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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-10-14 15:01:36 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-10-14 15:01:36 +0000 |
| commit | f367c27d2d0596028fcf64a3cf1f81a9b5eff5fc (patch) | |
| tree | 36839b8f09f60c06a4bade1d1e876d8d28bb12ce /llvm/test | |
| parent | 93638b751a7fe1ea4d89a8e9fa1db4dd52496a04 (diff) | |
| download | bcm5719-llvm-f367c27d2d0596028fcf64a3cf1f81a9b5eff5fc.tar.gz bcm5719-llvm-f367c27d2d0596028fcf64a3cf1f81a9b5eff5fc.zip | |
[X86][SSE] Support combining AND(EXTRACT(SHUF(X)), C) -> EXTRACT(SHUF(X))
If we are applying a byte mask to a value extracted from a shuffle, see if we can combine the mask into shuffle.
Fixes the last issue with PR22415
llvm-svn: 315807
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll b/llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll index 3abf0570abf..c17d45f6fd4 100644 --- a/llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll +++ b/llvm/test/CodeGen/X86/vector-shuffle-combining-ssse3.ll @@ -750,23 +750,20 @@ define <16 x i8> @constant_fold_pshufb_2() { define i32 @mask_zzz3_v16i8(<16 x i8> %a0) { ; SSSE3-LABEL: mask_zzz3_v16i8: ; SSSE3: # BB#0: -; SSSE3-NEXT: pshufb {{.*#+}} xmm0 = xmm0[8,10,12,14,8,10,12,14,0,2,4,6,8,10,12,14] +; SSSE3-NEXT: pshufb {{.*#+}} xmm0 = zero,zero,zero,xmm0[14,u,u,u,u,u,u,u,u,u,u,u,u] ; SSSE3-NEXT: movd %xmm0, %eax -; SSSE3-NEXT: andl $-16777216, %eax # imm = 0xFF000000 ; SSSE3-NEXT: retq ; ; SSE41-LABEL: mask_zzz3_v16i8: ; SSE41: # BB#0: -; SSE41-NEXT: pshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,8,10,12,14,0,2,4,6,8,10,12,14] +; SSE41-NEXT: pshufb {{.*#+}} xmm0 = xmm0[u,u,u,u,u,u,u,u,u,u,u,u],zero,zero,zero,xmm0[14] ; SSE41-NEXT: pextrd $3, %xmm0, %eax -; SSE41-NEXT: andl $-16777216, %eax # imm = 0xFF000000 ; SSE41-NEXT: retq ; ; AVX-LABEL: mask_zzz3_v16i8: ; AVX: # BB#0: -; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,8,10,12,14,0,2,4,6,8,10,12,14] +; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[u,u,u,u,u,u,u,u,u,u,u,u],zero,zero,zero,xmm0[14] ; AVX-NEXT: vpextrd $3, %xmm0, %eax -; AVX-NEXT: andl $-16777216, %eax # imm = 0xFF000000 ; AVX-NEXT: retq %1 = call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> %a0, <16 x i8> <i8 0, i8 2, i8 4, i8 6, i8 8, i8 10, i8 12, i8 14, i8 0, i8 2, i8 4, i8 6, i8 8, i8 10, i8 12, i8 14>) %2 = bitcast <16 x i8> %1 to <4 x i32> @@ -778,23 +775,20 @@ define i32 @mask_zzz3_v16i8(<16 x i8> %a0) { define i32 @mask_z1z3_v16i8(<16 x i8> %a0) { ; SSSE3-LABEL: mask_z1z3_v16i8: ; SSSE3: # BB#0: -; SSSE3-NEXT: pshufb {{.*#+}} xmm0 = xmm0[8,10,12,14,8,10,12,14,0,2,4,6,8,10,12,14] +; SSSE3-NEXT: pshufb {{.*#+}} xmm0 = zero,xmm0[10],zero,xmm0[14,u,u,u,u,u,u,u,u,u,u,u,u] ; SSSE3-NEXT: movd %xmm0, %eax -; SSSE3-NEXT: andl $-16711936, %eax # imm = 0xFF00FF00 ; SSSE3-NEXT: retq ; ; SSE41-LABEL: mask_z1z3_v16i8: ; SSE41: # BB#0: -; SSE41-NEXT: pshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,8,10,12,14,0,2,4,6,8,10,12,14] +; SSE41-NEXT: pshufb {{.*#+}} xmm0 = xmm0[u,u,u,u,u,u,u,u,u,u,u,u],zero,xmm0[10],zero,xmm0[14] ; SSE41-NEXT: pextrd $3, %xmm0, %eax -; SSE41-NEXT: andl $-16711936, %eax # imm = 0xFF00FF00 ; SSE41-NEXT: retq ; ; AVX-LABEL: mask_z1z3_v16i8: ; AVX: # BB#0: -; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,8,10,12,14,0,2,4,6,8,10,12,14] +; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[u,u,u,u,u,u,u,u,u,u,u,u],zero,xmm0[10],zero,xmm0[14] ; AVX-NEXT: vpextrd $3, %xmm0, %eax -; AVX-NEXT: andl $-16711936, %eax # imm = 0xFF00FF00 ; AVX-NEXT: retq %1 = call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> %a0, <16 x i8> <i8 0, i8 2, i8 4, i8 6, i8 8, i8 10, i8 12, i8 14, i8 0, i8 2, i8 4, i8 6, i8 8, i8 10, i8 12, i8 14>) %2 = bitcast <16 x i8> %1 to <4 x i32> @@ -806,16 +800,14 @@ define i32 @mask_z1z3_v16i8(<16 x i8> %a0) { define i32 @PR22415(double %a0) { ; SSE-LABEL: PR22415: ; SSE: # BB#0: -; SSE-NEXT: pshufb {{.*#+}} xmm0 = xmm0[0,2,4,u,u,u,u,u,u,u,u,u,u,u,u,u] +; SSE-NEXT: pshufb {{.*#+}} xmm0 = xmm0[0,2,4],zero,xmm0[u,u,u,u,u,u,u,u,u,u,u,u] ; SSE-NEXT: movd %xmm0, %eax -; SSE-NEXT: andl $16777215, %eax # imm = 0xFFFFFF ; SSE-NEXT: retq ; ; AVX-LABEL: PR22415: ; AVX: # BB#0: -; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,2,4,u,u,u,u,u,u,u,u,u,u,u,u,u] +; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,2,4],zero,xmm0[u,u,u,u,u,u,u,u,u,u,u,u] ; AVX-NEXT: vmovd %xmm0, %eax -; AVX-NEXT: andl $16777215, %eax # imm = 0xFFFFFF ; AVX-NEXT: retq %1 = bitcast double %a0 to <8 x i8> %2 = shufflevector <8 x i8> %1, <8 x i8> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 undef> |
