[all-commits] [llvm/llvm-project] 90ccf2: [LinkerWrapper] Extend with usual pass options (#9...

[Joel E. Denny via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 90ccf2187332ff900d46a58a27cb0353577d37cb
      https://github.com/llvm/llvm-project/commit/90ccf2187332ff900d46a58a27cb0353577d37cb
  Author: Joel E. Denny <jdenny.ornl at gmail.com>
  Date:   2024-07-11 (Thu, 11 Jul 2024)

  Changed paths:
    M clang/test/CMakeLists.txt
    A clang/test/Driver/linker-wrapper-llvm-help.c
    A clang/test/Driver/linker-wrapper-passes.c
    M clang/test/lit.cfg.py
    M clang/test/lit.site.cfg.py.in
    M clang/tools/clang-linker-wrapper/CMakeLists.txt
    M clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp
    M clang/tools/clang-linker-wrapper/LinkerWrapperOpts.td

  Log Message:
  -----------
  [LinkerWrapper] Extend with usual pass options (#96704)

The goal of this patch is to enable utilizing LLVM plugin passes and
remarks for GPU offload code at link time. Specifically, this patch
extends clang-linker-wrapper's `--offload-opt` (and consequently
`-mllvm`) to accept the various LLVM pass options that tools like opt
usually accept. Those options include `--passes`, `--load-pass-plugin`,
and various remarks options.

Unlike many other LLVM options that are inherited from linked code by
clang-linker-wrapper (e.g., `-pass-remarks` is already implemented in
`llvm/lib/IR/DiagnosticHandler.cpp`), these options are implemented
separately as needed by each tool (e.g., opt, llc). Fortunately, this
patch is able to handle most of the implementation by passing the option
values to `lto::Config`.

For testing plugin support, this patch uses the simple `Bye` plugin from
LLVM core, but that requires several small Clang test suite config
extensions.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications