diff options
Diffstat (limited to 'llvm/lib/Bitcode/Writer/BitcodeWriter.cpp')
-rw-r--r-- | llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | 77 |
1 files changed, 39 insertions, 38 deletions
diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp index 715d66f052e..c68a2929dbe 100644 --- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -246,7 +246,7 @@ private: DenseMap<const Function *, uint64_t> &FunctionToBitcodeIndex); void writeBlockInfo(); void writePerModuleFunctionSummaryRecord(SmallVector<uint64_t, 64> &NameVals, - GlobalValueInfo *Info, + GlobalValueSummary *Summary, unsigned ValueID, unsigned FSCallsAbbrev, unsigned FSCallsProfileAbbrev, @@ -270,6 +270,10 @@ class IndexBitcodeWriter : public BitcodeWriter { /// Tracks the last value id recorded in the GUIDToValueMap. unsigned GlobalValueId = 0; + /// Record the starting offset of each summary entry for use in the VST + /// entry, and for any possible alias. + DenseMap<const GlobalValueSummary *, uint64_t> SummaryToOffsetMap; + public: /// Constructs a IndexBitcodeWriter object for the given combined index, /// writing to the provided \p Buffer. @@ -2639,15 +2643,17 @@ void IndexBitcodeWriter::writeCombinedValueSymbolTable() { SmallVector<uint64_t, 64> NameVals; - for (const auto &FII : Index) { - GlobalValue::GUID FuncGUID = FII.first; - unsigned ValueId = popValueId(FuncGUID); + for (const auto &GSI : Index) { + GlobalValue::GUID ValGUID = GSI.first; + unsigned ValueId = popValueId(ValGUID); - for (const auto &FI : FII.second) { + for (const auto &SI : GSI.second) { // VST_CODE_COMBINED_GVDEFENTRY: [valueid, sumoffset, guid] NameVals.push_back(ValueId); - NameVals.push_back(FI->bitcodeIndex()); - NameVals.push_back(FuncGUID); + auto Offset = SummaryToOffsetMap[SI.get()]; + assert(Offset); + NameVals.push_back(Offset); + NameVals.push_back(ValGUID); // Emit the finished record. Stream.EmitRecord(bitc::VST_CODE_COMBINED_GVDEFENTRY, NameVals, @@ -3031,12 +3037,12 @@ void IndexBitcodeWriter::writeModStrings() { // Helper to emit a single function summary record. void ModuleBitcodeWriter::writePerModuleFunctionSummaryRecord( - SmallVector<uint64_t, 64> &NameVals, GlobalValueInfo *Info, + SmallVector<uint64_t, 64> &NameVals, GlobalValueSummary *Summary, unsigned ValueID, unsigned FSCallsAbbrev, unsigned FSCallsProfileAbbrev, const Function &F) { NameVals.push_back(ValueID); - FunctionSummary *FS = cast<FunctionSummary>(Info->summary()); + FunctionSummary *FS = cast<FunctionSummary>(Summary); NameVals.push_back(getEncodedGVSummaryFlags(FS->flags())); NameVals.push_back(FS->instCount()); NameVals.push_back(FS->refs().size()); @@ -3072,8 +3078,8 @@ void ModuleBitcodeWriter::writeModuleLevelReferences( return; NameVals.push_back(VE.getValueID(&V)); NameVals.push_back(getEncodedGVSummaryFlags(V)); - auto *Info = Index->getGlobalValueInfo(V); - GlobalVarSummary *VS = cast<GlobalVarSummary>(Info->summary()); + auto *Summary = Index->getGlobalValueSummary(V); + GlobalVarSummary *VS = cast<GlobalVarSummary>(Summary); for (auto Ref : VS->refs()) NameVals.push_back(VE.getValueID(Ref.getValue())); Stream.EmitRecord(bitc::FS_PERMODULE_GLOBALVAR_INIT_REFS, NameVals, @@ -3151,9 +3157,9 @@ void ModuleBitcodeWriter::writePerModuleGlobalValueSummary() { if (!F.hasName()) report_fatal_error("Unexpected anonymous function when writing summary"); - auto *Info = Index->getGlobalValueInfo(F); + auto *Summary = Index->getGlobalValueSummary(F); writePerModuleFunctionSummaryRecord( - NameVals, Info, + NameVals, Summary, VE.getValueID(M.getValueSymbolTable().lookup(F.getName())), FSCallsAbbrev, FSCallsProfileAbbrev, F); } @@ -3227,10 +3233,8 @@ void IndexBitcodeWriter::writeCombinedGlobalValueSummary() { unsigned