| ; RUN: llc < %s -mtriple x86_64-unknown-unknown -mattr=mmx | FileCheck %s | |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" | |
| ; PR23246 | |
| ; We're really only interested in doing something sane with the shuffle. | |
| ; CHECK-LABEL: test: | |
| ; CHECK: movq2dq %mm0, %xmm0 | |
| ; CHECK-NEXT: pshufd {{.*}} xmm0 = xmm0[0,1,0,1] | |
| ; CHECK-NEXT: retq | |
| define <2 x i64> @test(x86_mmx %a) #0 { | |
| entry: | |
| %b = bitcast x86_mmx %a to <1 x i64> | |
| %s = shufflevector <1 x i64> %b, <1 x i64> undef, <2 x i32> <i32 undef, i32 0> | |
| ret <2 x i64> %s | |
| } | |
| attributes #0 = { nounwind } |