[llvm-commits] [llvm] r142439 - /llvm/trunk/lib/Target/X86/X86TargetMachine.cpp

[Eric Christopher]

Author: echristo
Date: Tue Oct 18 17:50:17 2011
New Revision: 142439

URL: http://llvm.org/viewvc/llvm-project?rev=142439&view=rev
Log:
Turn on the vzeroupper pass by default.

I'll remove/rename the option in a few days.

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=142439&r1=142438&r2=142439&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86TargetMachine.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86TargetMachine.cpp Tue Oct 18 17:50:17 2011
@@ -102,7 +102,7 @@
 static cl::opt<bool>
 UseVZeroUpper("x86-use-vzeroupper",
   cl::desc("Minimize AVX to SSE transition penalty"),
-  cl::init(false));
+  cl::init(true));
 
 //===----------------------------------------------------------------------===//
 // Pass Pipeline Configuration