[PATCH] D67181: [MIPS GlobalISel] Select G_FENCE

[Petar Avramovic via Phabricator via llvm-commits]

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

G_FENCE comes form fence instruction. For MIPS fence is generated in
AtomicExpandPass when atomic instruction gets surrounded with fence
instruction when needed.
G_FENCE arguments don't have LLT, because of that there is no job for
legalizer and regbankselect. Instruction select G_FENCE for MIPS32.


Repository:
  rL LLVM

https://reviews.llvm.org/D67181

Files:
  lib/Target/Mips/MipsInstructionSelector.cpp
  test/CodeGen/Mips/GlobalISel/instruction-select/fence.mir
  test/CodeGen/Mips/GlobalISel/legalizer/fence.mir
  test/CodeGen/Mips/GlobalISel/llvm-ir/fence.ll
  test/CodeGen/Mips/GlobalISel/regbankselect/fence.mir

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