From 16ec8c103a20eb1e8f85c8524f231a562e0f12dd Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@apple.com>
Date: Tue, 18 Oct 2011 23:10:11 +0000
Subject: Revert "Turn on the vzeroupper pass by default."

This reverts commit 494f7ac3e8d2ab3d94e52317abf9c42a949fe1f3.

llvm-svn: 142455
---
 llvm/lib/Target/X86/X86TargetMachine.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Target/X86/X86TargetMachine.cpp b/llvm/lib/Target/X86/X86TargetMachine.cpp
index 1978c01aba2..15c6c4e7a7d 100644
--- a/llvm/lib/Target/X86/X86TargetMachine.cpp
+++ b/llvm/lib/Target/X86/X86TargetMachine.cpp
@@ -102,7 +102,7 @@ X86TargetMachine::X86TargetMachine(const Target &T, StringRef TT,
 static cl::opt<bool>
 UseVZeroUpper("x86-use-vzeroupper",
   cl::desc("Minimize AVX to SSE transition penalty"),
-  cl::init(true));
+  cl::init(false));
 
 //===----------------------------------------------------------------------===//
 // Pass Pipeline Configuration
-- 
cgit v1.2.3