[PATCH] D78659: Add nomerge function attribute to supress tail merge optimization in simplifyCFG

[Zequan Wu via Phabricator via cfe-commits]

zequanwu updated this revision to Diff 260529.
zequanwu added a comment.

Split the the original differential to 2 smaller ones. This one add nomerge function attribute in IR level. Another one will add the attribute to let frontend recognize it.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D78659/new/

https://reviews.llvm.org/D78659

Files:
  llvm/docs/LangRef.rst
  llvm/include/llvm/Bitcode/LLVMBitCodes.h
  llvm/include/llvm/IR/Attributes.td
  llvm/include/llvm/IR/InstrTypes.h
  llvm/lib/AsmParser/LLLexer.cpp
  llvm/lib/AsmParser/LLParser.cpp
  llvm/lib/AsmParser/LLToken.h
  llvm/lib/Bitcode/Reader/BitcodeReader.cpp
  llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
  llvm/lib/IR/Attributes.cpp
  llvm/lib/IR/Verifier.cpp
  llvm/lib/Transforms/Utils/SimplifyCFG.cpp
  llvm/test/Transforms/SimplifyCFG/nomerge.ll

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