[all-commits] [llvm/llvm-project] 7c3fdc: [CUDA] Add support for __grid_constant__ attribute...

[Artem Belevich via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7c3fdcc27603cd2d6b01fa7b057b3099da75bc8d
      https://github.com/llvm/llvm-project/commit/7c3fdcc27603cd2d6b01fa7b057b3099da75bc8d
  Author: Artem Belevich <tra at google.com>
  Date:   2024-11-05 (Tue, 05 Nov 2024)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/Attr.td
    M clang/include/clang/Basic/AttrDocs.td
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/lib/CodeGen/Targets/NVPTX.cpp
    M clang/lib/Sema/SemaDecl.cpp
    M clang/lib/Sema/SemaDeclAttr.cpp
    M clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
    M clang/test/CodeGenCUDA/Inputs/cuda.h
    A clang/test/CodeGenCUDA/grid-constant.cu
    M clang/test/Misc/pragma-attribute-supported-attributes-list.test
    M clang/test/SemaCUDA/Inputs/cuda.h
    A clang/test/SemaCUDA/grid-constant.cu

  Log Message:
  -----------
  [CUDA] Add support for __grid_constant__ attribute (#114589)

LLVM support for the attribute has been implemented already, so it just
plumbs it through to the CUDA front-end.

One notable difference from NVCC is that the attribute can be used
regardless of the targeted GPU. On the older GPUs it will just be
ignored. The attribute is a performance hint, and does not warrant a
hard error if compiler can't benefit from it on a particular GPU
variant.



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