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2009-05-08Fix PR4182.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71288 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08retain/release checker: Refactor error-reporting code in EvalDeadSymbols andTed Kremenek
EvalEndPath. This sets the stage for handling autorelease counts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71283 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Make BlockEntrace program points taggable.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71280 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08retain checker: Track the number of times a tracked object is sentTed Kremenek
'autorelease'. This isn't used yet to flag errors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71244 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Remove experimental ownership attributes from Clang.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71216 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Region store: when casting VarRegions, if the cast-to pointee type is Zhongxing Xu
incomplete, do not compute its size and return the original region. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Replace the heuristic isSmallerThan with ASTContext::getTypeSize().Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71206 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Replace getTypeWidth() with ASTContext::getTypeSize().Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71205 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Revert r71079.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71202 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08Fix <rdar://problem/6845148>. Signed integers compared against pointers shouldTed Kremenek
implicitly be changed to unsigned values in GRSimpleVals.cpp. This can happen when the comparison involves logic in specialized transfer functions (e.g., OSAtomicCompareAndSwap). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71200 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-07Minor code cleanup in retain/release checker in preparation for someTed Kremenek
other changes. Instead of repeatedly checking for GC mode when getting the return effect, just do this computation once. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-07More attribute renaming:Ted Kremenek
- Rename 'ns_returns_owned' -> 'ns_returns_retained'. - Rename 'cf_returns_owned' -> 'cf_returns_retained'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71182 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-07analyzer: Add ProgramPoint 'PostLValue' just to distinguish (forTed Kremenek
analysis introspection) when we computed an lvalue. This shouldn't effect the current analysis results in any way. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71169 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-07Add preliminary support for enhancing null-pointer dereference diagnostics.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71135 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06Refactor BugReporter interface to have a new 'BugReporterContext' andTed Kremenek
'BugReporterVisitor'. This simplifies callbacks from BugReporter to BugReports (via VisitNode). It also lays the foundation for arbitrary visitor "call backs" that can be registered to a BugReporterContext as a PathDiagnostic is constructed. These call backs can help operate as separate "experts" that can work on constructed pieces of a PathDiagnostic for which they possess special knowledge. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71121 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06Fix analyzer regression reported in PR 4164:Ted Kremenek
- Update the old StoreManager::CastRegion to strip off 'ElementRegions' when casting to void* (Zhongxing: please validate) - Pass-by-reference argument invalidation logic in CFRefCount.cpp: - Strip ElementRegions when the ElementRegion is just a 'raw data' view on top of the underlying typed region. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71094 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06Improve RegionStoreManager::getSizeInElements()Zhongxing Xu
- add a static function getTypeWidth(), which computes the width of a type with the help of TargetInfo. - no-outofbounds.c now passes for region store. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71080 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06Add a GDM for recording the cast type of regions.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71076 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06The super region of ElementRegion no longer needs to be TypedRegion. In theZhongxing Xu
future we would create ElementRegion directly on top of typeless regions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71075 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06Implement a heuristic type size comparison method for now.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71074 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06remove commented code.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71060 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06Make StoreManager::CastRegion() virtual and implement a new CastRegion() forZhongxing Xu
RegionStore. This CastRegion() performs casts according to the kind of the region being cast instead of the type that is cast to. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-05BugReporter (extensive diagnostics): improve location context generation for theTed Kremenek
start of 'do' and '@synchronized' statements. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71038 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-05BugReporter (extensive diagnostics): Fix getEnclosingStmtLocation to reasonTed Kremenek
