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| author | Dan Gohman <gohman@apple.com> | 2010-11-09 20:17:38 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-11-09 20:17:38 +0000 |
| commit | e3467a768798e17e6310ad5d5fb098b097775e66 (patch) | |
| tree | a485e1ea7a900f32ea545685c91d1475b98883cc /llvm/lib/Transforms | |
| parent | 8ea6442f92ad028e96c74cd147e7ca6bd639107f (diff) | |
| download | bcm5719-llvm-e3467a768798e17e6310ad5d5fb098b097775e66.tar.gz bcm5719-llvm-e3467a768798e17e6310ad5d5fb098b097775e66.zip | |
Teach FunctionAttrs about the VAArg instruction.
llvm-svn: 118627
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/IPO/FunctionAttrs.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/FunctionAttrs.cpp b/llvm/lib/Transforms/IPO/FunctionAttrs.cpp index fcdc5f18f16..8bdf5d75dad 100644 --- a/llvm/lib/Transforms/IPO/FunctionAttrs.cpp +++ b/llvm/lib/Transforms/IPO/FunctionAttrs.cpp @@ -195,6 +195,13 @@ bool FunctionAttrs::AddReadAttrs(const CallGraphSCC &SCC) { if (AA->pointsToConstantMemory(Loc, /*OrLocal=*/true)) continue; } + } else if (VAArgInst *VI = dyn_cast<VAArgInst>(I)) { + // Ignore vaargs on local memory. + AliasAnalysis::Location Loc(VI->getPointerOperand(), + AliasAnalysis::UnknownSize, + VI->getMetadata(LLVMContext::MD_tbaa)); + if (AA->pointsToConstantMemory(Loc, /*OrLocal=*/true)) + continue; } // Any remaining instructions need to be taken seriously! Check if they |
