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| author | Evan Cheng <evan.cheng@apple.com> | 2012-02-07 22:50:41 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2012-02-07 22:50:41 +0000 |
| commit | 1b81fddd654340a06fb199a13e71b27fd23e8064 (patch) | |
| tree | d1a2e36b4872d1badef141a08c3a06b165a07726 /llvm/lib/Target/X86/X86Subtarget.cpp | |
| parent | ea9b81b4c6a3d073157c3f6d4a8329f266cba712 (diff) | |
| download | bcm5719-llvm-1b81fddd654340a06fb199a13e71b27fd23e8064.tar.gz bcm5719-llvm-1b81fddd654340a06fb199a13e71b27fd23e8064.zip | |
Use LEA to adjust stack ptr for Atom. Patch by Andy Zhang.
llvm-svn: 150008
Diffstat (limited to 'llvm/lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86Subtarget.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86Subtarget.cpp b/llvm/lib/Target/X86/X86Subtarget.cpp index a9d95d38702..f1ef118881b 100644 --- a/llvm/lib/Target/X86/X86Subtarget.cpp +++ b/llvm/lib/Target/X86/X86Subtarget.cpp @@ -257,6 +257,7 @@ void X86Subtarget::AutoDetectSubtargetFeatures() { // Set processor type. Currently only Atom is detected. if (Family == 6 && Model == 28) { X86ProcFamily = IntelAtom; + ToggleFeature(X86::FeatureLeaForSP); } unsigned MaxExtLevel; @@ -340,6 +341,7 @@ X86Subtarget::X86Subtarget(const std::string &TT, const std::string &CPU, , IsUAMemFast(false) , HasVectorUAMem(false) , HasCmpxchg16b(false) + , UseLeaForSP(false) , PostRAScheduler(false) , stackAlignment(4) // FIXME: this is a known good value for Yonah. How about others? |
