Commit Graph

2 Commits

Author SHA1 Message Date
Gabor Marton a8297ed994 [Analyzer][solver] Handle adjustments in constraint assignor remainder
We can reuse the "adjustment" handling logic in the higher level
of the solver by calling `State->assume`.

Differential Revision: https://reviews.llvm.org/D112296
2021-10-27 17:14:34 +02:00
Gabor Marton 5f8dca0235 [Analyzer] Extend ConstraintAssignor to handle remainder op
Summary:
`a % b != 0` implies that `a != 0` for any `a` and `b`. This patch
extends the ConstraintAssignor to do just that. In fact, we could do
something similar with division and in case of multiplications we could
have some other inferences, but I'd like to keep these for future
patches.

Fixes https://bugs.llvm.org/show_bug.cgi?id=51940

Reviewers: noq, vsavchenko, steakhal, szelethus, asdenyspetrov

Subscribers:

Differential Revision: https://reviews.llvm.org/D110357
2021-10-22 10:47:25 +02:00