[all-commits] [llvm/llvm-project] c3dfbb: [AArch64][GlobalISel] Add commute_constant_to_rhs ...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c3dfbb6f49845edd4b953055f5fe14257fad6b58
      https://github.com/llvm/llvm-project/commit/c3dfbb6f49845edd4b953055f5fe14257fad6b58
  Author: David Green <david.green at arm.com>
  Date:   2024-02-11 (Sun, 11 Feb 2024)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64Combine.td
    M llvm/test/CodeGen/AArch64/GlobalISel/arm64-atomic.ll
    M llvm/test/CodeGen/AArch64/vecreduce-fadd-strict.ll
    M llvm/test/CodeGen/AArch64/vecreduce-fmul-strict.ll

  Log Message:
  -----------
  [AArch64][GlobalISel] Add commute_constant_to_rhs to post legalizer combiners (#81103)

This helps the fp reductions, moving the constant operands to the RHS
which in turn helps simplify away fadd -0.0 and fmul 1.0.