Momchil Velikov 6192c312cf [AA] Correctly maintain the sign of PartiaAlias offset ...

Preserve the invariant that offset reported in the case of a
`PartialAlias` between `Loc1` and `Loc2`, is such that
`Loc1 + Offset = Loc2`, where `Loc1` and `Loc2` are the first and
the second argument, respectively, in alias queries.

Differential Revision: https://reviews.llvm.org/D115927

2021-12-17 15:45:26 +00:00

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