[all-commits] [llvm/llvm-project] 2d8731: [GlobalISel] Rewrite some simple rules using MIR P...

[Pierre van Houtryve via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2d87319f06ef936233ba6aaa612da9586c427d68
      https://github.com/llvm/llvm-project/commit/2d87319f06ef936233ba6aaa612da9586c427d68
  Author: pvanhout <pierre.vanhoutryve at amd.com>
  Date:   2023-08-22 (Tue, 22 Aug 2023)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
    M llvm/include/llvm/Target/GlobalISel/Combine.td
    M llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
    M llvm/test/CodeGen/AArch64/GlobalISel/combine-select.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/postlegalizercombiner-select.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/prelegalizercombiner-not-really-equiv-insts.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/prelegalizercombiner-trivial-arith.mir

  Log Message:
  -----------
  [GlobalISel] Rewrite some simple rules using MIR Patterns

Rewrites some simple rules that cause little to no codegen regressions as MIR patterns.

I may have missed some easy cases, but some other rules have intentionally been left as-is because bigger
changes are needed to make them work.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D157690