Default::default(); - hash.write(typeid_itanium_cxx_abi::typeid_for_instance(tcx, instance, options).as_bytes()); + hash.write(typeid_itanium_cxx_abi::typeid_for_instance(tcx, *instance, options).as_bytes()); hash.finish() as u32 } diff --git a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs index 07a382d161d74..813d641995531 100644 --- a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs +++ b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs @@ -1088,11 +1088,15 @@ pub fn typeid_for_fnabi<'tcx>( /// vendor extended type qualifiers and types for Rust types that are not used at the FFI boundary. pub fn typeid_for_instance<'tcx>( tcx: TyCtxt<'tcx>, - instance: &Instance<'tcx>, + mut instance: Instance<'tcx>, options: TypeIdOptions, ) -> String { + if matches!(instance.def, ty::InstanceDef::Virtual(..)) { + instance.args = strip_receiver_auto(tcx, instance.args) + } + let fn_abi = tcx - .fn_abi_of_instance(tcx.param_env(instance.def_id()).and((*instance, ty::List::empty()))) + .fn_abi_of_instance(tcx.param_env(instance.def_id()).and((instance, ty::List::empty()))) .unwrap_or_else(|instance| { bug!("typeid_for_instance: couldn't get fn_abi of instance {:?}", instance) }); @@ -1138,3 +1142,23 @@ pub fn typeid_for_instance<'tcx>( typeid_for_fnabi(tcx, fn_abi, options) } + +fn strip_receiver_auto<'tcx>( + tcx: TyCtxt<'tcx>, + args: ty::GenericArgsRef<'tcx>, +) -> ty::GenericArgsRef<'tcx> { + let ty = args.type_at(0); + let ty::Dynamic(preds, lifetime, kind) = ty.kind() else { + bug!("Tried to strip auto traits from non-dynamic type {ty}"); + }; + let filtered_preds = + if preds.principal().is_some() { + tcx.mk_poly_existential_predicates_from_iter(preds.into_iter().filter(|pred| { + !matches!(pred.skip_binder(), ty::ExistentialPredicate::AutoTrait(..)) + })) + } else { + ty::List::empty() + }; + let new_rcvr = Ty::new_dynamic(tcx, filtered_preds, *lifetime, *kind); + tcx.mk_args_trait(new_rcvr, args.into_iter().skip(1)) +} diff --git a/tests/ui/sanitizer/cfi-virtual-auto.rs b/tests/ui/sanitizer/cfi-virtual-auto.rs new file mode 100644 index 0000000000000..7a0c246a41221 --- /dev/null +++ b/tests/ui/sanitizer/cfi-virtual-auto.rs @@ -0,0 +1,22 @@ +// Tests that calling a trait object method on a trait object with additional auto traits works. + +//@ needs-sanitizer-cfi +// FIXME(#122848) Remove only-linux once OSX CFI binaries work +//@ only-linux +//@ compile-flags: --crate-type=bin -Cprefer-dynamic=off -Clto -Zsanitizer=cfi +//@ compile-flags: -C target-feature=-crt-static -C codegen-units=1 -C opt-level=0 +//@ run-pass + +trait Foo { + fn foo(&self); +} + +struct Bar; +impl Foo for Bar { + fn foo(&self) {} +} + +pub fn main() { + let x: &(dyn Foo + Send) = &Bar; + x.foo(); +} From 894555ff8ed077a7bf3d9738888a456c6c763163 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E8=AE=B8=E6=9D=B0=E5=8F=8B=20Jieyou=20Xu=20=28Joe=29?= Date: Sat, 23 Mar 2024 20:09:51 +0000 Subject: [PATCH 25/54] Track run-make-support lib in common inputs stamp --- src/tools/compiletest/src/lib.rs | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/tools/compiletest/src/lib.rs b/src/tools/compiletest/src/lib.rs index ef02e7fcb4abb..b791b38379f9c 100644 --- a/src/tools/compiletest/src/lib.rs +++ b/src/tools/compiletest/src/lib.rs @@ -609,6 +609,8 @@ fn common_inputs_stamp(config: &Config) -> Stamp { stamp.add_path(&rust_src_dir.join("src/etc/htmldocck.py")); } + stamp.add_dir(&rust_src_dir.join("src/tools/run-make-support")); + // Compiletest itself. stamp.add_dir(&rust_src_dir.join("src/tools/compiletest/")); From 66f1e14cc3fa48aa29ecd19274207bfd3fb08fa8 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Sat, 23 Mar 2024 17:24:13 -0700 Subject: [PATCH 26/54] Simplify an iterator search in borrowck diag Rather than `.into_iter().rev().find_position(...)`, this case can simply call `.iter().rposition(...)`. --- .../rustc_borrowck/src/diagnostics/mod.rs | 20 +++++++++---------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index 11561539f6ddb..0106e285604d6 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -4,7 +4,6 @@ use crate::session_diagnostics::{ CaptureArgLabel, CaptureReasonLabel, CaptureReasonNote, CaptureReasonSuggest, CaptureVarCause, CaptureVarKind, CaptureVarPathUseCause, OnClosureNote, }; -use itertools::Itertools; use rustc_errors::{Applicability, Diag}; use rustc_hir as hir; use rustc_hir::def::{CtorKind, Namespace}; @@ -226,16 +225,15 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { } } else { if autoderef_index.is_none() { - autoderef_index = - match place.projection.into_iter().rev().find_position(|elem| { - !matches!( - elem, - ProjectionElem::Deref | ProjectionElem::Downcast(..) - ) - }) { - Some((index, _)) => Some(place.projection.len() - index), - None => Some(0), - }; + autoderef_index = match place.projection.iter().rposition(|elem| { + !matches!( + elem, + ProjectionElem::Deref | ProjectionElem::Downcast(..) + ) + }) { + Some(index) => Some(index + 1), + None => Some(0), + }; } if index >= autoderef_index.unwrap() { buf.insert(0, '*'); From b67ad8f626a8848eb568a528d31b32d65fddccb5 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Sat, 23 Mar 2024 21:49:29 -0700 Subject: [PATCH 27/54] Rename `Arguments::as_const_str` to `as_statically_known_str` While `const` has a particular meaning about language guarantees, here we need a fuzzier notion like whether constant propagation was effective, and `statically_known` is the best term we have for now. --- library/core/src/fmt/mod.rs | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/library/core/src/fmt/mod.rs b/library/core/src/fmt/mod.rs index 4016167d05cd0..e880d5758ec0a 100644 --- a/library/core/src/fmt/mod.rs +++ b/library/core/src/fmt/mod.rs @@ -201,7 +201,7 @@ pub trait Write { impl SpecWriteFmt for &mut W { #[inline] default fn spec_write_fmt(mut self, args: Arguments<'_>) -> Result { - if let Some(s) = args.as_const_str() { + if let Some(s) = args.as_statically_known_str() { self.write_str(s) } else { write(&mut self, args) @@ -212,7 +212,7 @@ pub trait Write { impl SpecWriteFmt for &mut W { #[inline] fn spec_write_fmt(self, args: Arguments<'_>) -> Result { - if let Some(s) = args.as_const_str() { + if let Some(s) = args.as_statically_known_str() { self.write_str(s) } else { write(self, args) @@ -442,7 +442,7 @@ impl<'a> Arguments<'a> { /// Same as [`Arguments::as_str`], but will only return `Some(s)` if it can be determined at compile time. #[must_use] #[inline] - fn as_const_str(&self) -> Option<&'static str> { + fn as_statically_known_str(&self) -> Option<&'static str> { let s = self.as_str(); if core::intrinsics::is_val_statically_known(s.is_some()) { s } else { None } } @@ -1617,7 +1617,11 @@ impl<'a> Formatter<'a> { #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result { - if let Some(s) = fmt.as_const_str() { self.buf.write_str(s) } else { write(self.buf, fmt) } + if let Some(s) = fmt.as_statically_known_str() { + self.buf.write_str(s) + } else { + write(self.buf, fmt) + } } /// Flags for formatting @@ -2308,7 +2312,7 @@ impl Write for Formatter<'_> { #[inline] fn write_fmt(&mut self, args: Arguments<'_>) -> Result { - if let Some(s) = args.as_const_str() { + if let Some(s) = args.as_statically_known_str() { self.buf.write_str(s) } else { write(self.buf, args) From fc5085d5709df1cc6e409d60216c6a1f5380aa48 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 16:45:15 +0100 Subject: [PATCH 28/54] add test for #90192 Fixes #90192 --- .../ice-poly-with-mir-opts-90192.rs | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 tests/ui/polymorphization/ice-poly-with-mir-opts-90192.rs diff --git a/tests/ui/polymorphization/ice-poly-with-mir-opts-90192.rs b/tests/ui/polymorphization/ice-poly-with-mir-opts-90192.rs new file mode 100644 index 0000000000000..4557c7e517ceb --- /dev/null +++ b/tests/ui/polymorphization/ice-poly-with-mir-opts-90192.rs @@ -0,0 +1,20 @@ +// issue: rust-lang/rust#90192 +// ICE assertion failed: matches!(ty.kind(), ty :: Param(_)) +//@ compile-flags:-Zpolymorphize=on -Zmir-opt-level=3 +//@ build-pass + +fn test() { + std::mem::size_of::(); +} + +pub fn foo(_: T) -> &'static fn() { + &(test:: as fn()) +} + +fn outer() { + foo(|| ()); +} + +fn main() { + outer::(); +} From 14d05c4c4b8858202dd6eff02763a1b9e1c8031a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 17:49:04 +0100 Subject: [PATCH 29/54] add test for #52334 Fixes #52334 --- .../extern-C-non-FFI-safe-arg-ice-52334.rs | 13 +++++++++++ ...extern-C-non-FFI-safe-arg-ice-52334.stderr | 22 +++++++++++++++++++ 2 files changed, 35 insertions(+) create mode 100644 tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs create mode 100644 tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.stderr diff --git a/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs b/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs new file mode 100644 index 0000000000000..3f515ea890935 --- /dev/null +++ b/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs @@ -0,0 +1,13 @@ +// test for #52334 ICE when casting extern "C" fn when it has a non-FFI-safe argument +//@ check-pass + +type Foo = extern "C" fn(::std::ffi::CStr); +//~^ WARN `extern` fn uses type `[i8]`, which is not FFI-safe +extern "C" { + fn meh(blah: Foo); + //~^ WARN `extern` block uses type `[i8]`, which is not FFI-safe +} + +fn main() { + meh as usize; +} diff --git a/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.stderr b/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.stderr new file mode 100644 index 0000000000000..97c632740e884 --- /dev/null +++ b/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.stderr @@ -0,0 +1,22 @@ +warning: `extern` fn uses type `[i8]`, which is not FFI-safe + --> $DIR/extern-C-non-FFI-safe-arg-ice-52334.rs:4:12 + | +LL | type Foo = extern "C" fn(::std::ffi::CStr); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe + | + = help: consider using a raw pointer instead + = note: slices have no C equivalent + = note: `#[warn(improper_ctypes_definitions)]` on by default + +warning: `extern` block uses type `[i8]`, which is not FFI-safe + --> $DIR/extern-C-non-FFI-safe-arg-ice-52334.rs:7:18 + | +LL | fn meh(blah: Foo); + | ^^^ not FFI-safe + | + = help: consider using a raw pointer instead + = note: slices have no C equivalent + = note: `#[warn(improper_ctypes)]` on by default + +warning: 2 warnings emitted + From a5ad0be52f123b4d6c61c62567518f7c5692af39 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 18:00:38 +0100 Subject: [PATCH 30/54] add test for #64784 Declarative macros can create infinite glob import cycles Fixes #64784 --- ...acro-infinite-global-import-cycle-ice-64784.rs | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs diff --git a/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs b/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs new file mode 100644 index 0000000000000..da7c5442d36da --- /dev/null +++ b/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs @@ -0,0 +1,15 @@ +// ICE #64784 already borrowed: BorrowMutError +//@ check-pass +#![feature(decl_macro)] + +pub macro m($i:ident, $j:ident) { + mod $i { + pub use crate::$j::*; + pub struct A; + } +} + +m!(x, y); +m!