[all-commits] [llvm/llvm-project] f01775: [GISel] Combine compare of bitfield extracts or'd ...

[Pierre van Houtryve via All-commits]

  Branch: refs/heads/users/pierre-vh/gisel-combine-workitem-intrinsics
  Home:   https://github.com/llvm/llvm-project
  Commit: f0177582a59b5b9acb463f64b06863b469c54e7b
      https://github.com/llvm/llvm-project/commit/f0177582a59b5b9acb463f64b06863b469c54e7b
  Author: pvanhout <pierre.vanhoutryve at amd.com>
  Date:   2025-06-27 (Fri, 27 Jun 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
    M llvm/include/llvm/Target/GlobalISel/Combine.td
    M llvm/lib/CodeGen/GlobalISel/CombinerHelperCompares.cpp
    A llvm/test/CodeGen/AMDGPU/GlobalISel/combine-cmp-merged-bfx.mir
    M llvm/test/CodeGen/AMDGPU/workitems-intrinsics-opts.ll

  Log Message:
  -----------
  [GISel] Combine compare of bitfield extracts or'd together.

Equivalent of the previous DAG patch for GISel.
The shifts are BFXs in GISel, so the canonical form of the entire expression
is different than in the DAG. The mask is not at the root of the expression, it
remains on the leaves instead.

See #136727



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications