[all-commits] [llvm/llvm-project] 4946db: [AsmParser][MCA] Fix handling of multi-character c...

Alexander Shaposhnikov via All-commits all-commits at lists.llvm.org
Mon Jul 7 15:11:06 PDT 2025


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4946db15a74b761c5ac4ead18873639236b4ab5d
      https://github.com/llvm/llvm-project/commit/4946db15a74b761c5ac4ead18873639236b4ab5d
  Author: Alexander Shaposhnikov <ashaposhnikov at google.com>
  Date:   2025-07-07 (Mon, 07 Jul 2025)

  Changed paths:
    M llvm/lib/MC/MCParser/AsmLexer.cpp
    A llvm/test/MC/AsmParser/preserve-comments-aarch64-linux.s
    A llvm/test/tools/llvm-mca/AArch64/Neoverse/llvm-mca-markers.s

  Log Message:
  -----------
  [AsmParser][MCA] Fix handling of multi-character comments (#147228)

This PR adjusts the lexer (following the surrounding style) to make sure
the comments are consumed
exactly after `CommentString`.
This enables to feed the output of `clang` on aarch64 into `llvm-mca`
(previously broken - the comments
//LLVM-MCA-BEGIN and //LLVM-MCA-END were actually ignored)

Test plan: ninja check-all



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