(y, x); + +fn main() {} From 19310ce2cc330f301d60ce53541969e5f5602d52 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 18:12:49 +0100 Subject: [PATCH 31/54] add test for str as extern "C" arg causes compiler panic #80125 Fixes #80125 --- tests/ui/extern/extern-C-str-arg-ice-80125.rs | 15 ++++++++ .../extern/extern-C-str-arg-ice-80125.stderr | 35 +++++++++++++++++++ 2 files changed, 50 insertions(+) create mode 100644 tests/ui/extern/extern-C-str-arg-ice-80125.rs create mode 100644 tests/ui/extern/extern-C-str-arg-ice-80125.stderr diff --git a/tests/ui/extern/extern-C-str-arg-ice-80125.rs b/tests/ui/extern/extern-C-str-arg-ice-80125.rs new file mode 100644 index 0000000000000..71098fed2efad --- /dev/null +++ b/tests/ui/extern/extern-C-str-arg-ice-80125.rs @@ -0,0 +1,15 @@ +// test for #80125 +//@ check-pass +type ExternCallback = extern "C" fn(*const u8, u32, str); +//~^ WARN `extern` fn uses type `str`, which is not FFI-safe + +pub struct Struct(ExternCallback); + +#[no_mangle] +pub extern "C" fn register_something(bind: ExternCallback) -> Struct { +//~^ WARN `extern` fn uses type `str`, which is not FFI-safe +//~^^ WARN `extern` fn uses type `Struct`, which is not FFI-safe + Struct(bind) +} + +fn main() {} diff --git a/tests/ui/extern/extern-C-str-arg-ice-80125.stderr b/tests/ui/extern/extern-C-str-arg-ice-80125.stderr new file mode 100644 index 0000000000000..ebd6cec6ecd3f --- /dev/null +++ b/tests/ui/extern/extern-C-str-arg-ice-80125.stderr @@ -0,0 +1,35 @@ +warning: `extern` fn uses type `str`, which is not FFI-safe + --> $DIR/extern-C-str-arg-ice-80125.rs:3:23 + | +LL | type ExternCallback = extern "C" fn(*const u8, u32, str); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe + | + = help: consider using `*const u8` and a length instead + = note: string slices have no C equivalent + = note: `#[warn(improper_ctypes_definitions)]` on by default + +warning: `extern` fn uses type `str`, which is not FFI-safe + --> $DIR/extern-C-str-arg-ice-80125.rs:9:44 + | +LL | pub extern "C" fn register_something(bind: ExternCallback) -> Struct { + | ^^^^^^^^^^^^^^ not FFI-safe + | + = help: consider using `*const u8` and a length instead + = note: string slices have no C equivalent + +warning: `extern` fn uses type `Struct`, which is not FFI-safe + --> $DIR/extern-C-str-arg-ice-80125.rs:9:63 + | +LL | pub extern "C" fn register_something(bind: ExternCallback) -> Struct { + | ^^^^^^ not FFI-safe + | + = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct + = note: this struct has unspecified layout +note: the type is defined here + --> $DIR/extern-C-str-arg-ice-80125.rs:6:1 + | +LL | pub struct Struct(ExternCallback); + | ^^^^^^^^^^^^^^^^^ + +warning: 3 warnings emitted + From 445507a19dec84532420bbe9091ead5d6e9ae448 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 18:18:56 +0100 Subject: [PATCH 32/54] add test for ice 83056 "bad input type for cast" Fixes #83056 --- .../ice-bad-input-type-for-cast-83056.rs | 6 ++++++ .../ice-bad-input-type-for-cast-83056.stderr | 20 +++++++++++++++++++ 2 files changed, 26 insertions(+) create mode 100644 tests/ui/consts/ice-bad-input-type-for-cast-83056.rs create mode 100644 tests/ui/consts/ice-bad-input-type-for-cast-83056.stderr diff --git a/tests/ui/consts/ice-bad-input-type-for-cast-83056.rs b/tests/ui/consts/ice-bad-input-type-for-cast-83056.rs new file mode 100644 index 0000000000000..ea0aba2c91160 --- /dev/null +++ b/tests/ui/consts/ice-bad-input-type-for-cast-83056.rs @@ -0,0 +1,6 @@ +// #83056 ICE "bad input type for cast" + +struct S([bool; f as usize]); +fn f() -> T {} +//~^ ERROR cannot find type `T` in this scope +pub fn main() {} diff --git a/tests/ui/consts/ice-bad-input-type-for-cast-83056.stderr b/tests/ui/consts/ice-bad-input-type-for-cast-83056.stderr new file mode 100644 index 0000000000000..4764f49cf464a --- /dev/null +++ b/tests/ui/consts/ice-bad-input-type-for-cast-83056.stderr @@ -0,0 +1,20 @@ +error[E0412]: cannot find type `T` in this scope + --> $DIR/ice-bad-input-type-for-cast-83056.rs:4:11 + | +LL | struct S([bool; f as usize]); + | ----------------------------- similarly named struct `S` defined here +LL | fn f() -> T {} + | ^ + | +help: a struct with a similar name exists + | +LL | fn f() -> S {} + | ~ +help: you might be missing a type parameter + | +LL | fn f() -> T {} + | +++ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0412`. From 74ca9813ed18e1bdb3d4d1c8ab8d311873414eb1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 18:23:19 +0100 Subject: [PATCH 33/54] add test for #88212 ICE when lambda captures unsized local Fixes #88212 --- ...nd_align_of-closure-not-supported-88212.rs | 21 +++++++++++++++++ ...lign_of-closure-not-supported-88212.stderr | 23 +++++++++++++++++++ 2 files changed, 44 insertions(+) create mode 100644 tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.rs create mode 100644 tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.stderr diff --git a/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.rs b/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.rs new file mode 100644 index 0000000000000..1c43e3a448976 --- /dev/null +++ b/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.rs @@ -0,0 +1,21 @@ +// ICE size_and_align_of::<[closure@test.rs:15:5: 17:7]> not supported #88212 + +#![feature(unsized_locals)] +//~^ WARN the feature `unsized_locals` is incomplete and may not be safe to use and/or cause compiler crashes + +trait Example {} +struct Foo(); + +impl Example for Foo {} + +fn example() -> Box { + Box::new(Foo()) +} + +fn main() { + let x: dyn Example = *example(); + (move || { + let _y = x; + //~^ ERROR the size for values of type `dyn Example` cannot be known at compilation time + })(); +} diff --git a/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.stderr b/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.stderr new file mode 100644 index 0000000000000..a0253ac1f35aa --- /dev/null +++ b/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.stderr @@ -0,0 +1,23 @@ +warning: the feature `unsized_locals` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/ice-size_and_align_of-closure-not-supported-88212.rs:3:12 + | +LL | #![feature(unsized_locals)] + | ^^^^^^^^^^^^^^ + | + = note: see issue #48055 for more information + = note: `#[warn(incomplete_features)]` on by default + +error[E0277]: the size for values of type `dyn Example` cannot be known at compilation time + --> $DIR/ice-size_and_align_of-closure-not-supported-88212.rs:18:18 + | +LL | (move || { + | -- this closure captures all values by move +LL | let _y = x; + | ^ doesn't have a size known at compile-time + | + = help: the trait `Sized` is not implemented for `dyn Example` + = note: all values captured by value by a closure must have a statically known size + +error: aborting due to 1 previous error; 1 warning emitted + +For more information about this error, try `rustc --explain E0277`. From f44ee8f87d45516e8d78b715421954b5ded0c478 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 18:29:41 +0100 Subject: [PATCH 34/54] add test for 88421 ICE: could not fully normalize `&>::Output Fixes #88421 --- .../failed-to-normalize-ice-issue-88421.rs | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 tests/ui/const-generics/generic_const_exprs/failed-to-normalize-ice-issue-88421.rs diff --git a/tests/ui/const-generics/generic_const_exprs/failed-to-normalize-ice-issue-88421.rs b/tests/ui/const-generics/generic_const_exprs/failed-to-normalize-ice-issue-88421.rs new file mode 100644 index 0000000000000..2ea7394fb72a5 --- /dev/null +++ b/tests/ui/const-generics/generic_const_exprs/failed-to-normalize-ice-issue-88421.rs @@ -0,0 +1,36 @@ +//@ check-pass + +#![feature(adt_const_params)] +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +use std::ops::Index; + +pub struct CellPossibilities; + +pub enum CellState { + Empty(Option), +} + +pub struct Sudoku; + +impl Sudokuwhere + [CellState; SQUARE_SIZE * SQUARE_SIZE]: Sized, +{ + pub fn random() { + let CellState::Empty(_) = Self[()]; + } +} + +impl Index<()> for Sudoku +where + [CellState; SQUARE_SIZE * SQUARE_SIZE]: Sized, +{ + type Output = CellState; + + fn index(&self, _: ()) -> &Self::Output { + todo!() + } +} + +pub fn main() {} From 5ae90256daff3442ffe823035b79001b49c28ee1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 18:36:16 +0100 Subject: [PATCH 35/54] add test for ice #90691 ICE: resolution failed during building vtable representation Fixes #90691 --- ...uilding-vtable-representation-ice-90691.rs | 41 +++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 tests/ui/associated-type-bounds/resolution-failure-building-vtable-representation-ice-90691.rs diff --git a/tests/ui/associated-type-bounds/resolution-failure-building-vtable-representation-ice-90691.rs b/tests/ui/associated-type-bounds/resolution-failure-building-vtable-representation-ice-90691.rs new file mode 100644 index 0000000000000..33776809a7912 --- /dev/null +++ b/tests/ui/associated-type-bounds/resolution-failure-building-vtable-representation-ice-90691.rs @@ -0,0 +1,41 @@ +// ICE #90691 Encountered error `Unimplemented` selecting ... +//@ build-pass + +trait TError: std::fmt::Debug {} +impl TError for () {} + +trait SuperTrait { + type Error; +} + +trait Trait: SuperTrait {} + +impl Trait for T +where + T: SuperTrait, + ::Error: TError, +{ +} + +struct SomeTrait(S); +struct BoxedTrait(Box>); + +impl From> for BoxedTrait { + fn from(other: SomeTrait) -> Self { + Self(Box::new(other)) + } +} + +impl SuperTrait for SomeTrait { + type Error = (); +} + +impl From<()> for BoxedTrait { + fn from(c: ()) -> Self { + Self::from(SomeTrait(c)) + } +} + +fn main() { + let _: BoxedTrait = ().into(); +} From 57f500512bec1e29dbae876499899b579273aa2a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 19:06:46 +0100 Subject: [PATCH 36/54] add test for stack overflow with recursive type #98842 Fixes #98842 --- .../sized/stack-overflow-trait-infer-98842.rs | 15 +++++++++++ .../stack-overflow-trait-infer-98842.stderr | 25 +++++++++++++++++++ 2 files changed, 40 insertions(+) create mode 100644 tests/ui/sized/stack-overflow-trait-infer-98842.rs create mode 100644 tests/ui/sized/stack-overflow-trait-infer-98842.stderr diff --git a/tests/ui/sized/stack-overflow-trait-infer-98842.rs b/tests/ui/sized/stack-overflow-trait-infer-98842.rs new file mode 100644 index 0000000000000..2bba0777be49f --- /dev/null +++ b/tests/ui/sized/stack-overflow-trait-infer-98842.rs @@ -0,0 +1,15 @@ +// #98842 stack overflow in trait inference +//@ check-fail +//@ edition:2021 +//~^^^ ERROR cycle detected when computing layout of `Foo` + +// If the inner `Foo` is named through an associated type, +// the "infinite size" error does not occur. +struct Foo(<&'static Foo as ::core::ops::Deref>::Target); +// But Rust will be unable to know whether `Foo` is sized or not, +// and it will infinitely recurse somewhere trying to figure out the +// size of this pointer (is my guess): +const _: *const Foo = 0 as _; +//~^ ERROR it is undefined behavior to use this value + +pub fn main() {} diff --git a/tests/ui/sized/stack-overflow-trait-infer-98842.stderr b/tests/ui/sized/stack-overflow-trait-infer-98842.stderr new file mode 100644 index 0000000000000..42b2718e33246 --- /dev/null +++ b/tests/ui/sized/stack-overflow-trait-infer-98842.stderr @@ -0,0 +1,25 @@ +error[E0391]: cycle detected when computing layout of `Foo` + | + = note: ...which requires computing layout of `<&'static Foo as core::ops::deref::Deref>::Target`... + = note: ...which again requires computing layout of `Foo`, completing the cycle +note: cycle used when const-evaluating + checking `_` + --> $DIR/stack-overflow-trait-infer-98842.rs:12:1 + | +LL | const _: *const Foo = 0 as _; + | ^^^^^^^^^^^^^^^^^^^ + = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information + +error[E0080]: it is undefined behavior to use this value + --> $DIR/stack-overflow-trait-infer-98842.rs:12:1 + | +LL | const _: *const Foo = 0 as _; + | ^^^^^^^^^^^^^^^^^^^ a cycle occurred during layout computation + | + = note: the raw bytes of the constant (size: 8, align: 8) { + 00 00 00 00 00 00 00 00 │ ........ + } + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0080, E0391. +For more information about an error, try `rustc --explain E0080`. From 7aa76a7ac31d978bf0a80e304b39e43bd1b34547 Mon Sep 17 00:00:00 2001 From: Taiki Endo Date: Sun, 24 Mar 2024 17:26:48 +0900 Subject: [PATCH 37/54] Fix build failure on ARM/AArch64/PowerPC/RISC-V FreeBSD/NetBSD --- library/std/src/sys/pal/unix/net.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/library/std/src/sys/pal/unix/net.rs b/library/std/src/sys/pal/unix/net.rs index 1f140f7844f7c..9a0a1b18aee0d 100644 --- a/library/std/src/sys/pal/unix/net.rs +++ b/library/std/src/sys/pal/unix/net.rs @@ -459,7 +459,7 @@ impl Socket { const AF_NAME_MAX: usize = 16; let mut buf = [0; AF_NAME_MAX]; for (src, dst) in name.to_bytes().iter().zip(&mut buf[..AF_NAME_MAX - 1]) { - *dst = *src as i8; + *dst = *src as libc::c_char; } let mut arg: libc::accept_filter_arg = unsafe { mem::zeroed() }; arg.af_name = buf; From 114d012a0ee4a4c4d0552e5dfd0e01e0dacc2119 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= Date: Fri, 22 Mar 2024 19:21:50 +0100 Subject: [PATCH 38/54] add issue numbers via // issue: rust-lang/rust#ISSUE_NUM directive --- ...uilding-vtable-representation-ice-90691.rs | 1 + .../failed-to-normalize-ice-issue-88421.rs | 2 +- .../ice-bad-input-type-for-cast-83056.rs | 1 + .../ice-bad-input-type-for-cast-83056.stderr | 2 +- .../extern-C-non-FFI-safe-arg-ice-52334.rs | 9 ++++--- ...extern-C-non-FFI-safe-arg-ice-52334.stderr | 8 +++--- tests/ui/extern/extern-C-str-arg-ice-80125.rs | 2 +- ...-infinite-global-import-cycle-ice-64784.rs | 1 + ...ck-overflow-trait-infer-98842.32bit.stderr | 25 +++++++++++++++++++ ...ck-overflow-trait-infer-98842.64bit.stderr | 25 +++++++++++++++++++ .../sized/stack-overflow-trait-infer-98842.rs | 5 +++- .../stack-overflow-trait-infer-98842.stderr | 4 +-- ...nd_align_of-closure-not-supported-88212.rs | 2 +- 13 files changed, 73 insertions(+), 14 deletions(-) create mode 100644 tests/ui/sized/stack-overflow-trait-infer-98842.32bit.stderr create mode 100644 tests/ui/sized/stack-overflow-trait-infer-98842.64bit.stderr diff --git a/tests/ui/associated-type-bounds/resolution-failure-building-vtable-representation-ice-90691.rs b/tests/ui/associated-type-bounds/resolution-failure-building-vtable-representation-ice-90691.rs index 33776809a7912..d3c13974127cb 100644 --- a/tests/ui/associated-type-bounds/resolution-failure-building-vtable-representation-ice-90691.rs +++ b/tests/ui/associated-type-bounds/resolution-failure-building-vtable-representation-ice-90691.rs @@ -1,5 +1,6 @@ // ICE #90691 Encountered error `Unimplemented` selecting ... //@ build-pass +// issue: rust-lang/rust#90691 trait TError: std::fmt::Debug {} impl TError for () {} diff --git a/tests/ui/const-generics/generic_const_exprs/failed-to-normalize-ice-issue-88421.rs b/tests/ui/const-generics/generic_const_exprs/failed-to-normalize-ice-issue-88421.rs index 2ea7394fb72a5..3d41eeeff45cd 100644 --- a/tests/ui/const-generics/generic_const_exprs/failed-to-normalize-ice-issue-88421.rs +++ b/tests/ui/const-generics/generic_const_exprs/failed-to-normalize-ice-issue-88421.rs @@ -1,5 +1,5 @@ //@ check-pass - +// issue: rust-lang/rust#88421 #![feature(adt_const_params)] #![feature(generic_const_exprs)] #![allow(incomplete_features)] diff --git a/tests/ui/consts/ice-bad-input-type-for-cast-83056.rs b/tests/ui/consts/ice-bad-input-type-for-cast-83056.rs index ea0aba2c91160..1a22dc2b5495a 100644 --- a/tests/ui/consts/ice-bad-input-type-for-cast-83056.rs +++ b/tests/ui/consts/ice-bad-input-type-for-cast-83056.rs @@ -1,4 +1,5 @@ // #83056 ICE "bad input type for cast" +// issue: rust-lang/rust#83056 struct S([bool; f as usize]); fn f() -> T {} diff --git a/tests/ui/consts/ice-bad-input-type-for-cast-83056.stderr b/tests/ui/consts/ice-bad-input-type-for-cast-83056.stderr index 4764f49cf464a..115f168852058 100644 --- a/tests/ui/consts/ice-bad-input-type-for-cast-83056.stderr +++ b/tests/ui/consts/ice-bad-input-type-for-cast-83056.stderr @@ -1,5 +1,5 @@ error[E0412]: cannot find type `T` in this scope - --> $DIR/ice-bad-input-type-for-cast-83056.rs:4:11 + --> $DIR/ice-bad-input-type-for-cast-83056.rs:5:11 | LL | struct S([bool; f as usize]); | ----------------------------- similarly named struct `S` defined here diff --git a/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs b/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs index 3f515ea890935..bba7190d43da2 100644 --- a/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs +++ b/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.rs @@ -1,11 +1,14 @@ -// test for #52334 ICE when casting extern "C" fn when it has a non-FFI-safe argument +// test for ICE when casting extern "C" fn when it has a non-FFI-safe argument +// issue: rust-lang/rust#52334 //@ check-pass +//@ normalize-stderr-test "\[i8\]" -> "[i8 or u8 (arch dependant)]" +//@ normalize-stderr-test "\[u8\]" -> "[i8 or u8 (arch dependant)]" type Foo = extern "C" fn(::std::ffi::CStr); -//~^ WARN `extern` fn uses type `[i8]`, which is not FFI-safe +//~^ WARN `extern` fn uses type extern "C" { fn meh(blah: Foo); - //~^ WARN `extern` block uses type `[i8]`, which is not FFI-safe + //~^ WARN `extern` block uses type } fn main() { diff --git a/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.stderr b/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.stderr index 97c632740e884..8349298847918 100644 --- a/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.stderr +++ b/tests/ui/extern/extern-C-non-FFI-safe-arg-ice-52334.stderr @@ -1,5 +1,5 @@ -warning: `extern` fn uses type `[i8]`, which is not FFI-safe - --> $DIR/extern-C-non-FFI-safe-arg-ice-52334.rs:4:12 +warning: `extern` fn uses type `[i8 or u8 (arch dependant)]`, which is not FFI-safe + --> $DIR/extern-C-non-FFI-safe-arg-ice-52334.rs:7:12 | LL | type Foo = extern "C" fn(::std::ffi::CStr); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe @@ -8,8 +8,8 @@ LL | type Foo = extern "C" fn(::std::ffi::CStr); = note: slices have no C equivalent = note: `#[warn(improper_ctypes_definitions)]` on by default -warning: `extern` block uses type `[i8]`, which is not FFI-safe - --> $DIR/extern-C-non-FFI-safe-arg-ice-52334.rs:7:18 +warning: `extern` block uses type `[i8 or u8 (arch dependant)]`, which is not FFI-safe + --> $DIR/extern-C-non-FFI-safe-arg-ice-52334.rs:10:18 | LL | fn meh(blah: Foo); | ^^^ not FFI-safe diff --git a/tests/ui/extern/extern-C-str-arg-ice-80125.rs b/tests/ui/extern/extern-C-str-arg-ice-80125.rs index 71098fed2efad..0908d6199efb8 100644 --- a/tests/ui/extern/extern-C-str-arg-ice-80125.rs +++ b/tests/ui/extern/extern-C-str-arg-ice-80125.rs @@ -1,4 +1,4 @@ -// test for #80125 +// issue: rust-lang/rust#80125 //@ check-pass type ExternCallback = extern "C" fn(*const u8, u32, str); //~^ WARN `extern` fn uses type `str`, which is not FFI-safe diff --git a/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs b/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs index da7c5442d36da..72b1ea7ccc8ba 100644 --- a/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs +++ b/tests/ui/privacy/decl-macro-infinite-global-import-cycle-ice-64784.rs @@ -1,5 +1,6 @@ // ICE #64784 already borrowed: BorrowMutError //@ check-pass +// issue: rust-lang/rust#64784 #![feature(decl_macro)] pub macro m($i:ident, $j:ident) { diff --git a/tests/ui/sized/stack-overflow-trait-infer-98842.32bit.stderr b/tests/ui/sized/stack-overflow-trait-infer-98842.32bit.stderr new file mode 100644 index 0000000000000..3f8011d961ae7 --- /dev/null +++ b/tests/ui/sized/stack-overflow-trait-infer-98842.32bit.stderr @@ -0,0 +1,25 @@ +error[E0391]: cycle detected when computing layout of `Foo` + | + = note: ...which requires computing layout of `<&'static Foo as core::ops::deref::Deref>::Target`... + = note: ...which again requires computing layout of `Foo`, completing the cycle +note: cycle used when const-evaluating + checking `_` + --> $DIR/stack-overflow-trait-infer-98842.rs:15:1 + | +LL | const _: *const Foo = 0 as _; + | ^^^^^^^^^^^^^^^^^^^ + = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information + +error[E0080]: it is undefined behavior to use this value + --> $DIR/stack-overflow-trait-infer-98842.rs:15:1 + | +LL | const _: *const Foo = 0 as _; + | ^^^^^^^^^^^^^^^^^^^ a cycle occurred during layout computation + | + = note: the raw bytes of the constant (size: 4, align: 4) { + 00 00 00 00 │ .... + } + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0080, E0391. +For more information about an error, try `rustc --explain E0080`. diff --git a/tests/ui/sized/stack-overflow-trait-infer-98842.64bit.stderr b/tests/ui/sized/stack-overflow-trait-infer-98842.64bit.stderr new file mode 100644 index 0000000000000..04e2c4483bf64 --- /dev/null +++ b/tests/ui/sized/stack-overflow-trait-infer-98842.64bit.stderr @@ -0,0 +1,25 @@ +error[E0391]: cycle detected when computing layout of `Foo` + | + = note: ...which requires computing layout of `<&'static Foo as core::ops::deref::Deref>::Target`... + = note: ...which again requires computing layout of `Foo`, completing the cycle +note: cycle used when const-evaluating + checking `_` + --> $DIR/stack-overflow-trait-infer-98842.rs:15:1 + | +LL | const _: *const Foo = 0 as _; + | ^^^^^^^^^^^^^^^^^^^ + = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information + +error[E0080]: it is undefined behavior to use this value + --> $DIR/stack-overflow-trait-infer-98842.rs:15:1 + | +LL | const _: *const Foo = 0 as _; + | ^^^^^^^^^^^^^^^^^^^ a cycle occurred during layout computation + | + = note: the raw bytes of the constant (size: 8, align: 8) { + 00 00 00 00 00 00 00 00 │ ........ + } + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0080, E0391. +For more information about an error, try `rustc --explain E0080`. diff --git a/tests/ui/sized/stack-overflow-trait-infer-98842.rs b/tests/ui/sized/stack-overflow-trait-infer-98842.rs index 2bba0777be49f..54d50346cc831 100644 --- a/tests/ui/sized/stack-overflow-trait-infer-98842.rs +++ b/tests/ui/sized/stack-overflow-trait-infer-98842.rs @@ -1,7 +1,10 @@ // #98842 stack overflow in trait inference +// issue: rust-lang/rust#98842 //@ check-fail //@ edition:2021 -//~^^^ ERROR cycle detected when computing layout of `Foo` +//@ stderr-per-bitwidth +//@ ignore-endian-big +//~^^^^^^ ERROR cycle detected when computing layout of `Foo` // If the inner `Foo` is named through an associated type, // the "infinite size" error does not occur. diff --git a/tests/ui/sized/stack-overflow-trait-infer-98842.stderr b/tests/ui/sized/stack-overflow-trait-infer-98842.stderr index 42b2718e33246..8ddddeb5bf2d1 100644 --- a/tests/ui/sized/stack-overflow-trait-infer-98842.stderr +++ b/tests/ui/sized/stack-overflow-trait-infer-98842.stderr @@ -3,14 +3,14 @@ error[E0391]: cycle detected when computing layout of `Foo` = note: ...which requires computing layout of `<&'static Foo as core::ops::deref::Deref>::Target`... = note: ...which again requires computing layout of `Foo`, completing the cycle note: cycle used when const-evaluating + checking `_` - --> $DIR/stack-overflow-trait-infer-98842.rs:12:1 + --> $DIR/stack-overflow-trait-infer-98842.rs:13:1 | LL | const _: *const Foo = 0 as _; | ^^^^^^^^^^^^^^^^^^^ = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information error[E0080]: it is undefined behavior to use this value - --> $DIR/stack-overflow-trait-infer-98842.rs:12:1 + --> $DIR/stack-overflow-trait-infer-98842.rs:13:1 | LL | const _: *const Foo = 0 as _; | ^^^^^^^^^^^^^^^^^^^ a cycle occurred during layout computation diff --git a/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.rs b/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.rs index 1c43e3a448976..ec475673d0d84 100644 --- a/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.rs +++ b/tests/ui/unsized-locals/ice-size_and_align_of-closure-not-supported-88212.rs @@ -1,5 +1,5 @@ // ICE size_and_align_of::<[closure@test.rs:15:5: 17:7]> not supported #88212 - +// issue: rust-lang/rust#88212 #![feature(unsized_locals)] //~^ WARN the feature `unsized_locals` is incomplete and may not be safe to use and/or cause compiler crashes From 0727b6ad0db5876910291f9e20cc66b730cde6e1 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sun, 24 Mar 2024 09:40:07 +0100 Subject: [PATCH 39/54] panic-in-panic-hook: formatting a message that's just a string is risk-free --- library/std/src/lib.rs | 1 + library/std/src/panicking.rs | 14 +++++++++----- tests/ui/panics/panic-in-message-fmt.run.stderr | 1 + 3 files changed, 11 insertions(+), 5 deletions(-) diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index c457c39e0c11c..dc5a8704498d5 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -328,6 +328,7 @@ #![feature(float_gamma)] #![feature(float_minimum_maximum)] #![feature(float_next_up_down)] +#![feature(fmt_internals)] #![feature(generic_nonzero)] #![feature(hasher_prefixfree_extras)] #![feature(hashmap_internals)] diff --git a/library/std/src/panicking.rs b/library/std/src/panicking.rs index e6e1d32fa54f8..31dbe86b66c70 100644 --- a/library/std/src/panicking.rs +++ b/library/std/src/panicking.rs @@ -391,6 +391,7 @@ pub mod panic_count { pub fn increase(run_panic_hook: bool) -> Option { let global_count = GLOBAL_PANIC_COUNT.fetch_add(1, Ordering::Relaxed); if global_count & ALWAYS_ABORT_FLAG != 0 { + // Do *not* access thread-local state, we might be after a `fork`. return Some(MustAbort::AlwaysAbort); } @@ -744,11 +745,14 @@ fn rust_panic_with_hook( if let Some(must_abort) = must_abort { match must_abort { panic_count::MustAbort::PanicInHook => { - // Don't try to print the message in this case - // - perhaps that is causing the recursive panics. + // Don't try to format the message in this case, perhaps that is causing the + // recursive panics. However if the message is just a string, no user-defined + // code is involved in printing it, so that is risk-free. + let msg_str = message.and_then(|m| m.as_str()).map(|m| [m]); + let message = msg_str.as_ref().map(|m| fmt::Arguments::new_const(m)); let panicinfo = PanicInfo::internal_constructor( - None, // no message - location, // but we want to show the location! + message.as_ref(), + location, can_unwind, force_no_backtrace, ); @@ -756,7 +760,7 @@ fn rust_panic_with_hook( } panic_count::MustAbort::AlwaysAbort => { // Unfortunately, this does not print a backtrace, because creating - // a `Backtrace` will allocate, which we must to avoid here. + // a `Backtrace` will allocate, which we must avoid here. let panicinfo = PanicInfo::internal_constructor( message, location, diff --git a/tests/ui/panics/panic-in-message-fmt.run.stderr b/tests/ui/panics/panic-in-message-fmt.run.stderr index c3a5733c8ae3f..46829c33a5466 100644 --- a/tests/ui/panics/panic-in-message-fmt.run.stderr +++ b/tests/ui/panics/panic-in-message-fmt.run.stderr @@ -1,2 +1,3 @@ panicked at $DIR/panic-in-message-fmt.rs:18:9: +not yet implemented thread panicked while processing panic. aborting. From fb65ca14b21cb3210251915864007d7c0d64ae21 Mon Sep 17 00:00:00 2001 From: Giacomo Stevanato Date: Sun, 24 Mar 2024 11:20:10 +0100 Subject: [PATCH 40/54] Clarify transmute example --- library/core/src/intrinsics.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/library/core/src/intrinsics.rs b/library/core/src/intrinsics.rs index dec31548fc8c3..bb1debfc77dec 100644 --- a/library/core/src/intrinsics.rs +++ b/library/core/src/intrinsics.rs @@ -1356,7 +1356,7 @@ extern "rust-intrinsic" { /// let v_clone = v_orig.clone(); /// /// // This is the suggested, safe way. - /// // It does copy the entire vector, though, into a new array. + /// // It may copy the entire vector into a new one though, but also may not. /// let v_collected = v_clone.into_iter() /// .map(Some) /// .collect::>>(); From 4b84df9ea398fd3b3da55968d021906fc2346ce8 Mon Sep 17 00:00:00 2001 From: David Carlier Date: Sun, 24 Mar 2024 10:57:17 +0000 Subject: [PATCH 41/54] std::thread: refine available_parallelism for solaris/illumos. Rather than the system-wide available cpus fallback solution, we fetch the cpus bound to the current process. --- library/std/src/sys/pal/unix/thread.rs | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/library/std/src/sys/pal/unix/thread.rs b/library/std/src/sys/pal/unix/thread.rs index 6520ca9fc48ef..9befcb0e3e6d6 100644 --- a/library/std/src/sys/pal/unix/thread.rs +++ b/library/std/src/sys/pal/unix/thread.rs @@ -483,6 +483,12 @@ pub fn available_parallelism() -> io::Result> { .ok_or(io::const_io_error!(io::ErrorKind::NotFound, "The number of hardware threads is not known for the target platform")) } } + } else if #[cfg(any(target_os = "solaris", target_os = "illumos"))] { + let mut cpus = 0u32; + if unsafe { libc::pset_info(libc::PS_MYID, core::ptr::null_mut(), &mut cpus, core::ptr::null_mut()) } == 0 { + NonZero::new(cpus as usize) + .ok_or(io::const_io_error!(io::ErrorKind::NotFound, "The number of hardware threads is not known for the target platform")) + } } else if #[cfg(target_os = "haiku")] { // system_info cpu_count field gets the static data set at boot time with `smp_set_num_cpus` // `get_system_info` calls then `smp_get_num_cpus` From 1848b46c0b96ceb6e878de4597c707ea2d674325 Mon Sep 17 00:00:00 2001 From: github-actions Date: Sun, 24 Mar 2024 12:09:28 +0000 Subject: [PATCH 42/54] cargo update Updating aho-corasick v1.1.2 -> v1.1.3 Updating backtrace v0.3.69 -> v0.3.71 Updating bitflags v2.4.2 -> v2.5.0 Updating bytes v1.5.0 -> v1.6.0 Updating cargo-platform v0.1.7 -> v0.1.8 Updating fastrand v2.0.1 -> v2.0.2 Updating indexmap v2.2.5 -> v2.2.6 Updating libz-sys v1.1.15 -> v1.1.16 Updating rayon v1.9.0 -> v1.10.0 Updating reqwest v0.11.26 -> v0.11.27 (latest: v0.12.1) Updating rustix v0.38.31 -> v0.38.32 Updating smallvec v1.13.1 -> v1.13.2 Updating syn v2.0.53 -> v2.0.55 Updating uuid v1.7.0 -> v1.8.0 note: pass `--verbose` to see 87 unchanged dependencies behind latest --- Cargo.lock | 158 ++++++++++++++++++++++++++--------------------------- 1 file changed, 79 insertions(+), 79 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index b8fe1ebaf8019..fd77ecaa0f311 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -49,9 +49,9 @@ dependencies = [ [[package]] name = "aho-corasick" -version = "1.1.2" +version = "1.1.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b2969dcb958b36655471fc61f7e416fa76033bdd4bfed0678d8fee1e2d07a1f0" +checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916" dependencies = [ "memchr", ] @@ -246,7 +246,7 @@ dependencies = [ "proc-macro2", "quote", "serde", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -272,9 +272,9 @@ checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa" [[package]] name = "backtrace" -version = "0.3.69" +version = "0.3.71" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2089b7e3f35b9dd2d0ed921ead4f6d318c27680d4a5bd167b3ee120edb105837" +checksum = "26b05800d2e817c8b3b4b54abd461726265fa9789ae34330622f2db9ee696f9d" dependencies = [ "addr2line", "cc", @@ -317,9 +317,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a" [[package]] name = "bitflags" -version = "2.4.2" +version = "2.5.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ed570934406eb16438a4e976b1b4500774099c13b8cb96eec99f620f05090ddf" +checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1" [[package]] name = "block-buffer" @@ -400,9 +400,9 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b" [[package]] name = "bytes" -version = "1.5.0" +version = "1.6.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a2bd12c1caf447e69cd4528f47f94d203fd2582878ecb9e9465484c4148a8223" +checksum = "514de17de45fdb8dc022b1a7975556c53c86f9f0aa5f534b98977b171857c2c9" [[package]] name = "camino" @@ -428,9 +428,9 @@ dependencies = [ [[package]] name = "cargo-platform" -version = "0.1.7" +version = "0.1.8" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "694c8807f2ae16faecc43dc17d74b3eb042482789fd0eb64b39a2e04e087053f" +checksum = "24b1f0365a6c6bb4020cd05806fd0d33c44d38046b8bd7f0e40814b9763cabfc" dependencies = [ "serde", ] @@ -563,7 +563,7 @@ dependencies = [ "heck 0.5.0", "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -590,7 +590,7 @@ dependencies = [ "regex", "rustc_tools_util", "serde", - "syn 2.0.53", + "syn 2.0.55", "tempfile", "termize", "tester", @@ -949,7 +949,7 @@ dependencies = [ "proc-macro2", "quote", "strsim 0.10.0", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -960,7 +960,7 @@ checksum = "a668eda54683121533a393014d8692171709ff57a7d61f187b6e782719f8933f" dependencies = [ "darling_core", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -975,7 +975,7 @@ version = "0.1.79" dependencies = [ "itertools 0.12.1", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -1016,7 +1016,7 @@ dependencies = [ "darling", "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -1026,7 +1026,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "206868b8242f27cecce124c19fd88157fbd0dd334df2587f36417bafbc85097b" dependencies = [ "derive_builder_core", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -1049,7 +1049,7 @@ dependencies = [ "darling", "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -1138,7 +1138,7 @@ checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -1293,9 +1293,9 @@ checksum = "2acce4a10f12dc2fb14a218589d4f1f62ef011b2d0cc4b3cb1bba8e94da14649" [[package]] name = "fastrand" -version = "2.0.1" +version = "2.0.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "25cbce373ec4653f1a01a31e8a5e5ec0c622dc27ff9c4e6606eefef5cbbed4a5" +checksum = "658bd65b1cf4c852a3cc96f18a8ce7b5640f6b703f905c7d74532294c2a63984" [[package]] name = "field-offset" @@ -1484,7 +1484,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -1922,7 +1922,7 @@ checksum = "d2abdd3a62551e8337af119c5899e600ca0c88ec8f23a46c60ba216c803dcf1a" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -1972,9 +1972,9 @@ checksum = "ce23b50ad8242c51a442f3ff322d56b02f08852c77e4c0b4d3fd684abc89c683" [[package]] name = "indexmap" -version = "2.2.5" +version = "2.2.6" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7b0b929d511467233429c45a44ac1dcaa21ba0f5ba11e4879e6ed28ddb4f9df4" +checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26" dependencies = [ "equivalent", "hashbrown", @@ -2205,7 +2205,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "0c2a198fb6b0eada2a8df47933734e6d35d350665a33a3593d7164fa52c75c19" dependencies = [ "cfg-if", - "windows-targets 0.48.5", + "windows-targets 0.52.4", ] [[package]] @@ -2220,16 +2220,16 @@ version = "0.0.