[all-commits] [llvm/llvm-project] 0ca426: [llvm-mca] Improve barriers for strict region mark...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0ca426d6ac65b84c70ac7fd9511628ce5115423e
      https://github.com/llvm/llvm-project/commit/0ca426d6ac65b84c70ac7fd9511628ce5115423e
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-01-21 (Fri, 21 Jan 2022)

  Changed paths:
    M llvm/docs/CommandGuide/llvm-mca.rst

  Log Message:
  -----------
  [llvm-mca] Improve barriers for strict region marking (PR52198)

As suggested on the bug, to help (but not completely....) stop folded instructions crossing the inline asm barriers used for llvm-mca analysis, we should recommend tagging with memory captures/attributes.

Differential Revision: https://reviews.llvm.org/D117788