| ; RUN: llc -o - %s -verify-machineinstrs |
| ; This used to crash when coalescing a regclass like GR16 which did not support |
| ; the sub_8bit_hi subregister with a class like GR16_ABCD that did. |
| target triple = "x86_64-apple-macosx10.10.0" |
| |
| define void @test() #0 { |
| entry: |
| br i1 undef, label %loop, label %for.end597 |
| |
| loop: |
| %0 = load i16, i16* null, align 4 |
| %1 = load i16, i16* undef, align 4 |
| %or1 = or i16 %1, %0 |
| %or2 = trunc i16 %or1 to i8 |
| store i8 %or2, i8* undef, align 4 |
| %2 = or i16 %1, %0 |
| %or3 = lshr i16 %2, 8 |
| %or4 = trunc i16 %or3 to i8 |
| store i8 %or4, i8* undef, align 1 |
| %3 = load i32, i32* undef, align 4 |
| %4 = load i32, i32* undef, align 4 |
| %or5 = or i32 %4, %3 |
| store i32 %or5, i32* undef, align 4 |
| store i32 0, i32* undef, align 4 |
| br label %loop |
| |
| for.end597: |
| ret void |
| } |
