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[PGO] Preserve GlobalsAA in pgo-memop-opt pass.

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Preserve GlobalsAA analysis in memory intrinsic calls optimization based on
profiled size.

llvm-svn: 299707
This commit is contained in:
Rong Xu 2017-04-06 20:56:00 +00:00
parent b22ea77d18
commit 095a9362f9
1 changed files with 5 additions and 1 deletions
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6
lib/Transforms/Instrumentation/IndirectCallPromotion.cpp
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@ -18,6 +18,7 @@
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Analysis/BlockFrequencyInfo.h"
#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/Analysis/IndirectCallPromotionAnalysis.h"
#include "llvm/Analysis/IndirectCallSiteVisitor.h"
#include "llvm/IR/BasicBlock.h"
@ -187,6 +188,7 @@ private:
bool runOnFunction(Function &F) override;
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.addRequired<BlockFrequencyInfoWrapperPass>();
AU.addPreserved<GlobalsAAWrapperPass>();
}
};
} // end anonymous namespace
@ -1016,6 +1018,8 @@ PreservedAnalyses PGOMemOPSizeOpt::run(Function &F,
bool Changed = PGOMemOPSizeOptImpl(F, BFI);
if (!Changed)
return PreservedAnalyses::all();
return PreservedAnalyses::none();
auto PA = PreservedAnalyses();
PA.preserve<GlobalsAA>();
return PA;
}
} // namespace llvm