[all-commits] [llvm/llvm-project] 86bd12: [SystemZ] Fold i16/i32/i64 logical RMW operations ...

[anoopkg6 via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 86bd12d5cb40103937484a43386801b4e5353da5
      https://github.com/llvm/llvm-project/commit/86bd12d5cb40103937484a43386801b4e5353da5
  Author: anoopkg6 <anoop.kumar6 at ibm.com>
  Date:   2026-08-05 (Wed, 05 Aug 2026)

  Changed paths:
    M llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
    M llvm/lib/Target/SystemZ/SystemZInstrInfo.td
    M llvm/lib/Target/SystemZ/SystemZOperands.td
    M llvm/lib/Target/SystemZ/SystemZOperators.td
    M llvm/lib/Target/SystemZ/SystemZPatterns.td
    M llvm/lib/Target/SystemZ/SystemZTargetTransformInfo.cpp
    M llvm/test/Analysis/CostModel/SystemZ/fold-rmw-cost.ll
    M llvm/test/CodeGen/SystemZ/and-05.ll
    M llvm/test/CodeGen/SystemZ/or-05.ll
    M llvm/test/CodeGen/SystemZ/xor-05.ll

  Log Message:
  -----------
  [SystemZ] Fold i16/i32/i64 logical RMW operations into memory operands in TableGen (#192802)

Add support for folding logical operations with 8-bit immediates into
memory operands for i16, i32, and i64 types to target LSB. It handles
both 12-bit (NI, OI, XI) and 20-bit signed (NIY, OIY, XIY) displacements.

---------

Co-authored-by: anoopkg6 <anoopkg6 at github.com>



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