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Turn on vzeroupper insertion on call boundaries for AVX; it works as far as I know, and I'd like to see wider testing.

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llvm-svn: 144867
This commit is contained in:
Eli Friedman 2011-11-17 00:21:52 +00:00
parent 4affd889a2
commit 1b0e97d7ab
1 changed files with 1 additions and 1 deletions
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2
lib/Target/X86/X86TargetMachine.cpp
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@ -105,7 +105,7 @@ 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(false));
cl::init(true));
//===----------------------------------------------------------------------===//
// Pass Pipeline Configuration