[PATCH] D123962: [InstCombine] fold freeze of partial undef/poison vector constants

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 423600.
spatel added a comment.

Patch updated:

1. Added an explanatory comment for the position of this fold.
2. Added TODO comment for enhancement.
3. Added an assert for "BestValue" (suggested in D84948 <https://reviews.llvm.org/D84948>, but didn't make it in).

These all apply to the existing code, so that could be an NFC pre-commit if preferred.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123962/new/

https://reviews.llvm.org/D123962

Files:
  llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
  llvm/test/Transforms/InstCombine/freeze-phi.ll
  llvm/test/Transforms/InstCombine/freeze.ll
  llvm/test/Transforms/InstCombine/select.ll

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