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "85c833ca1e66078851dba29046874e38f08b2c883700aa29a03ddd3b23814ee8" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "libc", "redox_syscall", ] [[package]] name = "libz-sys" -version = "1.1.15" +version = "1.1.16" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "037731f5d3aaa87a5675e895b63ddff1a87624bc29f77004ea829809654e48f6" +checksum = "5e143b5e666b2695d28f6bca6497720813f699c9602dd7f5cac91008b8ada7f9" dependencies = [ "cc", "libc", @@ -2546,7 +2546,7 @@ version = "0.28.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ab2156c4fce2f8df6c499cc1c763e4394b7482525bf2a9701c9d79d215f519e4" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "cfg-if", "cfg_aliases", "libc", @@ -2683,7 +2683,7 @@ version = "0.10.64" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "95a0481286a310808298130d22dd1fef0fa571e05a8f44ec801801e84b216b1f" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "cfg-if", "foreign-types", "libc", @@ -2700,7 +2700,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -2893,7 +2893,7 @@ dependencies = [ "pest_meta", "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -3055,7 +3055,7 @@ version = "0.9.6" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "57206b407293d2bcd3af849ce869d52068623f19e1b5ff8e8778e3309439682b" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "memchr", "unicase", ] @@ -3066,7 +3066,7 @@ version = "0.10.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "dce76ce678ffc8e5675b22aa1405de0b7037e2fdf8913fea40d1926c6fe1e6e7" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "memchr", "pulldown-cmark-escape", "unicase", @@ -3170,9 +3170,9 @@ dependencies = [ [[package]] name = "rayon" -version = "1.9.0" +version = "1.10.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e4963ed1bc86e4f3ee217022bd855b297cef07fb9eac5dfa1f788b220b49b3bd" +checksum = "b418a60154510ca1a002a752ca9714984e21e4241e804d32555251faf8b78ffa" dependencies = [ "either", "rayon-core", @@ -3285,9 +3285,9 @@ dependencies = [ [[package]] name = "reqwest" -version = "0.11.26" +version = "0.11.27" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "78bf93c4af7a8bb7d879d51cebe797356ff10ae8516ace542b5182d9dcac10b2" +checksum = "dd67538700a17451e7cba03ac727fb961abb7607553461627b97de0b89cf4a62" dependencies = [ "base64", "bytes", @@ -3448,7 +3448,7 @@ dependencies = [ name = "rustc_abi" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "rand", "rand_xoshiro", "rustc_data_structures", @@ -3479,7 +3479,7 @@ dependencies = [ name = "rustc_ast" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "memchr", "rustc_ast_ir", "rustc_data_structures", @@ -3642,7 +3642,7 @@ dependencies = [ name = "rustc_codegen_llvm" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "itertools 0.12.1", "libc", "measureme", @@ -3677,7 +3677,7 @@ name = "rustc_codegen_ssa" version = "0.0.0" dependencies = [ "ar_archive_writer", - "bitflags 2.4.2", + "bitflags 2.5.0", "cc", "itertools 0.12.1", "jobserver", @@ -3746,7 +3746,7 @@ name = "rustc_data_structures" version = "0.0.0" dependencies = [ "arrayvec", - "bitflags 2.4.2", + "bitflags 2.5.0", "either", "elsa", "ena", @@ -3929,7 +3929,7 @@ dependencies = [ "fluent-syntax", "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", "unic-langid", ] @@ -4064,7 +4064,7 @@ version = "0.0.0" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", "synstructure", ] @@ -4210,7 +4210,7 @@ version = "0.0.0" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", "synstructure", ] @@ -4218,7 +4218,7 @@ dependencies = [ name = "rustc_metadata" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "libloading", "odht", "rustc_ast", @@ -4248,7 +4248,7 @@ dependencies = [ name = "rustc_middle" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "derivative", "either", "field-offset", @@ -4385,7 +4385,7 @@ dependencies = [ name = "rustc_parse" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "rustc_ast", "rustc_ast_pretty", "rustc_data_structures", @@ -4525,7 +4525,7 @@ dependencies = [ name = "rustc_resolve" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "pulldown-cmark 0.9.6", "rustc_arena", "rustc_ast", @@ -4564,7 +4564,7 @@ dependencies = [ name = "rustc_session" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "getopts", "libc", "rustc_ast", @@ -4624,7 +4624,7 @@ dependencies = [ name = "rustc_symbol_mangling" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "punycode", "rustc-demangle", "rustc_data_structures", @@ -4642,7 +4642,7 @@ dependencies = [ name = "rustc_target" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "object 0.32.2", "rustc_abi", "rustc_data_structures", @@ -4666,7 +4666,7 @@ checksum = "8ba09476327c4b70ccefb6180f046ef588c26a24cf5d269a9feba316eb4f029f" name = "rustc_trait_selection" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "itertools 0.12.1", "rustc_ast", "rustc_ast_ir", @@ -4745,7 +4745,7 @@ dependencies = [ name = "rustc_type_ir" version = "0.0.0" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "derivative", "rustc_ast_ir", "rustc_data_structures", @@ -4838,7 +4838,7 @@ dependencies = [ "proc-macro2", "quote", "serde", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -4873,11 +4873,11 @@ dependencies = [ [[package]] name = "rustix" -version = "0.38.31" +version = "0.38.32" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6ea3e1a662af26cd7a3ba09c0297a31af215563ecf42817c98df621387f4e949" +checksum = "65e04861e65f21776e67888bfbea442b3642beaa0138fdb1dd7a84a52dffdb89" dependencies = [ - "bitflags 2.4.2", + "bitflags 2.5.0", "errno", "libc", "linux-raw-sys", @@ -5021,7 +5021,7 @@ checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -5117,9 +5117,9 @@ dependencies = [ [[package]] name = "smallvec" -version = "1.13.1" +version = "1.13.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e6ecd384b10a64542d77071bd64bd7b231f4ed5940fba55e98c3de13824cf3d7" +checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67" [[package]] name = "snap" @@ -5328,9 +5328,9 @@ dependencies = [ [[package]] name = "syn" -version = "2.0.53" +version = "2.0.55" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7383cd0e49fff4b6b90ca5670bfd3e9d6a733b3f90c686605aa7eec8c4996032" +checksum = "002a1b3dbf967edfafc32655d0f377ab0bb7b994aa1d32c8cc7e9b8bf3ebb8f0" dependencies = [ "proc-macro2", "quote", @@ -5351,7 +5351,7 @@ checksum = "c8af7666ab7b6390ab78131fb5b0fce11d6b7a6951602017c35fa82800708971" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -5530,7 +5530,7 @@ checksum = "c61f3ba182994efc43764a46c018c347bc492c79f024e705f46567b418f6d4f7" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -5753,7 +5753,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -5970,7 +5970,7 @@ checksum = "fea2a4c80deb4fb3ca51f66b5e2dd91e3642bbce52234bcf22e41668281208e4" dependencies = [ "proc-macro-hack", "quote", - "syn 2.0.53", + "syn 2.0.55", "unic-langid-impl", ] @@ -6126,9 +6126,9 @@ checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a" [[package]] name = "uuid" -version = "1.7.0" +version = "1.8.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f00cc9702ca12d3c81455259621e676d0f7251cec66a21e98fe2e9a37db93b2a" +checksum = "a183cf7feeba97b4dd1c0d46788634f6221d87fa961b305bed08c851829efcc0" dependencies = [ "getrandom", ] @@ -6202,7 +6202,7 @@ dependencies = [ "once_cell", "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", "wasm-bindgen-shared", ] @@ -6236,7 +6236,7 @@ checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", "wasm-bindgen-backend", "wasm-bindgen-shared", ] @@ -6327,7 +6327,7 @@ dependencies = [ "rayon", "serde", "serde_json", - "syn 2.0.53", + "syn 2.0.55", "windows-metadata", ] @@ -6581,7 +6581,7 @@ checksum = "9e6936f0cce458098a201c245a11bef556c6a0181129c7034d10d76d1ec3a2b8" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", "synstructure", ] @@ -6602,7 +6602,7 @@ checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] @@ -6622,7 +6622,7 @@ checksum = "e6a647510471d372f2e6c2e6b7219e44d8c574d24fdc11c610a61455782f18c3" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", "synstructure", ] @@ -6645,7 +6645,7 @@ checksum = "7b4e5997cbf58990550ef1f0e5124a05e47e1ebd33a84af25739be6031a62c20" dependencies = [ "proc-macro2", "quote", - "syn 2.0.53", + "syn 2.0.55", ] [[package]] From 1871ea5710cdead66b1dfa3621f3727026185fa4 Mon Sep 17 00:00:00 2001 From: David Carlier Date: Sun, 24 Mar 2024 16:02:02 +0000 Subject: [PATCH 43/54] fix build. --- library/std/src/sys/pal/unix/thread.rs | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/library/std/src/sys/pal/unix/thread.rs b/library/std/src/sys/pal/unix/thread.rs index 9befcb0e3e6d6..a3e1b6782e8a8 100644 --- a/library/std/src/sys/pal/unix/thread.rs +++ b/library/std/src/sys/pal/unix/thread.rs @@ -355,8 +355,6 @@ pub fn available_parallelism() -> io::Result> { target_os = "tvos", target_os = "linux", target_os = "macos", - target_os = "solaris", - target_os = "illumos", target_os = "aix", ))] { #[allow(unused_assignments)] @@ -485,10 +483,10 @@ pub fn available_parallelism() -> io::Result> { } } else if #[cfg(any(target_os = "solaris", target_os = "illumos"))] { let mut cpus = 0u32; - if unsafe { libc::pset_info(libc::PS_MYID, core::ptr::null_mut(), &mut cpus, core::ptr::null_mut()) } == 0 { - NonZero::new(cpus as usize) - .ok_or(io::const_io_error!(io::ErrorKind::NotFound, "The number of hardware threads is not known for the target platform")) + if unsafe { libc::pset_info(libc::PS_MYID, core::ptr::null_mut(), &mut cpus, core::ptr::null_mut()) } != 0 { + return Err(io::const_io_error!(io::ErrorKind::NotFound, "The number of hardware threads is not known for the target platform")); } + Ok(unsafe { NonZero::new_unchecked(cpus as usize) }) } else if #[cfg(target_os = "haiku")] { // system_info cpu_count field gets the static data set at boot time with `smp_set_num_cpus` // `get_system_info` calls then `smp_get_num_cpus` From ea4518522f65480eb507a255dc215d39231e659f Mon Sep 17 00:00:00 2001 From: Matthew Maurer Date: Mon, 19 Feb 2024 18:39:35 +0000 Subject: [PATCH 44/54] CFI: Handle dyn with no principal In user-facing Rust, `dyn` always has at least one predicate following it. Unfortunately, because we filter out marker traits from receivers at callsites and `dyn Sync` is, for example, legal, this results in us having `dyn` types with no predicates on occasion in our alias set encoding. This patch handles cases where there are no predicates in a `dyn` type which are relevant to its alias set. Fixes #122998 --- .../src/typeid/typeid_itanium_cxx_abi.rs | 27 ++++++++++--------- tests/ui/sanitizer/cfi-drop-no-principal.rs | 21 +++++++++++++++ 2 files changed, 35 insertions(+), 13 deletions(-) create mode 100644 tests/ui/sanitizer/cfi-drop-no-principal.rs diff --git a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs index 367fec0e8fcb7..eda7d396d7240 100644 --- a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs +++ b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs @@ -747,9 +747,8 @@ fn transform_predicates<'tcx>( tcx: TyCtxt<'tcx>, predicates: &List>, ) -> &'tcx List> { - let predicates: Vec> = predicates - .iter() - .filter_map(|predicate| match predicate.skip_binder() { + tcx.mk_poly_existential_predicates_from_iter(predicates.iter().filter_map(|predicate| { + match predicate.skip_binder() { ty::ExistentialPredicate::Trait(trait_ref) => { let trait_ref = ty::TraitRef::identity(tcx, trait_ref.def_id); Some(ty::Binder::dummy(ty::ExistentialPredicate::Trait( @@ -758,9 +757,8 @@ fn transform_predicates<'tcx>( } ty::ExistentialPredicate::Projection(..) => None, ty::ExistentialPredicate::AutoTrait(..) => Some(predicate), - }) - .collect(); - tcx.mk_poly_existential_predicates(&predicates) + } + })) } /// Transforms args for being encoded and used in the substitution dictionary. @@ -1171,14 +1169,17 @@ fn strip_receiver_auto<'tcx>( let ty::Dynamic(preds, lifetime, kind) = ty.kind() else { bug!