[all-commits] [llvm/llvm-project] 996600: [Clang] Append target search paths for direct offl...

[Joseph Huber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 99660082cb387c9bf7974fef558c5f73d8b5a198
      https://github.com/llvm/llvm-project/commit/99660082cb387c9bf7974fef558c5f73d8b5a198
  Author: Joseph Huber <huberjn at outlook.com>
  Date:   2024-02-23 (Fri, 23 Feb 2024)

  Changed paths:
    M clang/lib/Driver/ToolChains/AMDGPU.cpp
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/lib/Driver/ToolChains/Cuda.cpp
    M clang/test/Driver/gpu-libc-headers.c

  Log Message:
  -----------
  [Clang] Append target search paths for direct offloading compilation (#82699)

Summary:
Recent changes to the `libc` project caused the headers to be installed
to `include/<triple>` for the GPU and the libraries to be in
`lib/<triple>`. This means we should automatically append these search
paths so they can be found by default. This allows the following to work
targeting AMDGPU.

```shell
$ clang foo.c -flto -mcpu=native --target=amdgcn-amd-amdhsa -lc <install>/lib/amdgcn-amd-amdhsa/crt1.o
$ amdhsa-loader a.out
```



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