[all-commits] [llvm/llvm-project] 30514f: [CUDA] Added conversion functions to builtin vars.

[Artem Belevich via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 30514f0afa3ee1e6da6bf9c41e83c28e884f0740
      https://github.com/llvm/llvm-project/commit/30514f0afa3ee1e6da6bf9c41e83c28e884f0740
  Author: Artem Belevich <tra at google.com>
  Date:   2020-09-24 (Thu, 24 Sep 2020)

  Changed paths:
    M clang/lib/Headers/__clang_cuda_builtin_vars.h
    M clang/lib/Headers/__clang_cuda_runtime_wrapper.h

  Log Message:
  -----------
  [CUDA] Added conversion functions to builtin vars.

This is needed to compile some headers in CUDA-11 that assume that threadIdx is
implicitly convertible to dim3. With NVCC, threadIdx is uint3 and there's
dim3(uint3) constructor. Clang uses a special type for the builtin variables, so
that path does not work. Instead, this patch adds conversion function to the
builtin variable classes. that will allow them to be converted to dim3 and uint3.

Differential Revision: https://reviews.llvm.org/D88250