[all-commits] [llvm/llvm-project] 2ad108: [X86] Match SETCC_CARRY in addition of SUB when tr...

[deadalnix via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2ad1089d632bd356cb61fba1690c5dcdbc78ba83
      https://github.com/llvm/llvm-project/commit/2ad1089d632bd356cb61fba1690c5dcdbc78ba83
  Author: deadalnix <deadalnix at gmail.com>
  Date:   2025-02-14 (Fri, 14 Feb 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/memcmp-more-load-pairs-x32.ll
    M llvm/test/CodeGen/X86/memcmp-more-load-pairs.ll
    M llvm/test/CodeGen/X86/memcmp-optsize-x32.ll
    M llvm/test/CodeGen/X86/memcmp-optsize.ll
    M llvm/test/CodeGen/X86/memcmp-pgso-x32.ll
    M llvm/test/CodeGen/X86/memcmp-pgso.ll
    M llvm/test/CodeGen/X86/memcmp-x32.ll
    M llvm/test/CodeGen/X86/memcmp.ll
    M llvm/test/CodeGen/X86/midpoint-int.ll
    M llvm/test/CodeGen/X86/select.ll

  Log Message:
  -----------
  [X86] Match SETCC_CARRY in addition of SUB when trying to reconstruct LEA (#126551)

As per title.

This is not a huge deal at the moment, but becomes one when matching
node in topological order in the DAGCombiner, and is generally more
stable than the existing.



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