[all-commits] [llvm/llvm-project] f01cbe: [SLP] Recompute deps of copyable-modeled operands ...

[Alexey Bataev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f01cbe77581aab4079888d3356997ac0b7551c76
      https://github.com/llvm/llvm-project/commit/f01cbe77581aab4079888d3356997ac0b7551c76
  Author: Alexey Bataev <a.bataev at outlook.com>
  Date:   2026-06-11 (Thu, 11 Jun 2026)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
    A llvm/test/Transforms/SLPVectorizer/AArch64/recalc-copyable-operand-deps-direct-use.ll

  Log Message:
  -----------
  [SLP] Recompute deps of copyable-modeled operands used directly

An instruction modeled as a copyable element elsewhere can also be used
directly by a later-built node sharing an instruction with the copyable
nodes. The direct use was not counted, so the scheduler over-decremented
the operand and tripped the unscheduled-deps assertion. Defer
recomputation whenever the operand is modeled as a copyable element
anywhere.

Reviewers: 

Pull Request: https://github.com/llvm/llvm-project/pull/203342



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