From b600ba3b790cabd803b574f2e51755474e2274a0 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-dev@redking.me.uk>
Date: Fri, 8 Jul 2016 17:01:42 +0000
Subject: [PATCH] [X86][AVX] Added combine test that should simplify to
 insertps

llvm-svn: 274884
---
 llvm/test/CodeGen/X86/vector-shuffle-combining-avx.ll | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/llvm/test/CodeGen/X86/vector-shuffle-combining-avx.ll b/llvm/test/CodeGen/X86/vector-shuffle-combining-avx.ll
index 29dc1a3d1ebf..ffae771da46b 100644
--- a/llvm/test/CodeGen/X86/vector-shuffle-combining-avx.ll
+++ b/llvm/test/CodeGen/X86/vector-shuffle-combining-avx.ll
@@ -186,3 +186,13 @@ define <8 x float> @combine_vpermilvar_8f32_4stage(<8 x float> %a0) {
   %4 = tail call <8 x float> @llvm.x86.avx.vpermilvar.ps.256(<8 x float>  %3, <8 x i32> <i32 3, i32 2, i32 1, i32 0, i32 3, i32 2, i32 1, i32 0>)
   ret <8 x float> %4
 }
+
+define <4 x float> @combine_vpermilvar_4f32_as_insertps(<4 x float> %a0) {
+; ALL-LABEL: combine_vpermilvar_4f32_as_insertps:
+; ALL:       # BB#0:
+; ALL-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[4,5,6,7],zero,zero,zero,zero,xmm0[8,9,10,11],zero,zero,zero,zero
+; ALL-NEXT:    retq
+  %1 = call <4 x float> @llvm.x86.avx.vpermilvar.ps(<4 x float> %a0, <4 x i32> <i32 3, i32 2, i32 1, i32 0>)
+  %2 = shufflevector <4 x float> %1, <4 x float> zeroinitializer, <4 x i32> <i32 2, i32 4, i32 1, i32 4>
+  ret <4 x float> %2
+}