Added register allocation shell, and incomplete x86 restricter
Merge branch 'develop' into codegen
Merge branch 'codegen' into regalloc
Invoke regalloc() from x86
Added colalloc() ('snatch' algorithm)
Merge branch 'develop' into codegen
Merge branch 'codegen' into regalloc
Merge branch 'develop' into codegen
Merge branch 'codegen' into regalloc
User pointers for locations
Merge branch 'develop' into codegen
Merge branch 'codegen' into regalloc
Merge branch 'develop' into codegen
Merge branch 'develop' into regalloc
Merge branch 'develop' into codegen
Merge branch 'codegen' into regalloc
Merge branch 'develop' into codegen
Merge branch 'codegen' into regalloc
Now using it_t
Added overlap checking