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| author | Chris Lattner <sabre@nondot.org> | 2005-03-23 23:26:58 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-03-23 23:26:58 +0000 |
| commit | 8424b0f82e8d036c91c800fbe3670b90d241f18b (patch) | |
| tree | 148d66b07e375ba66127a01da224bd27f5672fdf /llvm/lib | |
| parent | 07eac1e6984b7c5ded14f5a209e5fe5a39764d88 (diff) | |
| download | bcm5719-llvm-8424b0f82e8d036c91c800fbe3670b90d241f18b.tar.gz bcm5719-llvm-8424b0f82e8d036c91c800fbe3670b90d241f18b.zip | |
Make this more efficient by only making one virtual method call.
llvm-svn: 20793
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Analysis/AliasAnalysis.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/llvm/lib/Analysis/AliasAnalysis.cpp b/llvm/lib/Analysis/AliasAnalysis.cpp index da54c1b3da1..5236435d206 100644 --- a/llvm/lib/Analysis/AliasAnalysis.cpp +++ b/llvm/lib/Analysis/AliasAnalysis.cpp @@ -114,11 +114,13 @@ AliasAnalysis::getModRefInfo(StoreInst *S, Value *P, unsigned Size) { AliasAnalysis::ModRefResult AliasAnalysis::getModRefInfo(CallSite CS, Value *P, unsigned Size) { ModRefResult Mask = ModRef; - if (Function *F = CS.getCalledFunction()) - if (onlyReadsMemory(F)) { - if (doesNotAccessMemory(F)) return NoModRef; + if (Function *F = CS.getCalledFunction()) { + ModRefBehavior MRB = getModRefBehavior(F, CallSite()); + if (MRB == OnlyReadsMemory) Mask = Ref; - } + else if (MRB == DoesNotAccessMemory) + return NoModRef; + } if (!AA) return Mask; |
