From: Eric Christopher <echristo@apple.com>
Date: Tue, 18 Oct 2011 23:10:11 +0000 (+0000)
Subject: Revert "Turn on the vzeroupper pass by default."
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=857bf8341498448851fd7205e48307138823698b;p=oota-llvm.git

Revert "Turn on the vzeroupper pass by default."

This reverts commit 494f7ac3e8d2ab3d94e52317abf9c42a949fe1f3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142455 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index 1978c01aba2..15c6c4e7a7d 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/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