[all-commits] [llvm/llvm-project] f22f45: [GlobalISel] Implement widenScalar for carry-in ad...

[Cassie Jones via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f22f4557a749339e6865bbd16937c4f937eb4f6c
      https://github.com/llvm/llvm-project/commit/f22f4557a749339e6865bbd16937c4f937eb4f6c
  Author: Cassie Jones <code at witchoflight.com>
  Date:   2021-01-28 (Thu, 28 Jan 2021)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    M llvm/test/CodeGen/AArch64/GlobalISel/legalize-sadde.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/legalize-ssube.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/legalize-uadde.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/legalize-usube.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-sadde.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-ssube.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-uadde.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-usube.mir
    M llvm/unittests/CodeGen/GlobalISel/LegalizerHelperTest.cpp

  Log Message:
  -----------
  [GlobalISel] Implement widenScalar for carry-in add/sub

These are widened to a wider UADDE/USUBE, with the overflow value
unused, and with the same synthesis of a new overflow value as for the
O operations.

Reviewed By: paquette

Differential Revision: https://reviews.llvm.org/D95326