[all-commits] [llvm/llvm-project] f1245b: [CodeGen] Skip pseudo instructions in AggressiveAn...

[Pengcheng Wang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f1245b6a7b2fb2e5c96434b9fb3107b4cf873d10
      https://github.com/llvm/llvm-project/commit/f1245b6a7b2fb2e5c96434b9fb3107b4cf873d10
  Author: Pengcheng Wang <wangpengcheng.pp at bytedance.com>
  Date:   2026-09-10 (Thu, 10 Sep 2026)

  Changed paths:
    M llvm/lib/CodeGen/AggressiveAntiDepBreaker.cpp
    M llvm/test/CodeGen/Hexagon/anti-dep-partial.mir

  Log Message:
  -----------
  [CodeGen] Skip pseudo instructions in AggressiveAntiDepBreaker (#222271)

`ScheduleDAGInstrs` does not create SUnits for debug or pseudo
instructions. The aggressive anti-dependency breaker only skipped debug
instructions, so encountering a pseudo such as `PSEUDO_PROBE`
dereferenced a null SUnit.

Skip both debug and pseudo instructions and add a Hexagon regression
covering the existing aggressive anti-dependency path with legacy and
new machine pass managers.

Split from #221984 in response to review.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications