[all-commits] [llvm/llvm-project] 1cdffa: [MachineCombiner][RISCV] Support inverse instructi...

[Anton Sidorenko via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1cdffa359a3344f966ed309de17af17f8abfbe4d
      https://github.com/llvm/llvm-project/commit/1cdffa359a3344f966ed309de17af17f8abfbe4d
  Author: Anton Sidorenko <anton.sidorenko at syntacore.com>
  Date:   2022-12-15 (Thu, 15 Dec 2022)

  Changed paths:
    M llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
    M llvm/lib/Target/RISCV/RISCVInstrInfo.h
    M llvm/test/CodeGen/RISCV/machine-combiner.ll

  Log Message:
  -----------
  [MachineCombiner][RISCV] Support inverse instructions reassociation

This patch adds reassociation of FADD/FSUB instruction pairs.

Differential Revision: https://reviews.llvm.org/D138660