[all-commits] [llvm/llvm-project] 5cf2a3: [HIP] Emit kernel symbol

[Yaxun (Sam) Liu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5cf2a37f1255700d4da9d5f45e82bdfff09aee8c
      https://github.com/llvm/llvm-project/commit/5cf2a37f1255700d4da9d5f45e82bdfff09aee8c
  Author: Yaxun (Sam) Liu <yaxun.liu at amd.com>
  Date:   2021-03-01 (Mon, 01 Mar 2021)

  Changed paths:
    M clang/lib/CodeGen/CGCUDANV.cpp
    M clang/lib/CodeGen/CGCUDARuntime.h
    M clang/lib/CodeGen/CGExpr.cpp
    M clang/lib/CodeGen/CodeGenModule.cpp
    M clang/test/CodeGenCUDA/Inputs/cuda.h
    A clang/test/CodeGenCUDA/cxx-call-kernel.cpp
    M clang/test/CodeGenCUDA/kernel-dbg-info.cu
    M clang/test/CodeGenCUDA/kernel-stub-name.cu
    M clang/test/CodeGenCUDA/unnamed-types.cu

  Log Message:
  -----------
  [HIP] Emit kernel symbol

Currently clang uses stub function to launch kernel. This is inconvenient
to interop with C++ programs since the stub function has different name
as kernel, which is required by ROCm debugger.

This patch emits a variable symbol which has the same name as the kernel
and uses it to register and launch the kernel. This allows C++ program to
launch a kernel by using the original kernel name.

Reviewed by: Artem Belevich

Differential Revision: https://reviews.llvm.org/D86376