[all-commits] [llvm/llvm-project] 97e955: Revert "[CodeGen] Fix DetectDeadLanes for same-cla...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 97e9558844822e1ff8f986319ef354fda42b8215
      https://github.com/llvm/llvm-project/commit/97e9558844822e1ff8f986319ef354fda42b8215
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-09-26 (Sat, 26 Sep 2026)

  Changed paths:
    M llvm/lib/CodeGen/DetectDeadLanes.cpp
    R llvm/test/CodeGen/AMDGPU/detect-dead-lanes-reg-sequence-narrow-slot.mir
    M llvm/test/CodeGen/AMDGPU/frem.ll
    R llvm/test/CodeGen/AMDGPU/true16-uniform-f16-phi-copysign.ll

  Log Message:
  -----------
  Revert "[CodeGen] Fix DetectDeadLanes for same-class copies with mismatched widths" (#226665)

Reverts llvm/llvm-project#226556

This is handling malformed IR and adding size based instead of register
class based reasoning



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