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| author | Charles Saternos <charles.saternos@gmail.com> | 2017-08-04 16:00:58 +0000 |
|---|---|---|
| committer | Charles Saternos <charles.saternos@gmail.com> | 2017-08-04 16:00:58 +0000 |
| commit | 75da10d1b2db41f6789846ff499e2842cfe5de8e (patch) | |
| tree | 18a69ad82b41d393cd3766c85cbb2a6c25b049f0 /llvm/lib/Analysis/ModuleSummaryAnalysis.cpp | |
| parent | 79e7f6b3e394ad2f3b58581085847b4bb11fdc75 (diff) | |
| download | bcm5719-llvm-75da10d1b2db41f6789846ff499e2842cfe5de8e.tar.gz bcm5719-llvm-75da10d1b2db41f6789846ff499e2842cfe5de8e.zip | |
[ThinLTO] Add FunctionAttrs to ThinLTO index
Adds function attributes to index: ReadNone, ReadOnly, NoRecurse, NoAlias. This attributes will be used for future ThinLTO optimizations that will propagate function attributes across modules.
llvm-svn: 310061
Diffstat (limited to 'llvm/lib/Analysis/ModuleSummaryAnalysis.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ModuleSummaryAnalysis.cpp | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp b/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp index e9e354ebb88..024aec2eadc 100644 --- a/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp +++ b/llvm/lib/Analysis/ModuleSummaryAnalysis.cpp @@ -276,10 +276,16 @@ computeFunctionSummary(ModuleSummaryIndex &Index, const Module &M, F.isVarArg(); GlobalValueSummary::GVFlags Flags(F.getLinkage(), NotEligibleForImport, /* Live = */ false); + FunctionSummary::FFlags FunFlags{ + F.hasFnAttribute(Attribute::ReadNone), + F.hasFnAttribute(Attribute::ReadOnly), + F.hasFnAttribute(Attribute::NoRecurse), + F.returnDoesNotAlias(), + }; auto FuncSummary = llvm::make_unique<FunctionSummary>( - Flags, NumInsts, RefEdges.takeVector(), CallGraphEdges.takeVector(), - TypeTests.takeVector(), TypeTestAssumeVCalls.takeVector(), - TypeCheckedLoadVCalls.takeVector(), + Flags, NumInsts, FunFlags, RefEdges.takeVector(), + CallGraphEdges.takeVector(), TypeTests.takeVector(), + TypeTestAssumeVCalls.takeVector(), TypeCheckedLoadVCalls.takeVector(), TypeTestAssumeConstVCalls.takeVector(), TypeCheckedLoadConstVCalls.takeVector()); if (NonRenamableLocal) @@ -427,11 +433,16 @@ ModuleSummaryIndex llvm::buildModuleSummaryIndex( /* Live = */ true); CantBePromoted.insert(GlobalValue::getGUID(Name)); // Create the appropriate summary type. - if (isa<Function>(GV)) { + if (Function *F = dyn_cast<Function>(GV)) { std::unique_ptr<FunctionSummary> Summary = llvm::make_unique<FunctionSummary>( - GVFlags, 0, ArrayRef<ValueInfo>{}, - ArrayRef<FunctionSummary::EdgeTy>{}, + GVFlags, 0, + FunctionSummary::FFlags{ + F->hasFnAttribute(Attribute::ReadNone), + F->hasFnAttribute(Attribute::ReadOnly), + F->hasFnAttribute(Attribute::NoRecurse), + F->returnDoesNotAlias()}, + ArrayRef<ValueInfo>{}, ArrayRef<FunctionSummary::EdgeTy>{}, ArrayRef<GlobalValue::GUID>{}, ArrayRef<FunctionSummary::VFuncId>{}, ArrayRef<FunctionSummary::VFuncId>{}, |
