[X86][AVX] Add X86ISD::VPERMV demandedelts test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358173 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/vector-shuffle-combining-avx2.ll b/test/CodeGen/X86/vector-shuffle-combining-avx2.ll
index bedf6823277706c83e44bc7ee63686692ce4a754..f2f45fc6700843d160aa021c188d415d107d3e7b 100644 (file)
--- a/test/CodeGen/X86/vector-shuffle-combining-avx2.ll
+++ b/test/CodeGen/X86/vector-shuffle-combining-avx2.ll
@@ -342,6 +342,28 @@ define <8 x float> @combine_permps_as_permpd(<8 x float> %a) {
   ret <8 x float> %1
 }
 
+define <8 x float> @combine_permps_as_vpermilps(<8 x float> %a, i32 %a1) {
+; X86-LABEL: combine_permps_as_vpermilps:
+; X86:       # %bb.0:
+; X86-NEXT:    vmovss {{.*#+}} xmm1 = mem[0],zero,zero,zero
+; X86-NEXT:    vblendps {{.*#+}} ymm1 = ymm1[0],mem[1,2,3,4,5,6,7]
+; X86-NEXT:    vpermps %ymm0, %ymm1, %ymm0
+; X86-NEXT:    vpermilps {{.*#+}} ymm0 = ymm0[1,1,2,3,4,5,6,7]
+; X86-NEXT:    retl
+;
+; X64-LABEL: combine_permps_as_vpermilps:
+; X64:       # %bb.0:
+; X64-NEXT:    vmovd %edi, %xmm1
+; X64-NEXT:    vpblendd {{.*#+}} ymm1 = ymm1[0],mem[1,2,3,4,5,6,7]
+; X64-NEXT:    vpermd %ymm0, %ymm1, %ymm0
+; X64-NEXT:    vpermilps {{.*#+}} ymm0 = ymm0[1,1,2,3,4,5,6,7]
+; X64-NEXT:    retq
+  %1 = insertelement <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 7, i32 6, i32 5, i32 4>, i32 %a1, i32 0
+  %2 = call <8 x float> @llvm.x86.avx2.permps(<8 x float> %a, <8 x i32> %1)
+  %3 = shufflevector <8 x float> %2, <8 x float> undef, <8 x i32> <i32 1, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  ret <8 x float> %3
+}
+
 define <4 x i64> @combine_pshufb_as_zext(<32 x i8> %a0) {
 ; CHECK-LABEL: combine_pshufb_as_zext:
 ; CHECK:       # %bb.0: