TODO

Target release: 0.1.4
=====================

* CFG-based liveness analysis and dead code elimination
* global copy and constant propagation
* jitruby (in case copyright issues are resolved)
* sync jitplus with jit (jump tables, compile driver, debug)
* fix catch/throw within finally
* get rid of manual rules
* add direct conversion opcodes to/from float32 and float64
* add rounding towards zero
* try to be smarter with %rax for variadic functions on x86-64

Target Release: 0.2.0
=====================

* linear scan register allocation
* improve exception handling
* align function prolog and basic blocks
* support cross-compilation 

Long-Term Tasks
===============

* comprehensive test suite
* ports to ppc, arm, sparc, alpha, coldfire, mips...
* more optimizations:
** redundancy elimination
** alias analysis
** strength reduction
** loop optimization
** array data type, ABCD
* tree-based IR and instruction selection ?
* instruction scheduling ?
* finish ELF writer/reader