[PATCH] D85802: [clang] Add -fc++-abi= flag for specifying which C++ ABI to use

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added inline comments.


================
Comment at: clang/include/clang/Basic/LangOptions.h:299
+  /// This overrides the default ABI used by the target.
+  TargetCXXABI::Kind CXXABIOverride;
+  bool HasCXXABIOverride = false;
----------------
This is usually represented with llvm::Optional


================
Comment at: clang/lib/Driver/ToolChains/Clang.cpp:4969
+  if (Arg *A = Args.getLastArg(options::OPT_fcxx_abi_EQ))
+    CmdArgs.push_back(Args.MakeArgString("-fc++-abi=" + Twine(A->getValue())));
+
----------------
See `A->render`


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D85802/new/

https://reviews.llvm.org/D85802