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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-07-06 14:52:24 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-07-06 14:52:24 +0000 |
| commit | 03641df383a5befa0acc9bbc676f50612ae1cc89 (patch) | |
| tree | ae721b3dad9a2fc42e98a3e40e9adc59531338df /llvm/test | |
| parent | 8fc2967a6af09beed699ec024c1d857e0141762a (diff) | |
| download | bcm5719-llvm-03641df383a5befa0acc9bbc676f50612ae1cc89.tar.gz bcm5719-llvm-03641df383a5befa0acc9bbc676f50612ae1cc89.zip | |
[X86][SSE4A] Add test showing missed opportunities to combine INSERTQI shuffle
llvm-svn: 307265
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/X86/vector-shuffle-combining-sse4a.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/vector-shuffle-combining-sse4a.ll b/llvm/test/CodeGen/X86/vector-shuffle-combining-sse4a.ll index 9d9c29121f8..a63c77bad1e 100644 --- a/llvm/test/CodeGen/X86/vector-shuffle-combining-sse4a.ll +++ b/llvm/test/CodeGen/X86/vector-shuffle-combining-sse4a.ll @@ -73,3 +73,23 @@ define <8 x i16> @combine_insertqi_pshufb_8i16(<8 x i16> %a0, <8 x i16> %a1) { %4 = bitcast <16 x i8> %3 to <8 x i16> ret <8 x i16> %4 } + +define <16 x i8> @combine_pshufb_insertqi_pshufb(<16 x i8> %a0, <16 x i8> %a1) { +; SSE-LABEL: combine_pshufb_insertqi_pshufb: +; SSE: # BB#0: +; SSE-NEXT: pshufb {{.*#+}} xmm0 = xmm0[7,6,5,4,3,2,1,0,u,u,u,u,u,u,u,u] +; SSE-NEXT: insertq {{.*#+}} xmm0 = xmm0[0],xmm1[0,1],xmm0[3,4,5,6,7,u,u,u,u,u,u,u,u] +; SSE-NEXT: pshufb {{.*#+}} xmm0 = xmm0[7,1,2,4,3,u,u,0,u,u,u,u,u,u,u,u] +; SSE-NEXT: retq +; +; AVX-LABEL: combine_pshufb_insertqi_pshufb: +; AVX: # BB#0: +; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[7,6,5,4,3,2,1,0,u,u,u,u,u,u,u,u] +; AVX-NEXT: insertq {{.*#+}} xmm0 = xmm0[0],xmm1[0,1],xmm0[3,4,5,6,7,u,u,u,u,u,u,u,u] +; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[7,1,2,4,3,u,u,0,u,u,u,u,u,u,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 7, i8 6, i8 5, i8 4, i8 3, i8 2, i8 1, i8 0, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef>) + %2 = shufflevector <16 x i8> %1, <16 x i8> %a1, <16 x i32> <i32 0, i32 16, i32 17, i32 3, i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef> + %3 = tail call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> %2, <16 x i8> <i8 7, i8 1, i8 2, i8 4, i8 3, i8 undef, i8 undef, i8 0, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef>) + ret <16 x i8> %3 +} |
