[all-commits] [llvm/llvm-project] 9e239f: [LinkerWrapper] Emit assembly files from LTO with ...

[Joseph Huber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9e239fc487d51d6b90ad50f6ffa72203d8df3210
      https://github.com/llvm/llvm-project/commit/9e239fc487d51d6b90ad50f6ffa72203d8df3210
  Author: Joseph Huber <jhuber6 at vols.utk.edu>
  Date:   2023-01-12 (Thu, 12 Jan 2023)

  Changed paths:
    M clang/test/Driver/linker-wrapper.c
    M clang/tools/clang-linker-wrapper/ClangLinkerWrapper.cpp

  Log Message:
  -----------
  [LinkerWrapper] Emit assembly files from LTO with `save-temps`

Currently in LTO mode we don't emit any `.s` files for non-NVPTX targets
during LTO. This makes it diffcult to investigate any failures in the
assembly. This patch makes the save-temps mode output an assembly file
and then assembles it separately. I decided to simply invoke `clang` for
this as it would be a lot of effort to invoke the `MCStramer` interface
directly.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D141543