[PATCH] D78092: [GlobalISel] add legalization for G_FREEZE

[Dominik Montada via Phabricator via llvm-commits]

gargaroff created this revision.
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gargaroff updated this revision to Diff 257250.
gargaroff added a comment.

remove misleading comment


gargaroff added a comment.

Our backend doesn't support vectors, so I'm really not too familiar with the legalization of them. I tried to implement vector legalization to the best of my understanding, but if there are any problems with those, I'd be very grateful if you could point me in the right direction.


Copy the legalization rules from SelectionDAG:
-widenScalar using anyext
-narrowScalar using unmerge/extract
-scalarize/fewerElements using unmerge
-moreElements using G_IMPLICIT_DEF and insert

Depends on D77795 <https://reviews.llvm.org/D77795>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D78092

Files:
  llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
  llvm/unittests/CodeGen/GlobalISel/LegalizerHelperTest.cpp

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