[PATCH] D70184: [MIPS GlobalISel] Select addiu

[Petar Avramovic via Phabricator via llvm-commits]

Petar.Avramovic created this revision.
Petar.Avramovic added reviewers: atanasyan, petarj.
Herald added subscribers: llvm-commits, jrtc27, hiraditya, arichardson, rovka, sdardis.
Herald added a project: LLVM.

Introduce IntImmLeaf version of PatLeaf immSExt16 for 32-bit immediates.
Change immSExt16 with imm32SExt16 for addiu.
This keeps same behavior for SDAG and allows for GlobalISel selectImpl
to select 'G_CONSTANT imm' + G_ADD into ADDIu when 32-bit imm satisfies
imm32SExt16 predicate: sign extending 16 low bits of imm is equal to imm.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D70184

Files:
  llvm/lib/Target/Mips/MipsInstrInfo.td
  llvm/test/CodeGen/Mips/GlobalISel/instruction-select/add.mir
  llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/add.ll
  llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/dyn_stackalloc.ll

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