[all-commits] [llvm/llvm-project] fc672b: [AMDGPU] Improved wide multiplies

[Jessica Del via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fc672b6a8b48195b7afaba6f0f9d64e579b1dc72
      https://github.com/llvm/llvm-project/commit/fc672b6a8b48195b7afaba6f0f9d64e579b1dc72
  Author: Jessica Del <Jessica.Del at amd.com>
  Date:   2023-02-22 (Wed, 22 Feb 2023)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/Legalizer.h
    M llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
    M llvm/lib/CodeGen/GlobalISel/Legalizer.cpp
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/mul-known-bits.i64.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/mul-known-bits.i64.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/sdiv.i64.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/srem.i64.ll
    M llvm/unittests/CodeGen/GlobalISel/LegalizerTest.cpp

  Log Message:
  -----------
  [AMDGPU] Improved wide multiplies

These checks show optimized instructions if an operand is known to be
(partially) zero.

Change-Id: Ie2f6d0d3ee9d5b279d1f4c1dd0787492e39cc77a

Differential Revision: https://reviews.llvm.org/D140208