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1; RUN: llc < %s -mtriple x86_64-unknown-unknown | FileCheck %s
2
3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4
5; PR23246
6; We're really only interested in doing something sane with the shuffle.
7
8; CHECK-LABEL: test:
9; CHECK:      movq2dq %mm0, %xmm0
10; CHECK-NEXT: pshufd {{.*}} xmm0 = xmm0[0,1,0,1]
11; CHECK-NEXT: retq
12define <2 x i64> @test(x86_mmx %a) #0 {
13entry:
14  %b = bitcast x86_mmx %a to <1 x i64>
15  %s = shufflevector <1 x i64> %b, <1 x i64> undef, <2 x i32> <i32 undef, i32 0>
16  ret <2 x i64> %s
17}
18
19attributes #0 = { nounwind }
20