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D56435.diff
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Created
Sun, Sep 15, 10:12 PM

D56435.diff

Index: llvm/trunk/lib/Transforms/IPO/SampleProfile.cpp
===================================================================
--- llvm/trunk/lib/Transforms/IPO/SampleProfile.cpp
+++ llvm/trunk/lib/Transforms/IPO/SampleProfile.cpp
@@ -218,6 +218,7 @@
const FunctionSamples *findCalleeFunctionSamples(const Instruction &I) const;
std::vector<const FunctionSamples *>
findIndirectCallFunctionSamples(const Instruction &I, uint64_t &Sum) const;
+ mutable DenseMap<const DILocation *, const FunctionSamples *> DILocation2SampleMap;
const FunctionSamples *findFunctionSamples(const Instruction &I) const;
bool inlineCallInstruction(Instruction *I);
bool inlineHotFunctions(Function &F,
@@ -719,12 +720,14 @@
/// \returns the FunctionSamples pointer to the inlined instance.
const FunctionSamples *
SampleProfileLoader::findFunctionSamples(const Instruction &Inst) const {
- SmallVector<std::pair<LineLocation, StringRef>, 10> S;
const DILocation *DIL = Inst.getDebugLoc();
if (!DIL)
return Samples;
- return Samples->findFunctionSamples(DIL);
+ auto it = DILocation2SampleMap.try_emplace(DIL,nullptr);
+ if (it.second)
+ it.first->second = Samples->findFunctionSamples(DIL);
+ return it.first->second;
}
bool SampleProfileLoader::inlineCallInstruction(Instruction *I) {
@@ -1610,6 +1613,8 @@
}
bool SampleProfileLoader::runOnFunction(Function &F, ModuleAnalysisManager *AM) {
+
+ DILocation2SampleMap.clear();
// By default the entry count is initialized to -1, which will be treated
// conservatively by getEntryCount as the same as unknown (None). This is
// to avoid newly added code to be treated as cold. If we have samples

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