1 ; RUN: llc < %s -O0 -regalloc=linearscan -march=x86-64 -mattr=+mmx,+sse2 | FileCheck %s 2 ; PR4684 3 4 target datalayout = 5 "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" 6 target triple = "x86_64-apple-darwin9.8" 7 8 declare void @func2(x86_mmx) 9 10 define void @func1() nounwind { 11 12 ; This isn't spectacular, but it's MMX code at -O0... 13 ; CHECK: movq2dq %mm0, %xmm0 14 ; For now, handling of x86_mmx parameters in fast Isel is unimplemented, 15 ; so we get pretty poor code. The below is preferable. 16 ; CHEK: movl $2, %eax 17 ; CHEK: movd %rax, %mm0 18 ; CHEK: movd %mm0, %rdi 19 20 %tmp0 = bitcast <2 x i32><i32 0, i32 2> to x86_mmx 21 call void @func2(x86_mmx %tmp0) 22 ret void 23 } 24