about Exprs that are not consumed and fix where the loop iteration diagnostic goes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@71027 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-05Implement attribute 'ns_autorelease'.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70990 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-05Implement attribute 'cf_returns_owned' (mirrors 'ns_returns_owned').Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-05Fix unused variable warningTed Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70946 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-05Remove possibly incorrect assertion that doesn't matter.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70943 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Remove experimental attribute 'ns_ownership_make_collectable.'Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70940 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Rename attributes 'objc_ownership...' to 'ns_ownership...'.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04BugReporter (extensive diagnostics): don't mark location contexts that areTed Kremenek
control-flow expressions as dead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70887 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Fix false positive null dereference by unifying code paths in GRSimpleVals forTed Kremenek
'==' and '!=' (some code in the '!=' was not replicated in the '==' code, causing some constraints to get lost). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Rename attributes:Ted Kremenek
'objc_ownership_cfretain' -> 'cf_ownership_retain' 'objc_ownership_cfrelease' -> 'cf_ownership_release' Motivation: Core Foundation objects can be used in isolation from Objective-C, and this forces users to reason about the separate semantics of CF objects. More Sema support pending. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70884 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04retain checker: Add checker support for FunctionDecl ownership annotations. ↵Ted Kremenek
Need to add Sema support. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70873 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04retain checker: Pull out logic for parameter annotations into aTed Kremenek
separate method. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70870 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04retain checker: Don't treat function's declared in macros differently.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70869 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Add array index assertion: BasicStore should not expect any fancyTed Kremenek
ElementRegions that have non-zero array indices. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70867 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Rename 'makeZeroIndex' to 'makeZeroArrayIndex'.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70865 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Zhongxing already implemented this FIXME.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70864 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04array indexes are unsigned integers of the same width as pointer.Zhongxing Xu
no-outofbounds.c still fails. Previously it passed because the array index is mistakenly a loc::ConcreteInt. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04BasicStore: 'ElementRegion' is the new 'TypedViewRegion'.Ted Kremenek
StoreManager: Handle casts from one element region to another. Update test cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Handle 'long x = 0; char *y = (char *) x;' by layering anTed Kremenek
'ElementRegion' on top of the VarRegion for 'x'. This causes the test case xfail_wine_crash.c to now pass for BasicStoreManager. It doesn't crash for RegionStoreManager either, but reports a bogus unintialized value warning. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70832 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Per conversations with Zhongxing, add an 'element type' toTed Kremenek
ElementRegion. I also removed 'ElementRegion::getArrayRegion', although we may need to add this back. This breaks a few test cases with RegionStore: - 'array-struct.c' triggers an infinite recursion in RegionStoreManager. Need to investigate. - misc-ps.m triggers a failure with RegionStoreManager as we now get the diagnostic: 'Line 159: Uninitialized or undefined return value returned to caller.' There were a bunch of places that needed to be edit RegionStoreManager, and we may not be passing all the correct 'element types' down from GRExprEngine. Zhongxing: When you get a chance, could you review this? I could have easily screwed up something basic in RegionStoreManager. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70830 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04retain checker:Ted Kremenek
- Fix retain checker test failures. - Update retain checker to have annotations override default summary effects, not completely redefine them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70828 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04retain checker: RetainSummaryManager now has a 'DefaultSummary' objectTed Kremenek
which is returned instead of a null pointer. This helps centralize the logic concerning "default effects". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70826 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04retain checker: Don't bother using a FoldingSet to unique summaries.Ted Kremenek
We never compare summaries by their pointers, and we create only a handful of them when analyzing a given function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70824 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03Fix: <rdar://problem/6850275> CF objects returned from methods with "new" or ↵Ted Kremenek
"copy" in their name should be treated as owned For methods that follow the "fundamental rule" and return Core Foundation objects, treat those objects as owned by the caller. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70665 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03Convert ArgEffects from an std::vector to an ImmutableMap. This will make ↵Ted Kremenek
it much easier to clean up the summary generation logic with annotations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70660 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03Rename isTrackedObjectType() -> isTrackedObjCObjectType().Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70657 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03region store: make Retrieve() can retrieve embedded array correctly. AlsoZhongxing Xu
simplify the retrieve logic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70651 91177308-0d34-0410-b5e6-96231b3b80d8
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