[PATCH] D158232: [GlobalISel][Mips] Sync G_UADDE and G_USUBE legalization with LegalizeDAG.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: arsenm, aemerson, atanasyan, dsanders, Petar.Avramovic, eli.friedman.
Herald added subscribers: luismarques, s.egerton, PkmX, jrtc27, simoncook, hiraditya, arichardson, sdardis.
Herald added a project: All.
craig.topper requested review of this revision.
Herald added subscribers: wangpc, wdng.
Herald added a project: LLVM.

This modifies the G_UADDE to a version that looks shorter on
Mips and RISC-V when feeding the equivalent IR to SelectionDAG.
This also removes the boolean select from G_USUBE.

Comments taken from LegalizeDAG and tweaked.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D158232

Files:
  llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  llvm/test/CodeGen/Mips/GlobalISel/legalizer/add.mir
  llvm/test/CodeGen/Mips/GlobalISel/legalizer/sub.mir
  llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/add.ll
  llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/sub.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D158232.551321.patch
Type: text/x-patch
Size: 11654 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20230817/f79c84bf/attachment.bin>