Commit Graph

6 Commits

Author SHA1 Message Date
Adam Balogh 9e63b190af [Analyzer] Handle pointer implemented as iterators in iterator checkers
Iterators are an abstraction of pointers and in some data structures
iterators may be implemented by pointers. This patch adds support for
iterators implemented as pointers in all the iterator checkers
(including iterator modeling).

Differential Revision: https://reviews.llvm.org/D82185
2020-07-01 09:04:28 +02:00
Adam Balogh 23022b9329 [Analyzer][NFC] Separate white-box tests for iterator modelling from iterator checker tests
The recently committed debug.IteratorDebugging checker enables
standalone white-box testing of the modelling of containers and
iterators. For the three checkers based on iterator modelling only
simple tests are needed.

Differential Revision: https://reviews.llvm.org/D70123
2019-11-14 16:32:19 +01:00
Adam Balogh d703305e40 [Analyzer] Skip symbolic regions based on conjured symbols in comparison of the containers of iterators
Checking whether two regions are the same is a partially decidable problem:
either we know for sure that they are the same or we cannot decide. A typical
case for this are the symbolic regions based on conjured symbols. Two
different conjured symbols are either the same or they are different. Since
we cannot decide this and want to reduce false positives as much as possible
we exclude these regions whenever checking whether two containers are the
same at iterator mismatch check.

Differential Revision: https://reviews.llvm.org/D53754

llvm-svn: 356049
2019-03-13 13:55:11 +00:00
Artem Dergachev ce42bd6765 [analyzer] MoveChecker: Enable by default as cplusplus.Move.
This checker warns you when you re-use an object after moving it.

Mostly developed by Peter Szecsi!

Differential Revision: https://reviews.llvm.org/D38675

llvm-svn: 349328
2018-12-17 06:30:39 +00:00
Adam Balogh 45ca9b705c [Analyzer] Iterator Checker - Part 10: Tests for iterators passed as parameter
In earlier Clang Static Analyzer versions `check::Bind() was not invoked for
parameter passing, so we needed a trick which is not needed anymore. However
add the tests to ensure its working.

Differential Revision: https::/reviews.llvm.org/D32906

llvm-svn: 344443
2018-10-13 10:24:48 +00:00
Adam Balogh bf77ab7f0e [Analyzer] Commit fix for rL341790/rC341790
Test file was accidentally not added for rL341790/rC341790 and subsequant patches.

llvm-svn: 341795
2018-09-10 09:19:54 +00:00