[PATCH] D87936: [GISel] Add new combines for G_ADD

[Michael Kitzan via Phabricator via llvm-commits]

mkitzan updated this revision to Diff 292930.
mkitzan added a comment.

- Changed `G_ADD(x, -cst)` -> `G_SUB(x, cst)` to use `APInt`
- Added vector and `s128` test cases (though some combines don't fire with these input types)


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D87936/new/

https://reviews.llvm.org/D87936

Files:
  llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
  llvm/include/llvm/CodeGen/GlobalISel/Utils.h
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
  llvm/lib/CodeGen/GlobalISel/Utils.cpp
  llvm/test/CodeGen/AArch64/GlobalISel/combine-add.mir
  llvm/test/CodeGen/AMDGPU/GlobalISel/add.v2i16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.i128.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/saddsat.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/sdiv.i32.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/sdiv.i64.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/srem.i32.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/srem.i64.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/ssubsat.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/udiv.i32.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/udiv.i64.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/urem.i32.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/urem.i64.ll

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