("Tried to strip auto traits from non-dynamic type {ty}"); }; - let filtered_preds = - if preds.principal().is_some() { + let new_rcvr = if preds.principal().is_some() { + let filtered_preds = tcx.mk_poly_existential_predicates_from_iter(preds.into_iter().filter(|pred| { !matches!(pred.skip_binder(), ty::ExistentialPredicate::AutoTrait(..)) - })) - } else { - ty::List::empty() - }; - let new_rcvr = Ty::new_dynamic(tcx, filtered_preds, *lifetime, *kind); + })); + Ty::new_dynamic(tcx, filtered_preds, *lifetime, *kind) + } else { + // If there's no principal type, re-encode it as a unit, since we don't know anything + // about it. This technically discards the knowledge that it was a type that was made + // into a trait object at some point, but that's not a lot. + tcx.types.unit + }; tcx.mk_args_trait(new_rcvr, args.into_iter().skip(1)) } diff --git a/tests/ui/sanitizer/cfi-drop-no-principal.rs b/tests/ui/sanitizer/cfi-drop-no-principal.rs new file mode 100644 index 0000000000000..c1c88c8c71c73 --- /dev/null +++ b/tests/ui/sanitizer/cfi-drop-no-principal.rs @@ -0,0 +1,21 @@ +// Check that dropping a trait object without a principal trait succeeds + +//@ needs-sanitizer-cfi +// FIXME(#122848) Remove only-linux once OSX CFI binaries works +//@ only-linux +//@ compile-flags: --crate-type=bin -Cprefer-dynamic=off -Clto -Zsanitizer=cfi +//@ compile-flags: -C target-feature=-crt-static -C codegen-units=1 -C opt-level=0 +// FIXME(#118761) Should be run-pass once the labels on drop are compatible. +// This test is being landed ahead of that to test that the compiler doesn't ICE while labeling the +// callsite for a drop, but the vtable doesn't have the correct label yet. +//@ build-pass + +struct CustomDrop; + +impl Drop for CustomDrop { + fn drop(&mut self) {} +} + +fn main() { + let _ = Box::new(CustomDrop) as Box; +} From 40f41e7e896e7d68534d05e955c20330b13f6d0b Mon Sep 17 00:00:00 2001 From: Matthew Maurer Date: Sat, 23 Mar 2024 01:19:43 +0000 Subject: [PATCH 45/54] CFI: Support arbitrary receivers Previously, we only rewrote `&self` and `&mut self` receivers. By instantiating the method from the trait definition, we can make this work work with arbitrary legal receivers instead. --- Cargo.lock | 1 + compiler/rustc_symbol_mangling/Cargo.toml | 1 + compiler/rustc_symbol_mangling/src/lib.rs | 1 + .../src/typeid/typeid_itanium_cxx_abi.rs | 109 +++++++++++------- tests/ui/sanitizer/cfi-complex-receiver.rs | 42 +++++++ 5 files changed, 115 insertions(+), 39 deletions(-) create mode 100644 tests/ui/sanitizer/cfi-complex-receiver.rs diff --git a/Cargo.lock b/Cargo.lock index b8fe1ebaf8019..ad48620bd907a 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -4634,6 +4634,7 @@ dependencies = [ "rustc_session", "rustc_span", "rustc_target", + "rustc_trait_selection", "tracing", "twox-hash", ] diff --git a/compiler/rustc_symbol_mangling/Cargo.toml b/compiler/rustc_symbol_mangling/Cargo.toml index 0ce522c9cabca..1c8f1d0367039 100644 --- a/compiler/rustc_symbol_mangling/Cargo.toml +++ b/compiler/rustc_symbol_mangling/Cargo.toml @@ -15,6 +15,7 @@ rustc_middle = { path = "../rustc_middle" } rustc_session = { path = "../rustc_session" } rustc_span = { path = "../rustc_span" } rustc_target = { path = "../rustc_target" } +rustc_trait_selection = { path = "../rustc_trait_selection" } tracing = "0.1" twox-hash = "1.6.3" # tidy-alphabetical-end diff --git a/compiler/rustc_symbol_mangling/src/lib.rs b/compiler/rustc_symbol_mangling/src/lib.rs index 02bb1fde75c1b..0588af9bda72a 100644 --- a/compiler/rustc_symbol_mangling/src/lib.rs +++ b/compiler/rustc_symbol_mangling/src/lib.rs @@ -90,6 +90,7 @@ #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")] #![doc(rust_logo)] #![feature(rustdoc_internals)] +#![feature(let_chains)] #![allow(internal_features)] #[macro_use] diff --git a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs index 367fec0e8fcb7..9406038232d1f 100644 --- a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs +++ b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs @@ -11,6 +11,7 @@ use rustc_data_structures::base_n; use rustc_data_structures::fx::FxHashMap; use rustc_hir as hir; use rustc_middle::ty::layout::IntegerExt; +use rustc_middle::ty::TypeVisitableExt; use rustc_middle::ty::{ self, Const, ExistentialPredicate, FloatTy, FnSig, Instance, IntTy, List, Region, RegionKind, TermKind, Ty, TyCtxt, UintTy, @@ -21,7 +22,9 @@ use rustc_span::sym; use rustc_target::abi::call::{Conv, FnAbi, PassMode}; use rustc_target::abi::Integer; use rustc_target::spec::abi::Abi; +use rustc_trait_selection::traits; use std::fmt::Write as _; +use std::iter; use crate::typeid::TypeIdOptions; @@ -1115,51 +1118,46 @@ pub fn typeid_for_instance<'tcx>( instance.args = strip_receiver_auto(tcx, instance.args) } + if let Some(impl_id) = tcx.impl_of_method(instance.def_id()) + && let Some(trait_ref) = tcx.impl_trait_ref(impl_id) + { + let impl_method = tcx.associated_item(instance.def_id()); + let method_id = impl_method + .trait_item_def_id + .expect("Part of a trait implementation, but not linked to the def_id?"); + let trait_method = tcx.associated_item(method_id); + if traits::is_vtable_safe_method(tcx, trait_ref.skip_binder().def_id, trait_method) { + // Trait methods will have a Self polymorphic parameter, where the concreteized + // implementatation will not. We need to walk back to the more general trait method + let trait_ref = tcx.instantiate_and_normalize_erasing_regions( + instance.args, + ty::ParamEnv::reveal_all(), + trait_ref, + ); + let invoke_ty = trait_object_ty(tcx, ty::Binder::dummy(trait_ref)); + + // At the call site, any call to this concrete function through a vtable will be + // `Virtual(method_id, idx)` with appropriate arguments for the method. Since we have the + // original method id, and we've recovered the trait arguments, we can make the callee + // instance we're computing the alias set for match the caller instance. + // + // Right now, our code ignores the vtable index everywhere, so we use 0 as a placeholder. + // If we ever *do* start encoding the vtable index, we will need to generate an alias set + // based on which vtables we are putting this method into, as there will be more than one + // index value when supertraits are involved. + instance.def = ty::InstanceDef::Virtual(method_id, 0); + let abstract_trait_args = + tcx.mk_args_trait(invoke_ty, trait_ref.args.into_iter().skip(1)); + instance.args = instance.args.rebase_onto(tcx, impl_id, abstract_trait_args); + } + } + let fn_abi = tcx .fn_abi_of_instance(tcx.param_env(instance.def_id()).and((instance, ty::List::empty()))) .unwrap_or_else(|instance| { bug!("typeid_for_instance: couldn't get fn_abi of instance {:?}", instance) }); - // If this instance is a method and self is a reference, get the impl it belongs to - let impl_def_id = tcx.impl_of_method(instance.def_id()); - if impl_def_id.is_some() && !fn_abi.args.is_empty() && fn_abi.args[0].layout.ty.is_ref() { - // If this impl is not an inherent impl, get the trait it implements - if let Some(trait_ref) = tcx.impl_trait_ref(impl_def_id.unwrap()) { - // Transform the concrete self into a reference to a trait object - let existential_predicate = trait_ref.map_bound(|trait_ref| { - ty::ExistentialPredicate::Trait(ty::ExistentialTraitRef::erase_self_ty( - tcx, trait_ref, - )) - }); - let existential_predicates = tcx.mk_poly_existential_predicates(&[ty::Binder::dummy( - existential_predicate.skip_binder(), - )]); - // Is the concrete self mutable? - let self_ty = if fn_abi.args[0].layout.ty.is_mutable_ptr() { - Ty::new_mut_ref( - tcx, - tcx.lifetimes.re_erased, - Ty::new_dynamic(tcx, existential_predicates, tcx.lifetimes.re_erased, ty::Dyn), - ) - } else { - Ty::new_imm_ref( - tcx, - tcx.lifetimes.re_erased, - Ty::new_dynamic(tcx, existential_predicates, tcx.lifetimes.re_erased, ty::Dyn), - ) - }; - - // Replace the concrete self in an fn_abi clone by the reference to a trait object - let mut fn_abi = fn_abi.clone(); - // HACK(rcvalle): It is okay to not replace or update the entire ArgAbi here because the - // other fields are never used. - fn_abi.args[0].layout.ty = self_ty; - - return typeid_for_fnabi(tcx, &fn_abi, options); - } - } - typeid_for_fnabi(tcx, fn_abi, options) } @@ -1182,3 +1180,36 @@ fn strip_receiver_auto<'tcx>( let new_rcvr = Ty::new_dynamic(tcx, filtered_preds, *lifetime, *kind); tcx.mk_args_trait(new_rcvr, args.into_iter().skip(1)) } + +fn trait_object_ty<'tcx>(tcx: TyCtxt<'tcx>, poly_trait_ref: ty::PolyTraitRef<'tcx>) -> Ty<'tcx> { + assert!(!poly_trait_ref.has_non_region_param()); + let principal_pred = poly_trait_ref.map_bound(|trait_ref| { + ty::ExistentialPredicate::Trait(ty::ExistentialTraitRef::erase_self_ty(tcx, trait_ref)) + }); + let mut assoc_preds: Vec<_> = traits::supertraits(tcx, poly_trait_ref) + .flat_map(|super_poly_trait_ref| { + tcx.associated_items(super_poly_trait_ref.def_id()) + .in_definition_order() + .filter(|item| item.kind == ty::AssocKind::Type) + .map(move |assoc_ty| { + super_poly_trait_ref.map_bound(|super_trait_ref| { + let alias_ty = ty::AliasTy::new(tcx, assoc_ty.def_id, super_trait_ref.args); + let resolved = tcx.normalize_erasing_regions( + ty::ParamEnv::reveal_all(), + alias_ty.to_ty(tcx), + ); + ty::ExistentialPredicate::Projection(ty::ExistentialProjection { + def_id: assoc_ty.def_id, + args: ty::ExistentialTraitRef::erase_self_ty(tcx, super_trait_ref).args, + term: resolved.into(), + }) + }) + }) + }) + .collect(); + assoc_preds.sort_by(|a, b| a.skip_binder().stable_cmp(tcx, &b.skip_binder())); + let preds = tcx.mk_poly_existential_predicates_from_iter( + iter::once(principal_pred).chain(assoc_preds.into_iter()), + ); + Ty::new_dynamic(tcx, preds, tcx.lifetimes.re_erased, ty::Dyn) +} diff --git a/tests/ui/sanitizer/cfi-complex-receiver.rs b/tests/ui/sanitizer/cfi-complex-receiver.rs new file mode 100644 index 0000000000000..c3e59258db207 --- /dev/null +++ b/tests/ui/sanitizer/cfi-complex-receiver.rs @@ -0,0 +1,42 @@ +// Check that more complex receivers work: +// * Arc as for custom receivers +// * &dyn Bar for type constraints + +//@ needs-sanitizer-cfi +// FIXME(#122848) Remove only-linux once OSX CFI binaries work +//@ only-linux +//@ compile-flags: --crate-type=bin -Cprefer-dynamic=off -Clto -Zsanitizer=cfi +//@ compile-flags: -C target-feature=-crt-static -C codegen-units=1 -C opt-level=0 +//@ run-pass + +use std::sync::Arc; + +trait Foo { + fn foo(self: Arc); +} + +struct FooImpl; + +impl Foo for FooImpl { + fn foo(self: Arc) {} +} + +trait Bar { + type T; + fn bar(&self) -> Self::T; +} + +struct BarImpl; + +impl Bar for BarImpl { + type T = i32; + fn bar(&self) -> Self::T { 7 } +} + +fn main() { + let foo: Arc = Arc::new(FooImpl); + foo.foo(); + + let bar: &dyn Bar = &BarImpl; + assert_eq!