[PATCH] D34029: Infer lowest bits of an integer Multiply when the low bits of the operands are known

Pedro Ferreira via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Jul 19 02:27:54 PDT 2017


PFerreira updated this revision to Diff 107267.
PFerreira added a comment.

Thanks for the suggestion. This was fun!

I've updated the diff with your improvement suggestion, and changed the expected results of the unit tests to match.
I took the opportunity to refactor the trail-zero computation since this new method can compute the trailing zeros of the result.


https://reviews.llvm.org/D34029

Files:
  lib/Analysis/ValueTracking.cpp
  unittests/Analysis/ValueTrackingTest.cpp

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