[PATCH] D155850: [Clang][CodeGen][RFC] Add codegen support for C++ Parallel Algorithm Offload

[Alex Voicu via Phabricator via cfe-commits]

AlexVlx updated this revision to Diff 544954.
AlexVlx removed a reviewer: eli.friedman.
AlexVlx added a comment.

This adds more ecumenical handling of unsupported builtins, as per the review discussion (a suffixed equivalent stub is emitted instead); it's paired with an associated change in accelerator code selection pass, where the actual check for these stubs occurs. I've also adjusted where the latter pass gets added to the `opt` pipeline, for the AMDGCN target; for the latter it's better, for the moment, to run it later because we essentially do LTCG, and therefore can unambiguously determine reachability by operating on the full module.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D155850/new/

https://reviews.llvm.org/D155850

Files:
  clang/lib/CodeGen/BackendUtil.cpp
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/lib/CodeGen/CodeGenModule.cpp
  clang/test/CodeGenStdPar/unannotated-functions-get-emitted.cpp
  clang/test/CodeGenStdPar/unsupported-builtins.cpp

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