[llvm-commits] [llvm] r142455 - /llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
Eric Christopher
echristo at apple.com
Tue Oct 18 16:10:11 PDT 2011
Author: echristo
Date: Tue Oct 18 18:10:11 2011
New Revision: 142455
URL: http://llvm.org/viewvc/llvm-project?rev=142455&view=rev
Log:
Revert "Turn on the vzeroupper pass by default."
This reverts commit 494f7ac3e8d2ab3d94e52317abf9c42a949fe1f3.
Modified:
llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
Modified: llvm/trunk/lib/Target/X86/X86TargetMachine.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86TargetMachine.cpp?rev=142455&r1=142454&r2=142455&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86TargetMachine.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86TargetMachine.cpp Tue Oct 18 18:10:11 2011
@@ -102,7 +102,7 @@
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
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