[all-commits] [llvm/llvm-project] 806818: CodeGen: Remove LiveVariables use from TwoAddressI...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8068182dd6fb1a8efae0291db1d2462d29025cd1
      https://github.com/llvm/llvm-project/commit/8068182dd6fb1a8efae0291db1d2462d29025cd1
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2026-10-01 (Thu, 01 Oct 2026)

  Changed paths:
    M llvm/lib/CodeGen/TwoAddressInstructionPass.cpp
    M llvm/test/CodeGen/Hexagon/two-addr-tied-subregs.mir
    M llvm/test/CodeGen/SystemZ/twoaddr-kill.mir
    M llvm/test/CodeGen/X86/statepoint-cmp-sunk-past-statepoint.ll
    M llvm/test/CodeGen/X86/statepoint-vreg-unlimited-tied-opnds.ll
    M llvm/test/CodeGen/X86/two-address-subreg-to-reg-kill.mir
    M llvm/test/CodeGen/X86/twoaddr-dbg-value.mir

  Log Message:
  -----------
  CodeGen: Remove LiveVariables use from TwoAddressInstructionPass (#225176)

Now that LiveIntervals is computed unconditionally before TwoAddressInstructions 
in the pipeline, the pass no longer needs LiveVariables.

Co-authored-by: Claude (Claude-Opus-4.8) <noreply at anthropic.com>



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