[llvm] r311852 - [x86] add haddps test for PR34111; NFC

[Sanjay Patel via llvm-commits]

Author: spatel
Date: Sun Aug 27 10:15:49 2017
New Revision: 311852

URL: http://llvm.org/viewvc/llvm-project?rev=311852&view=rev
Log:
[x86] add haddps test for PR34111; NFC

Modified:
    llvm/trunk/test/CodeGen/X86/haddsub.ll

Modified: llvm/trunk/test/CodeGen/X86/haddsub.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/haddsub.ll?rev=311852&r1=311851&r2=311852&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/haddsub.ll (original)
+++ llvm/trunk/test/CodeGen/X86/haddsub.ll Sun Aug 27 10:15:49 2017
@@ -397,3 +397,28 @@ define <2 x float> @haddps_v2f32(<4 x fl
   %res1 = insertelement <2 x float> %res0, float %op1, i32 1
   ret <2 x float> %res1
 }
+
+define <4 x float> @PR34111(<4 x float> %a) {
+; SSE3-LABEL: PR34111:
+; SSE3:       # BB#0:
+; SSE3-NEXT:    movaps %xmm0, %xmm1
+; SSE3-NEXT:    shufps {{.*#+}} xmm1 = xmm1[0,2,2,3]
+; SSE3-NEXT:    shufps {{.*#+}} xmm0 = xmm0[1,3,2,3]
+; SSE3-NEXT:    addps %xmm1, %xmm0
+; SSE3-NEXT:    movddup {{.*#+}} xmm0 = xmm0[0,0]
+; SSE3-NEXT:    retq
+;
+; AVX-LABEL: PR34111:
+; AVX:       # BB#0:
+; AVX-NEXT:    vpermilps {{.*#+}} xmm1 = xmm0[0,2,2,3]
+; AVX-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[1,3,2,3]
+; AVX-NEXT:    vaddps %xmm0, %xmm1, %xmm0
+; AVX-NEXT:    vmovddup {{.*#+}} xmm0 = xmm0[0,0]
+; AVX-NEXT:    retq
+  %a02 = shufflevector <4 x float> %a, <4 x float> undef, <2 x i32> <i32 0, i32 2>
+  %a13 = shufflevector <4 x float> %a, <4 x float> undef, <2 x i32> <i32 1, i32 3>
+  %add = fadd <2 x float> %a02, %a13
+  %hadd = shufflevector <2 x float> %add, <2 x float> undef, <4 x i32> <i32 undef, i32 undef, i32 0, i32 1>
+  ret <4 x float> %hadd
+}
+