[PATCH] D63812: [InstCombine] Shift amount reassociation (PR42391)

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri updated this revision to Diff 207078.
lebedev.ri marked 3 inline comments as done.
lebedev.ri edited the summary of this revision.
lebedev.ri added a comment.

Preserve flag (`nuw`/`nsw`/`exact`) if both shifts had it.
PTAL.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63812/new/

https://reviews.llvm.org/D63812

Files:
  lib/Transforms/InstCombine/InstCombineShifts.cpp
  test/Transforms/InstCombine/shift-amount-reassociation.ll

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