[PATCH] D98463: [IR] Add significant_addr property.

[Zequan Wu via Phabricator via llvm-commits]

zequanwu created this revision.
zequanwu added reviewers: pcc, rnk, rafael, chandlerc.
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`GlobalValue::UnnamedAddr::None` is the default property for global value, and
optimizer could update it to `local_unnamed_addr` or `unnamed_addr` in
`GlobalOpt`. Sometimes, we don't want this to happen. The new `significant_addr`
property doesn't allow optimizer to change it.

I'll add a clang attribute to map it to `significant_addr`.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D98463

Files:
  llvm/docs/BitCodeFormat.rst
  llvm/docs/LangRef.rst
  llvm/include/llvm-c/Core.h
  llvm/include/llvm/IR/GlobalValue.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/AsmWriter.cpp
  llvm/lib/IR/Core.cpp
  llvm/lib/Transforms/IPO/GlobalOpt.cpp
  llvm/test/Assembler/significant-addr.ll
  llvm/test/Bitcode/compatibility.ll

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