From bfc65d4e52a9f00ebfc6bd8c87fe50c9f7c8067a Mon Sep 17 00:00:00 2001
From: Lily Vulcano <millenomi@apple.com>
Date: Tue, 11 Dec 2018 12:36:17 -0800
Subject: [PATCH] [DNM] Change the symbol for the default Swift CFString class.

Required for the work in https://github.com/apple/swift-corelibs-foundation/pull/1799
---
 lib/CodeGen/CodeGenModule.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index 88c129a2cdc..63b0c582fc4 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -4050,8 +4050,8 @@ CodeGenModule::GetAddrOfConstantCFString(const StringLiteral *Literal) {
     case LangOptions::CoreFoundationABI::Swift: LLVM_FALLTHROUGH;
     case LangOptions::CoreFoundationABI::Swift5_0:
       CFConstantStringClassName =
-          Triple.isOSDarwin() ? "$s15SwiftFoundation19_NSCFConstantStringCN"
-                              : "$s10Foundation19_NSCFConstantStringCN";
+          Triple.isOSDarwin() ? "$s19SwiftFoundationSoil19_NSCFConstantStringCN"
+                              : "$s14FoundationSoil19_NSCFConstantStringCN";
       Ty = IntPtrTy;
       break;
     case LangOptions::CoreFoundationABI::Swift4_2: