From 87d35e8c715f5116b072ef8fd742c0cfb6fb5ce4 Mon Sep 17 00:00:00 2001
From: Nadav Rotem <nadav.rotem@intel.com>
Date: Sat, 19 May 2012 20:30:08 +0000
Subject: On Haswell, perfer storing YMM registers using a single instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157129 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/X86/2012-05-19-avx2-store.ll | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 test/CodeGen/X86/2012-05-19-avx2-store.ll

(limited to 'test/CodeGen/X86/2012-05-19-avx2-store.ll')

diff --git a/test/CodeGen/X86/2012-05-19-avx2-store.ll b/test/CodeGen/X86/2012-05-19-avx2-store.ll
new file mode 100644
index 0000000000..61fef90139
--- /dev/null
+++ b/test/CodeGen/X86/2012-05-19-avx2-store.ll
@@ -0,0 +1,14 @@
+; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx2 | FileCheck %s
+
+define void @double_save(<4 x i32>* %Ap, <4 x i32>* %Bp, <8 x i32>* %P) nounwind ssp {
+entry:
+  ; CHECK: vmovaps
+  ; CHECK: vmovaps
+  ; CHECK: vinsertf128
+  ; CHECK: vmovups
+  %A = load <4 x i32>* %Ap
+  %B = load <4 x i32>* %Bp
+  %Z = shufflevector <4 x i32>%A, <4 x i32>%B, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
+  store <8 x i32> %Z, <8 x i32>* %P, align 16
+  ret void
+}
-- 
cgit v1.2.3