[all-commits] [llvm/llvm-project] feabb3: [MISched] Apply debug filters before starting a bl...

[Pengcheng Wang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: feabb30f0feef2361ac301618ff56566289919e7
      https://github.com/llvm/llvm-project/commit/feabb30f0feef2361ac301618ff56566289919e7
  Author: Pengcheng Wang <wangpengcheng.pp at bytedance.com>
  Date:   2026-09-10 (Thu, 10 Sep 2026)

  Changed paths:
    M llvm/lib/CodeGen/MachineScheduler.cpp
    A llvm/test/CodeGen/SystemZ/postra-sched-filter.mir

  Log Message:
  -----------
  [MISched] Apply debug filters before starting a block (#222270)

Apply the `misched-only-func` and `misched-only-block` filters before
calling `startBlock`. This avoids entering a target scheduling strategy
for a filtered block without a matching `finishBlock`/`leaveMBB` call.

Add a SystemZ post-RA scheduler regression that checks a filtered block
does not contribute hazard-recognizer state.

Split from #221984 in response to review.



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