[all-commits] [llvm/llvm-project] 455ced: [Clang] Make `-Xarch_` handling generic for all to...

[Joseph Huber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 455cedc805e7a42c6cfbe26a4ddd9e623cca6066
      https://github.com/llvm/llvm-project/commit/455cedc805e7a42c6cfbe26a4ddd9e623cca6066
  Author: Joseph Huber <huberjn at outlook.com>
  Date:   2025-02-05 (Wed, 05 Feb 2025)

  Changed paths:
    M clang/include/clang/Driver/Options.td
    M clang/lib/Driver/Driver.cpp
    M clang/lib/Driver/ToolChain.cpp
    M clang/lib/Driver/ToolChains/Darwin.cpp
    M clang/test/Driver/Xarch.c
    A clang/test/Driver/offload-Xarch.c

  Log Message:
  -----------
  [Clang] Make `-Xarch_` handling generic for all toolchains (#125421)

Summary:
Currently, `-Xarch_` is handled specially between different toolchains,
(i.e. Mach-O).
This patch unifies the handling so that it can be used generically.

The main benefit here is that we now have a more generic version of
`-Xopenmp-target=`, which should probably just be deprecated.
Additionally, it allows us to specially pass arguments to different
architectures for offloading.

This patch is done in preparation for making selecting offloading
toolchains more generic, this will be helpful while people are moving
toward compile jobs that include multiple toolchains (SPIR-V, AMDGCN,
NVPTX).



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