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| author | Dan Gohman <gohman@apple.com> | 2008-04-01 20:38:36 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-04-01 20:38:36 +0000 |
| commit | 980d7200c10468670d8da5dbb76de9d74eced59a (patch) | |
| tree | 461dd828674788658139d6c1615f9234a22d3663 /llvm/lib/Target/X86/X86Subtarget.h | |
| parent | 5e4e051c2ad770a0fbdfbf47cd50da8a732cadf4 (diff) | |
| download | bcm5719-llvm-980d7200c10468670d8da5dbb76de9d74eced59a.tar.gz bcm5719-llvm-980d7200c10468670d8da5dbb76de9d74eced59a.zip | |
Speculatively micro-optimize memory-zeroing calls on Darwin 10.
llvm-svn: 49048
Diffstat (limited to 'llvm/lib/Target/X86/X86Subtarget.h')
| -rw-r--r-- | llvm/lib/Target/X86/X86Subtarget.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86Subtarget.h b/llvm/lib/Target/X86/X86Subtarget.h index 6488d474d19..c91088dcdf6 100644 --- a/llvm/lib/Target/X86/X86Subtarget.h +++ b/llvm/lib/Target/X86/X86Subtarget.h @@ -171,6 +171,12 @@ public: bool GVRequiresExtraLoad(const GlobalValue* GV, const TargetMachine& TM, bool isDirectCall) const; + /// This function returns the name of a function which has an interface + /// like the non-standard bzero function, if such a function exists on + /// the current subtarget and it is considered prefereable over + /// memset with zero passed as the second argument. Otherwise it + /// returns null. + const char *getBZeroEntry() const; }; namespace X86 { |
