[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 Oct 4 03:45:11 PDT 2017


PFerreira updated this revision to Diff 117654.
PFerreira added a comment.

I've added Eli's proof to it, not sure exactly how to present it.

Took me a bit to digest it, but I agree that it matches what I'm trying to do in this patch. I can try to describe the definition of C7 in plain text (correlate it to the variables declared in the patch) if you prefer.


https://reviews.llvm.org/D34029

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

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