| commit | 90ccf2187332ff900d46a58a27cb0353577d37cb | [log] [tgz] |
|---|---|---|
| author | Joel E. Denny <jdenny.ornl@gmail.com> | Thu Jul 11 11:41:34 2024 -0400 |
| committer | GitHub <noreply@github.com> | Thu Jul 11 11:41:34 2024 -0400 |
| tree | 2305a0c5fcc4d6b9c82532656ee86a65e9e5a9c9 | |
| parent | 22a7f6dcc4fc83f80f81722ab9c83b6fa73416f8 [diff] |
[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.
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