Commit Graph

5 Commits

Author SHA1 Message Date
Balazs Benics 63d3aeb529 [analyzer] Fix out-of-tree only clang build by not relaying on private header
It turned out that the D78704 included a private LLVM header, which is excluded
from the LLVM install target.
I'm substituting that `#include` with the public one by moving the necessary
`#define` into that. There was a discussion about this at D78704 and on the
cfe-dev mailing list.

I'm also placing a note to remind others of this pitfall.

Reviewed By: mgorny

Differential Revision: https://reviews.llvm.org/D84929
2020-07-31 10:28:14 +02:00
Balazs Benics de361df3f6 [analyzer][Z3-refutation] Fix a refutation BugReporterVisitor bug
FalsePositiveRefutationBRVisitor had a bug where the constraints were not
properly collected thus crosschecked with Z3.
This patch demonstratest and fixes that bug.

Bug:
The visitor wanted to collect all the constraints on a BugPath.
Since it is a visitor, it stated the visitation of the BugPath with the node
before the ErrorNode. As a final step, it visited the ErrorNode explicitly,
before it processed the collected constraints.

In principle, the ErrorNode should have visited before every other node.
Since the constraints were collected into a map, mapping each symbol to its
RangeSet, if the map already had a mapping with the symbol, then it was skipped.

This behavior was flawed if:
We already had a constraint on a symbol, but at the end in the ErrorNode we have
a tighter constraint on that. Therefore, this visitor would not utilize that
tighter constraint during the crosscheck validation.

Differential Revision: https://reviews.llvm.org/D78457
2020-06-29 18:51:24 +02:00
Balazs Benics fe0a555aa3 [analyzer][NFC] Add unittest for FalsePositiveRefutationBRVisitor
Adds the test infrastructure for testing the FalsePositiveRefutationBRVisitor.
It will be extended in the D78457 patch, which demonstrates and fixes a bug in
the visitor.

Differential Revision: https://reviews.llvm.org/D78704
2020-06-29 18:18:43 +02:00
Dmitri Gribenko a44425f25b Revert "[analyzer][NFC] Add unittest for FalsePositiveRefutationBRVisitor"
This reverts commit e22cae32c5. It broke
the build:

FalsePositiveRefutationBRVisitorTest.cpp:112:3: error: use of undeclared identifier 'LLVM_WITH_Z3'
2020-06-29 17:00:15 +02:00
Balazs Benics e22cae32c5 [analyzer][NFC] Add unittest for FalsePositiveRefutationBRVisitor
Adds the test infrastructure for testing the FalsePositiveRefutationBRVisitor.
It will be extended in the D78457 patch, which demonstrates and fixes a bug in
the visitor.

Differential Revision: https://reviews.llvm.org/D78704
2020-06-29 16:54:17 +02:00