| a4de17562d13d7a8188108243c4cfbd52f33229a |
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04-Mar-2016 |
Pirama Arumuga Nainar <pirama@google.com> |
Update aosp/master clang for rebase to r256229
http://b/26987366
(cherry picked from commit 87d948ecccffea9e9e37d0d053b246e2d6d6c47b)
Change-Id: I10ca401a280e905253aafabad9118693a2f24ffb
/external/clang/test/Analysis/diagnostics/deref-track-symbolic-region.c
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| 0e2c34f92f00628d48968dfea096d36381f494cb |
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23-Mar-2015 |
Stephen Hines <srhines@google.com> |
Update aosp/master clang for rebase to r230699.
Change-Id: I6a546ab3d4ae37119eebb735e102cca4f80ab520
/external/clang/test/Analysis/diagnostics/deref-track-symbolic-region.c
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| 048eeea6852043990c87e52938b53b5337bd098e |
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04-Jun-2013 |
Jordan Rose <jordan_rose@apple.com> |
[analyzer] Enable the new edge algorithm by default.
...but don't yet migrate over the existing plist tests. Some of these
would be trivial to migrate; others could use a bit of inspection first.
In any case, though, the new edge algorithm seems to have proven itself,
and we'd like more coverage (and more usage) of it going forwards.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183165 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/diagnostics/deref-track-symbolic-region.c
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| 5b90ae7ba05a10a81f107ec1635deb1bd7292936 |
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18-Apr-2013 |
Anna Zaks <ganna@apple.com> |
[analyzer] Allow TrackConstraintBRVisitor to work when the value it’s tracking is not live in the last node of the path
We always register the visitor on a node in which the value we are tracking is live and constrained. However,
the visitation can restart at a node, later on the path, in which the value is under constrained because
it is no longer live. Previously, we just silently stopped tracking in that case.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179731 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/diagnostics/deref-track-symbolic-region.c
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| cc5dbdae70c6eb2423921f52a35ba4686d2969cf |
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02-Mar-2013 |
Anna Zaks <ganna@apple.com> |
[analyzer] Simple inline defensive checks suppression
Inlining brought a few "null pointer use" false positives, which occur because
the callee defensively checks if a pointer is NULL, whereas the caller knows
that the pointer cannot be NULL in the context of the given call.
This is a first attempt to silence these warnings by tracking the symbolic value
along the execution path in the BugReporter. The new visitor finds the node
in which the symbol was first constrained to NULL. If the node belongs to
a function on the active stack, the warning is reported, otherwise, it is
suppressed.
There are several areas for follow up work, for example:
- How do we differentiate the cases where the first check is followed by
another one, which does happen on the active stack?
Also, this only silences a fraction of null pointer use warnings. For example, it
does not do anything for the cases where NULL was assigned inside a callee.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176402 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/diagnostics/deref-track-symbolic-region.c
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| 43b82b823a6113fdbee54243b280db9c55ef72cb |
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24-Feb-2013 |
Ted Kremenek <kremenek@apple.com> |
[analyzer] tracking stores/constraints now works for ObjC ivars or struct fields.
This required more changes than I originally expected:
- ObjCIvarRegion implements "canPrintPretty" et al
- DereferenceChecker indicates the null pointer source is an ivar
- bugreporter::trackNullOrUndefValue() uses an alternate algorithm
to compute the location region to track by scouring the ExplodedGraph.
This allows us to get the actual MemRegion for variables, ivars,
fields, etc. We only hand construct a VarRegion for C++ references.
- ExplodedGraph no longer drops nodes for expressions that are marked
'lvalue'. This is to facilitate the logic in the previous bullet.
This may lead to a slight increase in size in the ExplodedGraph,
which I have not measured, but it is likely not to be a big deal.
I have validated each of the changed plist output.
Fixes <rdar://problem/12114812>
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175988 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/diagnostics/deref-track-symbolic-region.c
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| c1c6a4981a4b50476d71c88f8dac81a1430885ed |
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08-Jan-2013 |
Anna Zaks <ganna@apple.com> |
[analyzer] Plist: change the type of issue_hash from int to string.
This gives more flexibility to what could be stored as issue_hash.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171824 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/diagnostics/deref-track-symbolic-region.c
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| d91696e8680bbe89df1076fded1bc54104526060 |
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06-Sep-2012 |
Anna Zaks <ganna@apple.com> |
[analyzer] NullOrUndef diagnostics: track symbols binded to regions.
If a region is binded to a symbolic value, we should track the symbol.
(The code I changed was not previously exercised by the regression
tests.)
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163261 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/test/Analysis/diagnostics/deref-track-symbolic-region.c
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