From 7798d5992aa8d1bdf96b1c8399d26b6d38a998b5 Mon Sep 17 00:00:00 2001
From: Filipe Cabecinhas <me@filcab.net>
Date: Sun, 22 Jun 2014 17:21:37 +0000
Subject: Fix PR20087 by using the source index when changing the vector load

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211472 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/sse41.ll | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'test/CodeGen')

diff --git a/test/CodeGen/X86/sse41.ll b/test/CodeGen/X86/sse41.ll
index a77ede228d..6726a3ea9f 100644
--- a/test/CodeGen/X86/sse41.ll
+++ b/test/CodeGen/X86/sse41.ll
@@ -703,3 +703,14 @@ define <4 x float> @insertps_with_undefs(<4 x float> %a, float* %b) {
   %result = shufflevector <4 x float> %a, <4 x float> %2, <4 x i32> <i32 4, i32 undef, i32 0, i32 7>
   ret <4 x float> %result
 }
+
+; Test for a bug in X86ISelLowering.cpp:getINSERTPS where we were using
+; the destination index to change the load, instead of the source index.
+define <4 x float> @pr20087(<4 x float> %a, <4 x float> *%ptr) {
+; CHECK-LABEL: pr20087:
+; CHECK: insertps  $48
+; CHECK: ret
+  %load = load <4 x float> *%ptr
+  %ret = shufflevector <4 x float> %load, <4 x float> %a, <4 x i32> <i32 4, i32 undef, i32 6, i32 2>
+  ret <4 x float> %ret
+}
-- 
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