[llvm] r228126 - [x86] Add some tests I missed in the prior commit to cover blends with

[Chandler Carruth]

Author: chandlerc
Date: Wed Feb  4 03:15:46 2015
New Revision: 228126

URL: http://llvm.org/viewvc/llvm-project?rev=228126&view=rev
Log:
[x86] Add some tests I missed in the prior commit to cover blends with
zero for v8i16 as well.

These exhibit the same domain badness, but also exhibit other weaknesses
in our blend lowering. More fixes to come.

Modified:
    llvm/trunk/test/CodeGen/X86/vector-shuffle-128-v8.ll

Modified: llvm/trunk/test/CodeGen/X86/vector-shuffle-128-v8.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/vector-shuffle-128-v8.ll?rev=228126&r1=228125&r2=228126&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/vector-shuffle-128-v8.ll (original)
+++ llvm/trunk/test/CodeGen/X86/vector-shuffle-128-v8.ll Wed Feb  4 03:15:46 2015
@@ -2046,3 +2046,69 @@ define <8 x i16> @shuffle_v8i16_01u3zzuz
   %shuffle = shufflevector <8 x i16> %a, <8 x i16> zeroinitializer, <8 x i32> <i32 0, i32 1, i32 undef, i32 3, i32 8, i32 8, i32 undef, i32 8>
   ret <8 x i16> %shuffle
 }
+
+define <8 x i16> @shuffle_v8i16_0z234567(<8 x i16> %a) {
+; SSE2-LABEL: shuffle_v8i16_0z234567:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    andps {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    retq
+;
+; SSSE3-LABEL: shuffle_v8i16_0z234567:
+; SSSE3:       # BB#0:
+; SSSE3-NEXT:    andps {{.*}}(%rip), %xmm0
+; SSSE3-NEXT:    retq
+;
+; SSE41-LABEL: shuffle_v8i16_0z234567:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pxor %xmm1, %xmm1
+; SSE41-NEXT:    pblendw {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3,4,5,6,7]
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v8i16_0z234567:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3,4,5,6,7]
+; AVX-NEXT:    retq
+  %shuffle = shufflevector <8 x i16> %a, <8 x i16> zeroinitializer, <8 x i32> <i32 0, i32 9, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  ret <8 x i16> %shuffle
+}
+
+define <8 x i16> @shuffle_v8i16_0zzzz5z7(<8 x i16> %a) {
+; SSE-LABEL: shuffle_v8i16_0zzzz5z7:
+; SSE:       # BB#0:
+; SSE-NEXT:    andps {{.*}}(%rip), %xmm0
+; SSE-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v8i16_0zzzz5z7:
+; AVX:       # BB#0:
+; AVX-NEXT:    vandps {{.*}}(%rip), %xmm0, %xmm0
+; AVX-NEXT:    retq
+  %shuffle = shufflevector <8 x i16> %a, <8 x i16> zeroinitializer, <8 x i32> <i32 0, i32 8, i32 8, i32 8, i32 8, i32 5, i32 8, i32 7>
+  ret <8 x i16> %shuffle
+}
+
+define <8 x i16> @shuffle_v8i16_0123456z(<8 x i16> %a) {
+; SSE2-LABEL: shuffle_v8i16_0123456z:
+; SSE2:       # BB#0:
+; SSE2-NEXT:    andps {{.*}}(%rip), %xmm0
+; SSE2-NEXT:    retq
+;
+; SSSE3-LABEL: shuffle_v8i16_0123456z:
+; SSSE3:       # BB#0:
+; SSSE3-NEXT:    andps {{.*}}(%rip), %xmm0
+; SSSE3-NEXT:    retq
+;
+; SSE41-LABEL: shuffle_v8i16_0123456z:
+; SSE41:       # BB#0:
+; SSE41-NEXT:    pxor %xmm1, %xmm1
+; SSE41-NEXT:    pblendw {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3,4,5,6],xmm1[7]
+; SSE41-NEXT:    retq
+;
+; AVX-LABEL: shuffle_v8i16_0123456z:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; AVX-NEXT:    vpblendw {{.*#+}} xmm0 = xmm0[0],xmm1[1],xmm0[2,3,4,5,6],xmm1[7]
+; AVX-NEXT:    retq
+  %shuffle = shufflevector <8 x i16> %a, <8 x i16> zeroinitializer, <8 x i32> <i32 0, i32 9, i32 2, i32 3, i32 4, i32 5, i32 6, i32 15>
+  ret <8 x i16> %shuffle
+}