[PATCH] D26532: Bitcode: Clean up error handling for certain bitcode query functions.

[Peter Collingbourne via llvm-commits]

pcc created this revision.
pcc added a reviewer: mehdi_amini.
pcc added subscribers: llvm-commits, lhames.

The functions getBitcodeTargetTriple(), isBitcodeContainingObjCCategory(),
getBitcodeProducerString() and hasGlobalValueSummary() now return errors
via their return value rather than via the diagnostic handler.

To make this work, re-implement these functions using non-member functions
so that they can be used without the LLVMContext required by BitcodeReader.


https://reviews.llvm.org/D26532

Files:
  lld/ELF/Driver.cpp
  lld/ELF/Driver.h
  lld/ELF/InputFiles.cpp
  llvm/include/llvm/Bitcode/ReaderWriter.h
  llvm/include/llvm/Object/ModuleSummaryIndexObjectFile.h
  llvm/lib/Bitcode/Reader/BitcodeReader.cpp
  llvm/lib/LTO/LTO.cpp
  llvm/lib/LTO/LTOModule.cpp
  llvm/lib/LTO/ThinLTOCodeGenerator.cpp
  llvm/lib/Object/ModuleSummaryIndexObjectFile.cpp
  llvm/tools/llvm-lto/llvm-lto.cpp
  llvm/tools/lto/lto.cpp

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