FSAliasAbbrev = Stream.EmitAbbrev(Abbv); // The aliases are emitted as a post-pass, and will point to the summary - // offset id of the aliasee. For this purpose we need to be able to get back - // from the summary to the offset - SmallVector<GlobalValueInfo *, 64> Aliases; - DenseMap<const GlobalValueSummary *, uint64_t> SummaryToOffsetMap; + // offset id of the aliasee. Save them in a vector for post-processing. + SmallVector<AliasSummary *, 64> Aliases; SmallVector<uint64_t, 64> NameVals; @@ -3244,14 +3248,14 @@ void IndexBitcodeWriter::writeCombinedGlobalValueSummary() { NameVals.clear(); }; - for (const auto &FII : Index) { - for (auto &FI : FII.second) { - GlobalValueSummary *S = FI->summary(); + for (const auto &GSI : Index) { + for (auto &SI : GSI.second) { + GlobalValueSummary *S = SI.get(); assert(S); - if (isa<AliasSummary>(S)) { + if (auto *AS = dyn_cast<AliasSummary>(S)) { // Will process aliases as a post-pass because the reader wants all // global to be loaded first. - Aliases.push_back(FI.get()); + Aliases.push_back(AS); continue; } @@ -3262,13 +3266,11 @@ void IndexBitcodeWriter::writeCombinedGlobalValueSummary() { NameVals.push_back(getValueId(RI.getGUID())); } - // Record the starting offset of this summary entry for use - // in the VST entry. Add the current code size since the - // reader will invoke readRecord after the abbrev id read. - FI->setBitcodeIndex(Stream.GetCurrentBitNo() + - Stream.GetAbbrevIDWidth()); - // Store temporarily the offset in the map for a possible alias. - SummaryToOffsetMap[S] = FI->bitcodeIndex(); + // Record the starting offset of this summary entry for use in the VST + // entry, and for any possible alias. Add the current code size since + // the reader will invoke readRecord after the abbrev id read. + SummaryToOffsetMap[S] = + Stream.GetCurrentBitNo() + Stream.GetAbbrevIDWidth(); // Emit the finished record. Stream.EmitRecord(bitc::FS_COMBINED_GLOBALVAR_INIT_REFS, NameVals, @@ -3307,12 +3309,11 @@ void IndexBitcodeWriter::writeCombinedGlobalValueSummary() { NameVals.push_back(EI.second.ProfileCount); } - // Record the starting offset of this summary entry for use - // in the VST entry. Add the current code size since the - // reader will invoke readRecord after the abbrev id read. - FI->setBitcodeIndex(Stream.GetCurrentBitNo() + Stream.GetAbbrevIDWidth()); - // Store temporarily the offset in the map for a possible alias. - SummaryToOffsetMap[S] = FI->bitcodeIndex(); + // Record the starting offset of this summary entry for use in the VST + // entry, and for any possible alias. Add the current code size since + // the reader will invoke readRecord after the abbrev id read. + SummaryToOffsetMap[S] = + Stream.GetCurrentBitNo() + Stream.GetAbbrevIDWidth(); unsigned FSAbbrev = (HasProfileData ? FSCallsProfileAbbrev : FSCallsAbbrev); @@ -3326,8 +3327,7 @@ void IndexBitcodeWriter::writeCombinedGlobalValueSummary() { } } - for (auto GVI : Aliases) { - AliasSummary *AS = cast<AliasSummary>(GVI->summary()); + for (auto *AS : Aliases) { NameVals.push_back(Index.getModuleId(AS->modulePath())); NameVals.push_back(getEncodedGVSummaryFlags(AS->flags())); auto AliaseeOffset = SummaryToOffsetMap[&AS->getAliasee()]; @@ -3337,7 +3337,8 @@ void IndexBitcodeWriter::writeCombinedGlobalValueSummary() { // Record the starting offset of this summary entry for use // in the VST entry. Add the current code size since the // reader will invoke readRecord after the abbrev id read. - GVI->setBitcodeIndex(Stream.GetCurrentBitNo() + Stream.GetAbbrevIDWidth()); + SummaryToOffsetMap[AS] = + Stream.GetCurrentBitNo() + Stream.GetAbbrevIDWidth(); // Emit the finished record. Stream.EmitRecord(bitc::FS_COMBINED_ALIAS, NameVals, FSAliasAbbrev); |