(bar.bar(), 7); +} From 50b49aec3639ad59bf6afbfba25bcfcc24d7cf1c Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Mon, 25 Mar 2024 10:33:54 +1100 Subject: [PATCH 46/54] Temporarily remove nnethercote from the review rotation. I will be on vacation for the next three weeks. I will re-add myself when I return. --- triagebot.toml | 4 ---- 1 file changed, 4 deletions(-) diff --git a/triagebot.toml b/triagebot.toml index 2bcc77ae43323..a42bafe148c5f 100644 --- a/triagebot.toml +++ b/triagebot.toml @@ -775,7 +775,6 @@ compiler-team = [ compiler-team-contributors = [ "@TaKO8Ki", "@Nadrieril", - "@nnethercote", "@fmease", "@fee1-dead", ] @@ -831,17 +830,14 @@ parser = [ "@compiler-errors", "@davidtwco", "@estebank", - "@nnethercote", "@petrochenkov", "@spastorino", ] lexer = [ - "@nnethercote", "@petrochenkov", "@estebank", ] arena = [ - "@nnethercote", "@spastorino", ] mir = [ From 42066b029f3009518e2ba8c7bd20f5781b180b8f Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 13 Mar 2024 15:34:05 +1100 Subject: [PATCH 47/54] Inline and remove `Parser::parse_expr_tuple_field_access_float`. It has a single call site, and afterwards all the calls to `parse_expr_tuple_field_access` are in a single method, which is nice. --- compiler/rustc_parse/src/parser/expr.rs | 74 +++++++++++++------------ 1 file changed, 38 insertions(+), 36 deletions(-) diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index fe17eba0d7b8b..cf7771f87a8c9 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -1005,7 +1005,44 @@ impl<'a> Parser<'a> { Ok(self.parse_expr_tuple_field_access(lo, base, symbol, suffix, None)) } token::Literal(token::Lit { kind: token::Float, symbol, suffix }) => { - Ok(self.parse_expr_tuple_field_access_float(lo, base, symbol, suffix)) + Ok(match self.break_up_float(symbol, self.token.span) { + // 1e2 + DestructuredFloat::Single(sym, _sp) => { + self.parse_expr_tuple_field_access(lo, base, sym, suffix, None) + } + // 1. + DestructuredFloat::TrailingDot(sym, ident_span, dot_span) => { + assert!(suffix.is_none()); + self.token = Token::new(token::Ident(sym, IdentIsRaw::No), ident_span); + let next_token = (Token::new(token::Dot, dot_span), self.token_spacing); + self.parse_expr_tuple_field_access(lo, base, sym, None, Some(next_token)) + } + // 1.2 | 1.2e3 + DestructuredFloat::MiddleDot( + symbol1, + ident1_span, + dot_span, + symbol2, + ident2_span, + ) => { + self.token = Token::new(token::Ident(symbol1, IdentIsRaw::No), ident1_span); + // This needs to be `Spacing::Alone` to prevent regressions. + // See issue #76399 and PR #76285 for more details + let next_token1 = (Token::new(token::Dot, dot_span), Spacing::Alone); + let base1 = self.parse_expr_tuple_field_access( + lo, + base, + symbol1, + None, + Some(next_token1), + ); + let next_token2 = + Token::new(token::Ident(symbol2, IdentIsRaw::No), ident2_span); + self.bump_with((next_token2, self.token_spacing)); // `.` + self.parse_expr_tuple_field_access(lo, base1, symbol2, suffix, None) + } + DestructuredFloat::Error => base, + }) } _ => { self.error_unexpected_after_dot(); @@ -1119,41 +1156,6 @@ impl<'a> Parser<'a> { } } - fn parse_expr_tuple_field_access_float( - &mut self, - lo: Span, - base: P, - float: Symbol, - suffix: Option, - ) -> P { - match self.break_up_float(float, self.token.span) { - // 1e2 - DestructuredFloat::Single(sym, _sp) => { - self.parse_expr_tuple_field_access(lo, base, sym, suffix, None) - } - // 1. - DestructuredFloat::TrailingDot(sym, ident_span, dot_span) => { - assert!(suffix.is_none()); - self.token = Token::new(token::Ident(sym, IdentIsRaw::No), ident_span); - let next_token = (Token::new(token::Dot, dot_span), self.token_spacing); - self.parse_expr_tuple_field_access(lo, base, sym, None, Some(next_token)) - } - // 1.2 | 1.2e3 - DestructuredFloat::MiddleDot(symbol1, ident1_span, dot_span, symbol2, ident2_span) => { - self.token = Token::new(token::Ident(symbol1, IdentIsRaw::No), ident1_span); - // This needs to be `Spacing::Alone` to prevent regressions. - // See issue #76399 and PR #76285 for more details - let next_token1 = (Token::new(token::Dot, dot_span), Spacing::Alone); - let base1 = - self.parse_expr_tuple_field_access(lo, base, symbol1, None, Some(next_token1)); - let next_token2 = Token::new(token::Ident(symbol2, IdentIsRaw::No), ident2_span); - self.bump_with((next_token2, self.token_spacing)); // `.` - self.parse_expr_tuple_field_access(lo, base1, symbol2, suffix, None) - } - DestructuredFloat::Error => base, - } - } - /// Parse the field access used in offset_of, matched by `$(e:expr)+`. /// Currently returns a list of idents. However, it should be possible in /// future to also do array indices, which might be arbitrary expressions. From 90eeb3d6817303469059041ef7c8c57f3508f476 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 13 Mar 2024 15:45:27 +1100 Subject: [PATCH 48/54] Remove `next_token` handling from `parse_expr_tuple_field_access`. It's clearer at the call site. --- compiler/rustc_parse/src/parser/expr.rs | 28 +++++++++---------------- 1 file changed, 10 insertions(+), 18 deletions(-) diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index cf7771f87a8c9..50589ad3f1260 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -1002,20 +1002,22 @@ impl<'a> Parser<'a> { match self.token.uninterpolate().kind { token::Ident(..) => self.parse_dot_suffix(base, lo), token::Literal(token::Lit { kind: token::Integer, symbol, suffix }) => { - Ok(self.parse_expr_tuple_field_access(lo, base, symbol, suffix, None)) + self.bump(); + Ok(self.parse_expr_tuple_field_access(lo, base, symbol, suffix)) } token::Literal(token::Lit { kind: token::Float, symbol, suffix }) => { Ok(match self.break_up_float(symbol, self.token.span) { // 1e2 DestructuredFloat::Single(sym, _sp) => { - self.parse_expr_tuple_field_access(lo, base, sym, suffix, None) + self.bump(); + self.parse_expr_tuple_field_access(lo, base, sym, suffix) } // 1. DestructuredFloat::TrailingDot(sym, ident_span, dot_span) => { assert!(suffix.is_none()); self.token = Token::new(token::Ident(sym, IdentIsRaw::No), ident_span); - let next_token = (Token::new(token::Dot, dot_span), self.token_spacing); - self.parse_expr_tuple_field_access(lo, base, sym, None, Some(next_token)) + self.bump_with((Token::new(token::Dot, dot_span), self.token_spacing)); + self.parse_expr_tuple_field_access(lo, base, sym, None) } // 1.2 | 1.2e3 DestructuredFloat::MiddleDot( @@ -1028,18 +1030,13 @@ impl<'a> Parser<'a> { self.token = Token::new(token::Ident(symbol1, IdentIsRaw::No), ident1_span); // This needs to be `Spacing::Alone` to prevent regressions. // See issue #76399 and PR #76285 for more details - let next_token1 = (Token::new(token::Dot, dot_span), Spacing::Alone); - let base1 = self.parse_expr_tuple_field_access( - lo, - base, - symbol1, - None, - Some(next_token1), - ); + self.bump_with((Token::new(token::Dot, dot_span), Spacing::Alone)); + let base1 = self.parse_expr_tuple_field_access(lo, base, symbol1, None); let next_token2 = Token::new(token::Ident(symbol2, IdentIsRaw::No), ident2_span); self.bump_with((next_token2, self.token_spacing)); // `.` - self.parse_expr_tuple_field_access(lo, base1, symbol2, suffix, None) + self.bump(); + self.parse_expr_tuple_field_access(lo, base1, symbol2, suffix) } DestructuredFloat::Error => base, }) @@ -1263,12 +1260,7 @@ impl<'a> Parser<'a> { base: P, field: Symbol, suffix: Option, - next_token: Option<(Token, Spacing)>, ) -> P { - match next_token { - Some(next_token) => self.bump_with(next_token), - None => self.bump(), - } let span = self.prev_token.span; let field = ExprKind::Field(base, Ident::new(field, span)); if let Some(suffix) = suffix { From 9c091160dc57aa5224a35e6755c357f7089ff2e5 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 13 Mar 2024 15:59:41 +1100 Subject: [PATCH 49/54] Change `parse_expr_tuple_field_access`. Pass in the span for the field rather than using `prev_token`. Also rename it `mk_expr_tuple_field_access`, because it doesn't do any actual parsing, it just creates an expression with what it's given. Not much of a clarity win by itself, but unlocks additional subsequent simplifications. --- compiler/rustc_parse/src/parser/expr.rs | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index 50589ad3f1260..f96e44eb0f761 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -1002,22 +1002,25 @@ impl<'a> Parser<'a> { match self.token.uninterpolate().kind { token::Ident(..) => self.parse_dot_suffix(base, lo), token::Literal(token::Lit { kind: token::Integer, symbol, suffix }) => { + let ident_span = self.token.span; self.bump(); - Ok(self.parse_expr_tuple_field_access(lo, base, symbol, suffix)) + Ok(self.mk_expr_tuple_field_access(lo, ident_span, base, symbol, suffix)) } token::Literal(token::Lit { kind: token::Float, symbol, suffix }) => { Ok(match self.break_up_float(symbol, self.token.span) { // 1e2 DestructuredFloat::Single(sym, _sp) => { + let ident_span = self.token.span; self.bump(); - self.parse_expr_tuple_field_access(lo, base, sym, suffix) + self.mk_expr_tuple_field_access(lo, ident_span, base, sym, suffix) } // 1. DestructuredFloat::TrailingDot(sym, ident_span, dot_span) => { assert!(suffix.is_none()); self.token = Token::new(token::Ident(sym, IdentIsRaw::No), ident_span); + let ident_span = self.token.span; self.bump_with((Token::new(token::Dot, dot_span), self.token_spacing)); - self.parse_expr_tuple_field_access(lo, base, sym, None) + self.mk_expr_tuple_field_access(lo, ident_span, base, sym, None) } // 1.2 | 1.2e3 DestructuredFloat::MiddleDot( @@ -1030,13 +1033,16 @@ impl<'a> Parser<'a> { self.token = Token::new(token::Ident(symbol1, IdentIsRaw::No), ident1_span); // This needs to be `Spacing::Alone` to prevent regressions. // See issue #76399 and PR #76285 for more details + let ident_span = self.token.span; self.bump_with((Token::new(token::Dot, dot_span), Spacing::Alone)); - let base1 = self.parse_expr_tuple_field_access(lo, base, symbol1, None); + let base1 = + self.mk_expr_tuple_field_access(lo, ident_span, base, symbol1, None); let next_token2 = Token::new(token::Ident(symbol2, IdentIsRaw::No), ident2_span); self.bump_with((next_token2, self.token_spacing)); // `.` + let ident_span = self.token.span; self.bump(); - self.parse_expr_tuple_field_access(lo, base1, symbol2, suffix) + self.mk_expr_tuple_field_access(lo, ident_span, base1, symbol2, suffix) } DestructuredFloat::Error => base, }) @@ -1254,19 +1260,18 @@ impl<'a> Parser<'a> { Ok(fields.into_iter().collect()) } - fn parse_expr_tuple_field_access( + fn mk_expr_tuple_field_access( &mut self, lo: Span, + ident_span: Span, base: P, field: Symbol, suffix: Option, ) -> P { - let span = self.prev_token.span; - let field = ExprKind::Field(base, Ident::new(field, span)); if let Some(suffix) = suffix { - self.expect_no_tuple_index_suffix(span, suffix); + self.expect_no_tuple_index_suffix(ident_span, suffix); } - self.mk_expr(lo.to(span), field) + self.mk_expr(lo.to(ident_span), ExprKind::Field(base, Ident::new(field, ident_span))) } /// Parse a function call expression, `expr(...)`. From dce0f7f5c2a62a5aabb1d02351473d6f2b125541 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Thu, 21 Mar 2024 16:14:56 +1100 Subject: [PATCH 50/54] Clarify `parse_dot_suffix_expr`. For the `MiddleDot` case, current behaviour: - For a case like `1.2`, `sym1` is `1` and `sym2` is `2`, and `self.token` holds `1.2`. - It creates a new ident token from `sym1` that it puts into `self.token`. - Then it does `bump_with` with a new dot token, which moves the `sym1` token into `prev_token`. - Then it does `bump_with` with a new ident token from `sym2`, which moves the `dot` token into `prev_token` and discards the `sym1` token. - Then it does `bump`, which puts whatever is next into `self.token`, moves the `sym2` token into `prev_token`, and discards the `dot` token altogether. New behaviour: - Skips creating and inserting the `sym1` and dot tokens, because they are unnecessary. - This also demonstrates that the comment about `Spacing::Alone` is wrong -- that value is never used. That comment was added in #77250, and AFAICT it has always been incorrect. The commit also expands comments. I found this code hard to read previously, the examples in comments make it easier. --- compiler/rustc_parse/src/parser/expr.rs | 35 ++++++++++++++----------- 1 file changed, 19 insertions(+), 16 deletions(-) diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index f96e44eb0f761..7e317c3df1465 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -16,7 +16,6 @@ use core::mem; use core::ops::ControlFlow; use rustc_ast::ptr::P; use rustc_ast::token::{self, Delimiter, Token, TokenKind}; -use rustc_ast::tokenstream::Spacing; use rustc_ast::util::case::Case; use rustc_ast::util::classify; use rustc_ast::util::parser::{prec_let_scrutinee_needs_par, AssocOp, Fixity}; @@ -999,6 +998,8 @@ impl<'a> Parser<'a> { } pub fn parse_dot_suffix_expr(&mut self, lo: Span, base: P) -> PResult<'a, P> { + // At this point we've consumed something like `expr.