[all-commits] [llvm/llvm-project] 6aff41: [ELF] Emit Verbose Asm when using --lto-emit-asm

[Pierre van Houtryve via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6aff41ef37a48461b85c4b5bb143fceec6130a55
      https://github.com/llvm/llvm-project/commit/6aff41ef37a48461b85c4b5bb143fceec6130a55
  Author: Pierre van Houtryve <pierre.vanhoutryve at amd.com>
  Date:   2023-01-12 (Thu, 12 Jan 2023)

  Changed paths:
    M lld/ELF/LTO.cpp
    M lld/test/ELF/lto/emit-asm.ll

  Log Message:
  -----------
  [ELF] Emit Verbose Asm when using --lto-emit-asm

D138560 was abandonned as the use case can already be covered by `-Xoffload-linker --lto-emit-asm`.
However the output from `--lto-emit-asm` doesn't have
comments like the Clang `-S` output.

This patch adds verbose assembly output to LLD ELF LTO
so that the resulting assembly file more closely matches Clang's.

Having comments is especially important on targets such as AMDGPU because
they contain additional information about the kernel(s) being compiled.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D141268