[PATCH] D72829: Implement -fsemantic-interposition

[serge via Phabricator via cfe-commits]

serge-sans-paille created this revision.
serge-sans-paille added reviewers: MaskRay, hfinkel.
Herald added subscribers: llvm-commits, cfe-commits, haicheng, hiraditya, eraman.
Herald added projects: clang, LLVM.
serge-sans-paille added a comment.

@MaskRay no example yet, I'd like your opinion on the approach first. It has the advantage of being non intrusive to the code base...


First attempt at implementing -fsemantic-interposition.

Rely on `GlobalValue::isInterposable` that already captures most of the expected behavior.

Rely on a `ModuleFlag` to state whether we should respect SemanticInterposition or not. The default remains no.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D72829

Files:
  clang/include/clang/Basic/LangOptions.def
  clang/include/clang/Driver/Options.td
  clang/lib/CodeGen/CodeGenModule.cpp
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/lib/Frontend/CompilerInvocation.cpp
  llvm/include/llvm/IR/GlobalValue.h
  llvm/include/llvm/IR/Module.h
  llvm/lib/Analysis/InlineCost.cpp
  llvm/lib/IR/Globals.cpp
  llvm/lib/IR/Module.cpp

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