1 ; RUN: llc -o - %s -verify-machineinstrs 2 ; This used to crash when coalescing a regclass like GR16 which did not support 3 ; the sub_8bit_hi subregister with a class like GR16_ABCD that did. 4 target triple = "x86_64-apple-macosx10.10.0" 5 6 define void @test() #0 { 7 entry: 8 br i1 undef, label %loop, label %for.end597 9 10 loop: 11 %0 = load i16, i16* null, align 4 12 %1 = load i16, i16* undef, align 4 13 %or1 = or i16 %1, %0 14 %or2 = trunc i16 %or1 to i8 15 store i8 %or2, i8* undef, align 4 16 %2 = or i16 %1, %0 17 %or3 = lshr i16 %2, 8 18 %or4 = trunc i16 %or3 to i8 19 store i8 %or4, i8* undef, align 1 20 %3 = load i32, i32* undef, align 4 21 %4 = load i32, i32* undef, align 4 22 %or5 = or i32 %4, %3 23 store i32 %or5, i32* undef, align 4 24 store i32 0, i32* undef, align 4 25 br label %loop 26 27 for.end597: 28 ret void 29 } 30
