[PATCH] D115492: [LTO] Ignore unreachable virtual functions in WPD in hybrid LTO

[Mingming Liu via Phabricator via cfe-commits]

luna updated this revision to Diff 393921.
luna added a comment.

Use GUID computed with exported function name as a fallback to look up index when there isn't an entry for current function GUID.

- Based on feedback in https://reviews.llvm.org/D115203#inline-1104045
- The entry might be absent when enable-lto-internalization is on (default value).
- Also guard second index lookup and saves GUID.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D115492/new/

https://reviews.llvm.org/D115492

Files:
  clang/test/CodeGen/thinlto-distributed-cfi-devirt.ll
  clang/test/CodeGen/thinlto-distributed-cfi.ll
  clang/test/CodeGen/thinlto-funcattr-prop.ll
  llvm/include/llvm/AsmParser/LLToken.h
  llvm/include/llvm/IR/ModuleSummaryIndex.h
  llvm/lib/Analysis/ModuleSummaryAnalysis.cpp
  llvm/lib/AsmParser/LLLexer.cpp
  llvm/lib/AsmParser/LLParser.cpp
  llvm/lib/Bitcode/Reader/BitcodeReader.cpp
  llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
  llvm/lib/IR/ModuleSummaryIndex.cpp
  llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
  llvm/test/Assembler/thinlto-summary.ll
  llvm/test/Bitcode/thinlto-function-summary-refgraph.ll
  llvm/test/Bitcode/thinlto-type-vcalls.ll
  llvm/test/ThinLTO/X86/Inputs/devirt_hybrid_after_filtering_unreachable_lib.ll
  llvm/test/ThinLTO/X86/devirt_hybrid_after_filtering_unreachable.ll
  llvm/test/ThinLTO/X86/dot-dumper.ll
  llvm/test/ThinLTO/X86/dot-dumper2.ll
  llvm/test/ThinLTO/X86/funcattrs-prop-maythrow.ll
  llvm/test/ThinLTO/X86/funcimport_alwaysinline.ll

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