Changes to sync patch D52966

[vish99]

Summary

Attempt to merge D52896, D52898, D52966, D53253, D53254

llvm/lib/Analysis/ModuleSummaryAnalysis.cpp

GlobalValueSummary::GVFlags Flags(F.getLinkage(), NotEligibleForImport,
                                     /* Live = */ false, F.isDSOLocal(),
                                     F.hasLinkOnceODRLinkage() && F.hasGlobalUnnamedAddr());
   FunctionSummary::FFlags FunFlags{
       F.hasFnAttribute(Attribute::ReadNone),
       F.hasFnAttribute(Attribute::ReadOnly),
       F.hasFnAttribute(Attribute::NoRecurse), F.returnDoesNotAlias(),
       // FIXME: refactor this to use the same code that inliner is using.
       // Don't try to import functions with noinline attribute.
-      F.getAttributes().hasFnAttribute(Attribute::NoInline),
-      F.hasFnAttribute(Attribute::AlwaysInline)};
+      F.getAttributes().hasFnAttribute(Attribute::NoInline)};
   auto FuncSummary = std::make_unique<FunctionSummary>(
       Flags, NumInsts, FunFlags, /*EntryCount=*/0, std::move(Refs),
       CallGraphEdges.takeVector(), TypeTests.takeVector(),
       TypeTestAssumeVCalls.takeVector(), TypeCheckedLoadVCalls.takeVector(),
       TypeTestAssumeConstVCalls.takeVector(),
       TypeCheckedLoadConstVCalls.takeVector());
   if (NonRenamableLocal)
     CantBePromoted.insert(F.getGUID());

llvm/lib/Bitcode/Reader/BitcodeReader.cpp

// Parse version
     Expected<unsigned> MaybeRecord = Stream.readRecord(Entry.ID, Record);
     if (!MaybeRecord)
       return MaybeRecord.takeError();
     if (MaybeRecord.get() != bitc::FS_VERSION)
       return error("Invalid Summary Block: version expected");
   }
   const uint64_t Version = Record[0];
   const bool IsOldProfileFormat = Version == 1;
-  if (Version < 1 || Version > ModuleSummaryIndex::BitcodeSummaryVersion)
+  if (Version < 1 || Version > 7)
     return error("Invalid summary version " + Twine(Version) +
-                 ". Version should be in the range [1-" +
-                 Twine(ModuleSummaryIndex::BitcodeSummaryVersion) +
-                 "].");
+                 ". Version should be in the range [1-7].");
   Record.clear();
 
   // Keep around the last seen summary to be used when we see an optional
   // "OriginalName" attachement.
   GlobalValueSummary *LastSeenSummary = nullptr;
   GlobalValue::GUID LastSeenGUID = 0;
 
   // We can expect to see any number of type ID information records before
case bitc::FS_PERMODULE_PROFILE: {
       setSpecialRefs(Refs, NumRORefs, NumWORefs);
       auto FS = std::make_unique<FunctionSummary>(
           Flags, InstCount, getDecodedFFlags(RawFunFlags), /*EntryCount=*/0,
           std::move(Refs), std::move(Calls), std::move(PendingTypeTests),
           std::move(PendingTypeTestAssumeVCalls),
           std::move(PendingTypeCheckedLoadVCalls),
           std::move(PendingTypeTestAssumeConstVCalls),
           std::move(PendingTypeCheckedLoadConstVCalls));
+      PendingTypeTests.clear();
+      PendingTypeTestAssumeVCalls.clear();
+      PendingTypeCheckedLoadVCalls.clear();
+      PendingTypeTestAssumeConstVCalls.clear();
+      PendingTypeCheckedLoadConstVCalls.clear();
       auto VIAndOriginalGUID = getValueInfoFromValueId(ValueID);
       FS->setModulePath(getThisModule()->first());
       FS->setOriginalName(VIAndOriginalGUID.second);
       TheIndex.addGlobalValueSummary(VIAndOriginalGUID.first, std::move(FS));
       break;
     }
     // FS_ALIAS: [valueid, flags, valueid]
     // Aliases must be emitted (and parsed) after all FS_PERMODULE entries, as
case bitc::FS_COMBINED_PROFILE: {
       setSpecialRefs(Refs, NumRORefs, NumWORefs);
       auto FS = std::make_unique<FunctionSummary>(
           Flags, InstCount, getDecodedFFlags(RawFunFlags), EntryCount,
           std::move(Refs), std::move(Edges), std::move(PendingTypeTests),
           std::move(PendingTypeTestAssumeVCalls),
           std::move(PendingTypeCheckedLoadVCalls),
           std::move(PendingTypeTestAssumeConstVCalls),
           std::move(PendingTypeCheckedLoadConstVCalls));
+      PendingTypeTests.clear();
+      PendingTypeTestAssumeVCalls.clear();
+      PendingTypeCheckedLoadVCalls.clear();
+      PendingTypeTestAssumeConstVCalls.clear();
+      PendingTypeCheckedLoadConstVCalls.clear();
       LastSeenSummary = FS.get();
       LastSeenGUID = VI.getGUID();
       FS->setModulePath(ModuleIdMap[ModuleId]);
       TheIndex.addGlobalValueSummary(VI, std::move(FS));
       break;
     }
     // FS_COMBINED_ALIAS: [valueid, modid, flags, valueid]
     // Aliases must be emitted (and parsed) after all FS_COMBINED entries, as

llvm/lib/Bitcode/Writer/BitcodeWriter.cpp

else {
     }
 
     Stream.EmitRecord(bitc::FS_PERMODULE_VTABLE_GLOBALVAR_INIT_REFS, NameVals,
                       FSModVTableRefsAbbrev);
   }
   NameVals.clear();
 }
 
+// Current version for the summary.
+// This is bumped whenever we introduce changes in the way some record are
+// interpreted, like flags for instance.
+static const uint64_t INDEX_VERSION = 7;
+
 /// Emit the per-module summary section alongside the rest of
 /// the module's bitcode.
 void ModuleBitcodeWriterBase::writePerModuleGlobalValueSummary() {
   // By default we compile with ThinLTO if the module has a summary, but the
   // client can request full LTO with a module flag.
   bool IsThinLTO = true;
   if (auto *MD =
           mdconst::extract_or_null<ConstantInt>(M.getModuleFlag("ThinLTO")))