[PATCH] D49759: Fix llvm::ComputeNumSignBits with some operations and llvm.assume

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec created this revision.
rampitec added reviewers: artem.tamazov, arsenm.
Herald added a subscriber: wdng.

Currently ComputeNumSignBits does early exit while processing some
of the operations (add, sub, mul, and select). This prevents the
function from using AssumptionCacheTracker if passed.


https://reviews.llvm.org/D49759

Files:
  lib/Analysis/ValueTracking.cpp
  test/Analysis/ValueTracking/numsignbits-from-assume.ll

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