[all-commits] [llvm/llvm-project] 78da9f: MachineCombiner: Partially fix losing subregister ...

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/machine-combiner/fix-dropping-subreg-indexes
  Home:   https://github.com/llvm/llvm-project
  Commit: 78da9f1295503fcb36a9a61eb961c050d4ea8374
      https://github.com/llvm/llvm-project/commit/78da9f1295503fcb36a9a61eb961c050d4ea8374
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-06-26 (Thu, 26 Jun 2025)

  Changed paths:
    M llvm/lib/CodeGen/TargetInstrInfo.cpp
    A llvm/test/CodeGen/RISCV/rvv/machine-combiner-subreg-verifier-error.mir

  Log Message:
  -----------
  MachineCombiner: Partially fix losing subregister indexes

This fixes verifier errors in this test after earlier passes start
introducing more subregister uses. This probably isn't adequately
tested but I know nothing about this pass.


  Commit: 6b1e20987044753b8be1802f18180a37a7fba856
      https://github.com/llvm/llvm-project/commit/6b1e20987044753b8be1802f18180a37a7fba856
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-06-26 (Thu, 26 Jun 2025)

  Changed paths:
    M llvm/lib/CodeGen/TargetInstrInfo.cpp

  Log Message:
  -----------
  Try to track NewVR subreg through swap


Compare: https://github.com/llvm/llvm-project/compare/84a4aea9ece3...6b1e20987044

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