diff options
| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-06-18 21:18:21 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-06-18 21:18:21 +0000 |
| commit | cd6d4352bc665727d4814e5e09ee855a59d77ba7 (patch) | |
| tree | 18346eb748f73dd96d5e095b9020a07865e4ba59 /llvm/test/CodeGen/X86 | |
| parent | ab009e9f4167b3ed1973db6de44ea543118c4688 (diff) | |
| download | bcm5719-llvm-cd6d4352bc665727d4814e5e09ee855a59d77ba7.tar.gz bcm5719-llvm-cd6d4352bc665727d4814e5e09ee855a59d77ba7.zip | |
[X86][SSSE3] Added examples of target shuffle combining failing to match undefs in shuffle masks
llvm-svn: 273097
Diffstat (limited to 'llvm/test/CodeGen/X86')
| -rw-r--r-- | llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll b/llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll index e6b46c42f79..54af924d2af 100644 --- a/llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll +++ b/llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll @@ -137,6 +137,34 @@ define <16 x i8> @combine_pshufb_psrldq(<16 x i8> %a0) { ret <16 x i8> %2 } +define <16 x i8> @combine_pshufb_as_unary_unpcklbw(<16 x i8> %a0) { +; SSE-LABEL: combine_pshufb_as_unary_unpcklbw: +; SSE: # BB#0: +; SSE-NEXT: pshufb {{.*#+}} xmm0 = xmm0[0,u,u,1,2,2,3,3,4,4,5,5,6,6,7,7] +; SSE-NEXT: retq +; +; AVX-LABEL: combine_pshufb_as_unary_unpcklbw: +; AVX: # BB#0: +; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,u,u,1,2,2,3,3,4,4,5,5,6,6,7,7] +; AVX-NEXT: retq + %1 = tail call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> %a0, <16 x i8> <i8 0, i8 undef, i8 undef, i8 1, i8 2, i8 2, i8 3, i8 3, i8 4, i8 4, i8 5, i8 5, i8 6, i8 6, i8 7, i8 7>) + ret <16 x i8> %1 +} + +define <16 x i8> @combine_pshufb_as_unary_unpckhwd(<16 x i8> %a0) { +; SSE-LABEL: combine_pshufb_as_unary_unpckhwd: +; SSE: # BB#0: +; SSE-NEXT: pshufb {{.*#+}} xmm0 = xmm0[8,9,8,9,10,11,10,11,12,13,12,13,14,15,u,u] +; SSE-NEXT: retq +; +; AVX-LABEL: combine_pshufb_as_unary_unpckhwd: +; AVX: # BB#0: +; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[8,9,8,9,10,11,10,11,12,13,12,13,14,15,u,u] +; AVX-NEXT: retq + %1 = tail call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> %a0, <16 x i8> <i8 8, i8 9, i8 8, i8 9, i8 10, i8 11, i8 10, i8 11, i8 12, i8 13, i8 12, i8 13, i8 14, i8 15, i8 undef, i8 undef>) + ret <16 x i8> %1 +} + define <16 x i8> @combine_unpckl_arg0_pshufb(<16 x i8> %a0, <16 x i8> %a1) { ; SSE-LABEL: combine_unpckl_arg0_pshufb: ; SSE: # BB#0: |
