[all-commits] [llvm/llvm-project] 9ce4f3: [AMDGPU][GlobalISel] Fix legalization of G_UMULH

[Jay Foad via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9ce4f372067c0e2cb5844c4a8e52c8cacd6877c5
      https://github.com/llvm/llvm-project/commit/9ce4f372067c0e2cb5844c4a8e52c8cacd6877c5
  Author: Jay Foad <jay.foad at amd.com>
  Date:   2021-10-05 (Tue, 05 Oct 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-umulh.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-umulo.mir

  Log Message:
  -----------
  [AMDGPU][GlobalISel] Fix legalization of G_UMULH

Scalarize before narrowing because the narrowing implementation does not
work on vectors. This matches what we do for regular G_MUL.

Differential Revision: https://reviews.llvm.org/D111129