[all-commits] [llvm/llvm-project] a825f3: [CUDA] Relax restrictions on GPU-side variadic fun...

[Artem Belevich via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a825f3754b3ca1591068cf99bc224af30a311e63
      https://github.com/llvm/llvm-project/commit/a825f3754b3ca1591068cf99bc224af30a311e63
  Author: Artem Belevich <tra at google.com>
  Date:   2023-05-17 (Wed, 17 May 2023)

  Changed paths:
    M clang/lib/Driver/ToolChains/Cuda.cpp

  Log Message:
  -----------
  [CUDA] Relax restrictions on GPU-side variadic functions

Allow parsing GPU-side variadic functions when we're compiling with CUDA-9 or
newer. We still do not allow accessing variadic arguments.

CUDA-9 was the version which introduced PTX-6.0 which allows implementing
variadic functions, so older versions can't have variadics in principle.

This is required for dealing with headers in recent CUDA versions that rely on
variadic function declarations in some of the templated code in libcu++.
E.g. https://github.com/llvm/llvm-project/issues/58410

Differential Revision: https://reviews.llvm.org/D150718