[PATCH] D64486: [MIPS GlobalISel] Skip copies in addUseDef and addDefUses

[Petar Avramovic via Phabricator via llvm-commits]

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

Skip copies between virtual registers during search for UseDefs
and DefUses.
Since each operand has one def search for UseDefs is straightforward.
But since operand can have many uses, we have to check all uses of
each copy we traverse during search for DefUses.


Repository:
  rL LLVM

https://reviews.llvm.org/D64486

Files:
  lib/Target/Mips/MipsRegisterBankInfo.cpp
  lib/Target/Mips/MipsRegisterBankInfo.h
  test/CodeGen/Mips/GlobalISel/regbankselect/TypeInfoforMF_skipCopies.mir

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