` and `self.token` holds the token + // after the dot. match self.token.uninterpolate().kind { token::Ident(..) => self.parse_dot_suffix(base, lo), token::Literal(token::Lit { kind: token::Integer, symbol, suffix }) => { @@ -1010,39 +1011,41 @@ impl<'a> Parser<'a> { Ok(match self.break_up_float(symbol, self.token.span) { // 1e2 DestructuredFloat::Single(sym, _sp) => { + // `foo.1e2`: a single complete dot access, fully consumed. We end up with + // the `1e2` token in `self.prev_token` and the following token in + // `self.token`. let ident_span = self.token.span; self.bump(); self.mk_expr_tuple_field_access(lo, ident_span, base, sym, suffix) } // 1. DestructuredFloat::TrailingDot(sym, ident_span, dot_span) => { + // `foo.1.`: a single complete dot access and the start of another. + // We end up with the `sym` (`1`) token in `self.prev_token` and a dot in + // `self.token`. assert!(suffix.is_none()); self.token = Token::new(token::Ident(sym, IdentIsRaw::No), ident_span); - let ident_span = self.token.span; self.bump_with((Token::new(token::Dot, dot_span), self.token_spacing)); self.mk_expr_tuple_field_access(lo, ident_span, base, sym, None) } // 1.2 | 1.2e3 DestructuredFloat::MiddleDot( - symbol1, + sym1, ident1_span, - dot_span, - symbol2, + _dot_span, + sym2, ident2_span, ) => { - self.token = Token::new(token::Ident(symbol1, IdentIsRaw::No), ident1_span); - // This needs to be `Spacing::Alone` to prevent regressions. - // See issue #76399 and PR #76285 for more details - let ident_span = self.token.span; - self.bump_with((Token::new(token::Dot, dot_span), Spacing::Alone)); - let base1 = - self.mk_expr_tuple_field_access(lo, ident_span, base, symbol1, None); + // `foo.1.2` (or `foo.1.2e3`): two complete dot accesses. We end up with + // the `sym2` (`2` or `2e3`) token in `self.prev_token` and the following + // token in `self.token`. let next_token2 = - Token::new(token::Ident(symbol2, IdentIsRaw::No), ident2_span); - self.bump_with((next_token2, self.token_spacing)); // `.` - let ident_span = self.token.span; + Token::new(token::Ident(sym2, IdentIsRaw::No), ident2_span); + self.bump_with((next_token2, self.token_spacing)); self.bump(); - self.mk_expr_tuple_field_access(lo, ident_span, base1, symbol2, suffix) + let base1 = + self.mk_expr_tuple_field_access(lo, ident1_span, base, sym1, None); + self.mk_expr_tuple_field_access(lo, ident2_span, base1, sym2, suffix) } DestructuredFloat::Error => base, }) From 1bbab7148bb0a44b59ce7a98db726b66ea8e7c00 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Sun, 24 Mar 2024 15:11:39 +1100 Subject: [PATCH 51/54] Add more comments to the bootstrap code that handles `tests/coverage` --- src/bootstrap/src/core/build_steps/test.rs | 65 ++++++++++++++++------ 1 file changed, 49 insertions(+), 16 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index 6d3163b90b10c..f22a9ca604ee2 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -1289,9 +1289,9 @@ macro_rules! test_definitions { /// Adapted from [`test_definitions`]. macro_rules! coverage_test_alias { ($name:ident { - alias_and_mode: $alias_and_mode:expr, - default: $default:expr, - only_hosts: $only_hosts:expr $(,)? + alias_and_mode: $alias_and_mode:expr, // &'static str + default: $default:expr, // bool + only_hosts: $only_hosts:expr $(,)? // bool }) => { #[derive(Debug, Clone, PartialEq, Eq, Hash)] pub struct $name { @@ -1309,6 +1309,8 @@ macro_rules! coverage_test_alias { const ONLY_HOSTS: bool = $only_hosts; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { + // Register the mode name as a command-line alias. + // This allows `x test coverage-map` and `x test coverage-run`. run.alias($alias_and_mode) } @@ -1319,8 +1321,7 @@ macro_rules! coverage_test_alias { } fn run(self, builder: &Builder<'_>) { - Coverage { compiler: self.compiler, target: self.target } - .run_unified_suite(builder, Self::MODE) + Coverage::run_coverage_tests(builder, self.compiler, self.target, Self::MODE); } } }; @@ -1449,11 +1450,20 @@ host_test!(RunMakeFullDeps { default_test!(Assembly { path: "tests/assembly", mode: "assembly", suite: "assembly" }); -/// Custom test step that is responsible for running the coverage tests -/// in multiple different modes. +/// Coverage tests are a bit more complicated than other test suites, because +/// we want to run the same set of test files in multiple different modes, +/// in a way that's convenient and flexible when invoked manually. +/// +/// This combined step runs the specified tests (or all of `tests/coverage`) +/// in both "coverage-map" and "coverage-run" modes. +/// +/// Used by: +/// - `x test coverage` +/// - `x test tests/coverage` +/// - `x test tests/coverage/trivial.rs` (etc) /// -/// Each individual mode also has its own alias that will run the tests in -/// just that mode. +/// (Each individual mode also has its own step that will run the tests in +/// just that mode.) #[derive(Debug, Clone, PartialEq, Eq, Hash)] pub struct Coverage { pub compiler: Compiler, @@ -1464,24 +1474,41 @@ impl Coverage { const PATH: &'static str = "tests/coverage"; const SUITE: &'static str = "coverage"; - fn run_unified_suite(&self, builder: &Builder<'_>, mode: &'static str) { + /// Runs the coverage test suite (or a user-specified subset) in one mode. + /// + /// This same function is used by the multi-mode step ([`Coverage`]) and by + /// the single-mode steps ([`CoverageMap`] and [`CoverageRun`]), to help + /// ensure that they all behave consistently with each other, regardless of + /// how the coverage tests have been invoked. + fn run_coverage_tests( + builder: &Builder<'_>, + compiler: Compiler, + target: TargetSelection, + mode: &'static str, + ) { + // Like many other test steps, we delegate to a `Compiletest` step to + // actually run the tests. (See `test_definitions!`.) builder.ensure(Compiletest { - compiler: self.compiler, - target: self.target, + compiler, + target, mode, suite: Self::SUITE, path: Self::PATH, compare_mode: None, - }) + }); } } impl Step for Coverage { type Output = (); + // We rely on the individual CoverageMap/CoverageRun steps to run themselves. const DEFAULT: bool = false; + // When manually invoked, try to run as much as possible. + // Compiletest will automatically skip the "coverage-run" tests if necessary. const ONLY_HOSTS: bool = false; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { + // Take responsibility for command-line paths within `tests/coverage`. run.suite_path(Self::PATH) } @@ -1492,20 +1519,26 @@ impl Step for Coverage { } fn run(self, builder: &Builder<'_>) { - self.run_unified_suite(builder, CoverageMap::MODE); - self.run_unified_suite(builder, CoverageRun::MODE); + // Run the specified coverage tests (possibly all of them) in both modes. + Self::run_coverage_tests(builder, self.compiler, self.target, CoverageMap::MODE); + Self::run_coverage_tests(builder, self.compiler, self.target, CoverageRun::MODE); } } -// Aliases for running the coverage tests in only one mode. +// Runs `tests/coverage` in "coverage-map" mode only. +// Used by `x test` and `x test coverage-map`. coverage_test_alias!(CoverageMap { alias_and_mode: "coverage-map", default: true, only_hosts: false, }); +// Runs `tests/coverage` in "coverage-run" mode only. +// Used by `x test` and `x test coverage-run`. coverage_test_alias!(CoverageRun { alias_and_mode: "coverage-run", default: true, + // Compiletest knows how to automatically skip these tests when cross-compiling, + // but skipping the whole step here makes it clearer that they haven't run at all. only_hosts: true, }); From 8c219af8bf9c21d4c35b8106ab7fe0d9170c533d Mon Sep 17 00:00:00 2001 From: Guillaume Gomez Date: Mon, 25 Mar 2024 11:57:37 +0100 Subject: [PATCH 52/54] Move `--sysroot` argument out of the argument file to fix miri issue --- src/librustdoc/doctest.rs | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/src/librustdoc/doctest.rs b/src/librustdoc/doctest.rs index 211921715b00c..22a3cf4d44db8 100644 --- a/src/librustdoc/doctest.rs +++ b/src/librustdoc/doctest.rs @@ -67,9 +67,6 @@ pub(crate) fn generate_args_file(file_path: &Path, options: &RustdocOptions) -> } } - if let Some(sysroot) = &options.maybe_sysroot { - content.push(format!("--sysroot={}", sysroot.display())); - } for lib_str in &options.lib_strs { content.push(format!("-L{lib_str}")); } @@ -411,6 +408,10 @@ fn run_test( compiler.arg(&format!("@{}", rustdoc_options.arg_file.display())); + if let Some(sysroot) = &rustdoc_options.maybe_sysroot { + compiler.arg(format!("--sysroot={}", sysroot.display())); + } + compiler.arg("--edition").arg(&edition.to_string()); compiler.env("UNSTABLE_RUSTDOC_TEST_PATH", path); compiler.env("UNSTABLE_RUSTDOC_TEST_LINE", format!("{}", line as isize - line_offset as isize)); @@ -950,6 +951,7 @@ pub(crate) struct IndividualTestOptions { runtool_args: Vec, target: TargetTriple, test_id: String, + maybe_sysroot: Option, } impl IndividualTestOptions { @@ -982,6 +984,7 @@ impl IndividualTestOptions { runtool_args: options.runtool_args.clone(), target: options.target.clone(), test_id, + maybe_sysroot: options.maybe_sysroot.clone(), } } } From 5b1319c754775460dd479d76826da1ed4d8552ae Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Mon, 25 Mar 2024 17:17:55 +0100 Subject: [PATCH 53/54] Preparing for merge from rustc --- src/tools/miri/rust-version | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools/miri/rust-version b/src/tools/miri/rust-version index 73d5626e9266d..fa06a069d541e 100644 --- a/src/tools/miri/rust-version +++ b/src/tools/miri/rust-version @@ -1 +1 @@ -9b8d12cf4c2311203aea83315552b15993bd4f81 +cb7c63606e53715f94f3ba04d38e50772e4cd23d From 0d4ef69d66ed32f23fc1006fdd26911e42eba460 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Mon, 25 Mar 2024 17:33:02 +0100 Subject: [PATCH 54/54] support '--sysroot=' form of setting the sysroot as well --- src/tools/miri/src/bin/miri.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools/miri/src/bin/miri.rs b/src/tools/miri/src/bin/miri.rs index c12382527e7bf..4904a489eae8f 100644 --- a/src/tools/miri/src/bin/miri.rs +++ b/src/tools/miri/src/bin/miri.rs @@ -276,7 +276,7 @@ fn run_compiler( // If no `--sysroot` is given, the `MIRI_SYSROOT` env var is consulted to find where // that sysroot lives, and that is passed to rustc. let sysroot_flag = "--sysroot"; - if !args.iter().any(|e| e == sysroot_flag) { + if !args.iter().any(|e| e.starts_with(sysroot_flag)) { // Using the built-in default here would be plain wrong, so we *require* // the env var to make sure things make sense. let miri_sysroot = env::var("MIRI_SYSROOT").unwrap_or_else(|_| {