[x86] add tests for <3 x N> vector types (PR29114)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279939 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/X86/vec3.ll

@@ -0,0 +1,40 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=sse | FileCheck %s
+
+define <3 x float> @fadd(<3 x float> %v, float %d) {
+; CHECK-LABEL: fadd:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    shufps {{.*#+}} xmm1 = xmm1[0,0,0,3]
+; CHECK-NEXT:    addps %xmm1, %xmm0
+; CHECK-NEXT:    retq
+;
+  %ins = insertelement <3 x float> undef, float %d, i32 0
+  %splat = shufflevector <3 x float> %ins, <3 x float> undef, <3 x i32> zeroinitializer
+  %add = fadd <3 x float> %splat, %v
+  ret <3 x float> %add
+}
+
+; PR29114: https://llvm.org/bugs/show_bug.cgi?id=29114
+
+define <3 x float> @fdiv(<3 x float> %v, float %d) {
+; CHECK-LABEL: fdiv:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    movaps %xmm1, %xmm2
+; CHECK-NEXT:    movaps %xmm0, %xmm3
+; CHECK-NEXT:    movaps %xmm1, %xmm4
+; CHECK-NEXT:    divss %xmm0, %xmm1
+; CHECK-NEXT:    shufps {{.*#+}} xmm0 = xmm0[1,1,2,3]
+; CHECK-NEXT:    divss %xmm0, %xmm2
+; CHECK-NEXT:    movhlps {{.*#+}} xmm3 = xmm3[1,1]
+; CHECK-NEXT:    divss %xmm3, %xmm4
+; CHECK-NEXT:    unpcklps {{.*#+}} xmm1 = xmm1[0],xmm4[0],xmm1[1],xmm4[1]
+; CHECK-NEXT:    unpcklps {{.*#+}} xmm1 = xmm1[0],xmm2[0],xmm1[1],xmm2[1]
+; CHECK-NEXT:    movaps %xmm1, %xmm0
+; CHECK-NEXT:    retq
+;
+  %ins = insertelement <3 x float> undef, float %d, i32 0
+  %splat = shufflevector <3 x float> %ins, <3 x float> undef, <3 x i32> zeroinitializer
+  %div = fdiv <3 x float> %splat, %v
+  ret <3 x float> %div
+}
+