Florian Hahn bd12a322d7 [BasicAA] Use GEP as context for computeKnownBits in aliasGEP. ...

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.

Reviewers: anemet, asbirlea, hfinkel, spatel

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D71264

2019-12-12 17:18:04 +00:00

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