[PATCH] D71264: [BasicAA] Use GEP as context for computeKnownBits in aliasGEP.

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: anemet, asbirlea, hfinkel, spatel.
Herald added subscribers: arphaman, hiraditya.
Herald added a project: LLVM.

In order to use assumptions, computeKnownBits needs a context
instruction. We can use the GEP, if it is an instruction. We already
pass the assumption cache, but it cannot be used without a context
instruction.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D71264

Files:
  llvm/lib/Analysis/BasicAliasAnalysis.cpp
  llvm/test/Analysis/BasicAA/assume-index-positive.ll

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