1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-30 15:32:52 +01:00
llvm-mirror/test/Regression/CodeGen/X86/2006-05-08-CoalesceSubRegClass.ll

23 lines
630 B
LLVM
Raw Normal View History

2006-05-09 08:48:12 +02:00
; Coalescing from R32 to a subset R32_. Once another register coalescer bug is
; fixed, the movb should go away as well.
; RUN: llvm-as < %s | llc -march=x86 -relocation-model=static | grep 'movl' | wc -l
%B = external global uint
%C = external global ushort*
void %test(uint %A) {
%A = cast uint %A to ubyte
%tmp2 = load uint* %B
%tmp3 = and ubyte %A, 16
%tmp4 = shl uint %tmp2, ubyte %tmp3
store uint %tmp4, uint* %B
%tmp6 = shr uint %A, ubyte 3
%tmp = load ushort** %C
%tmp8 = cast ushort* %tmp to uint
%tmp9 = add uint %tmp8, %tmp6
%tmp9 = cast uint %tmp9 to ushort*
store ushort* %tmp9, ushort** %C
ret void
}