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2009-04-29retain/release checker: Refactor the guts of getClassMethodSummary to not dependTed Kremenek
on ObjCMessageExpr. This will enable us to use it elsewhere. This should not change any functionality. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70352 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28Implement ownership attribute 'objc_ownership_make_collectable'. This allows oneTed Kremenek
to add 'CFMakeCollectable' semantics to a method. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70336 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28Revert 70293.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70313 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28Now we can remove the 'blast-through' code.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70293 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27Add two new checker-specific attributes: 'objc_ownership_release' andTed Kremenek
'objc_ownership_cfrelease'. These are the 'release' equivalents of 'objc_ownership_retain' and 'objc_ownership_cfretain' respectively. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70235 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27Track objects in GC mode returned by 'alloc', 'new', etc. methods. These areTed Kremenek
treated as "not owned" objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70232 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27Add new checker-specific attribute 'objc_ownership_cfretain'. This is the sameTed Kremenek
as 'objc_ownership_cfretain' except that the method acts like a CFRetain instead of a [... retain] (important in GC modes). Checker support is wired up, but currently only for Objective-C message expressions (not function calls). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70218 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26Implement function-try-blocks. However, there's a very subtle bug that I ↵Sebastian Redl
can't track down. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70155 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25Hook up attribute 'objc_ownership_retain' to the analyzer. This attribute allowsTed Kremenek
users to specify that a method's argument is visibly retained (reference count incremented). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70008 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Hook up __attribute__((objc_ownership_returns)) to the retain/release checker.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70002 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Fix the same false positive reported in PR 2542 and <rdar://problem/6793409>Ted Kremenek
involving an NSAnimation object delegating its release to a delegate method. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69992 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Minor refactoring: pass selector to getCommonMethodSummary(). No functionalityTed Kremenek
change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69985 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24retain/release checker: more hacks to workaround false positives cause byTed Kremenek
delegates. When a reference counted object is passed as to a 'void*' argument to a method stop tracking the reference count. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69984 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Sentence case bug name.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69983 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24retain/release checker:Ted Kremenek
- Fix summary lookup for class methods to now use the (optional) ObjCInterfaceDecl associated with a message expression. This removes a long-standing FIXME. - Partial fix for <rdar://problem/6062730> by stop tracking objects that are passed to [NSObject performSelector]. These methods are often used for delegates, which the analyzer doesn't reason about well yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69982 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23Refactor common logic in getMethodSummary() and getClassMethodSummary(). NoTed Kremenek
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69936 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23Further cleanups to isTrackedObjectType().Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69929 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23retain/release checker: Don't call isTrackedObject() with the canonical type.Ted Kremenek
This was preventing the checker from tracking return objects referenced by 'id'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69922 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23retain/release checker: For class methods, only treat return values that areTed Kremenek
object references as tracked objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69915 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23Per discussions with Ken Ferry and Paul Marks (<rdar://problem/6815234>) greatlyTed Kremenek
extend the number of objects tracked by the retain/release checker by assuming that all class and instance methods should follow Cocoa object "getter" and "alloc/new" conventions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69908 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20get a CodeTextRegion when visiting FunctionDecl reference.Zhongxing Xu
get FunctionDecl with more general utility method. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69570 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18FunctionDecl::getBody() is getting an ASTContext argument for use inDouglas Gregor
lazy PCH deserialization. Propagate that argument wherever it needs to be. No functionality change, except that I've tightened up a few PCH tests in preparation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09- Move ownership of MemRegionManager into ValueManager.Ted Kremenek
- Pull SVal::GetConjuredSymbol() and friends into ValueManager. This greatly simplifies the calling interface to clients. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68731 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Propagate the ASTContext to various AST traversal and lookup functions.Douglas Gregor
No functionality change (really). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68726 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09analyzer: Introduce a new class, ValueManager, that serves as an aggregateTed Kremenek
"manager of symbolic values", wrapping BasicValueFactory, SymbolManager, and MemRegionManager. While these individual managers nicely separate functionality in the analyzer, constructing symbolic values can sometimes be cumbersome because it requires using multiple managers at once. The goal of this class is to create some factory methods to create SVals that require the use of these different managers, thus (hopefully) simplifying the analyzer API for clients. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68709 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09stop using loc::SymbolVal.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68696 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09stop using loc::SymbolVal.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68695 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09clean up code with new API.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68694 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09clean up code with new API.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68693 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Add a new method because sometimes the type of the conjured symbol is not theZhongxing Xu
type of the expression where we create the symbol. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68692 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09make a conjured symbol as the original code.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68691 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09clean up code with new API.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68687 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07Remove GetLeakNode. This isn't the right approach.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68502 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07Eagerly compute the leak location when a leak occurs at the end of a path.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68496 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07retain/release checker: When hunting for the leak location, don't walk theTed Kremenek
ExplodedGraph backwards. That may inadvertently result in reverse control-flow edges in the PathDiagostic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-03Sentence-case bug type.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-03retain/release checker: don't track NSPanel until we have better reasoning aboutTed Kremenek
the subtle ownership issues of such objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68397 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-02Fix grammar.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68282 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-02Title-case the names of bug types.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-01- Changed PathDiagnosticPiece::getLocation() to return a PathDiagnosticLocationTed Kremenek
instead of a FullSourceLoc. This resulted in a bunch of small edits in various clients. - Updated BugReporter to include an alternate PathDiagnostic generation algorithm for PathDiagnosticClients desiring more control-flow pieces. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-26analyzer infrastructure: make a bunch of changes to symbolic expressions thatTed Kremenek
Zhongxing and I discussed by email. Main changes: - Removed SymIntConstraintVal and SymIntConstraint - Added SymExpr as a parent class to SymbolData, SymSymExpr, SymIntExpr - Added nonloc::SymExprVal to wrap SymExpr - SymbolRef is now just a typedef of 'const SymbolData*' - Bunch of minor code cleanups in how some methods were invoked (no functionality change) This changes are part of a long-term plan to have full symbolic expression trees. This will be useful for lazily evaluating complicated expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67731 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-20retain/release checker: Tracking autorelease counts for objects. We're still notTed Kremenek
completely there with accurately modeling autorelease pools. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67384 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-17Stub out some code for support for NSDeallocateObject. This is enabled yet untilTed Kremenek
we resolve the semantics of this function when GC is enabled. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67116 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-17retain/release checker: Add support for reasoning about -dealloc.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67094 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13Fix PR 3677 [retain checker]: custom 'allocWithZone' methods should be allowedTed Kremenek
to return an owning pointer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66934 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-11Remove '[naming convention]' from bug type.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66739 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09retain/release checker: Allow allocations to fail by returning nil.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66487 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06Create PathDiagnosticPiece subclasses PathDiagnosticEventPiece andTed Kremenek
PathDiagnosticControlFlowPiece to distinguish (in the class hierarchy) between events and control-flow diagnostic pieces. Clients must now use these directly when constructing PathDiagnosticPieces. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66310 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05Minor tweak: Recognize 'CGCF' prefix in addition to 'CF' and 'CG'.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66208 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05BasicStore:Ted Kremenek
- Store bindings using a MemRegion -> SVal binding instead of VarDecl -> SVal binding. This mirrors some of the idea of RegionStore, but is far simpler and not nearly as functional. This leads to some code simplification and some potential for some minor precision hacks. Along the way... - constify the use of MemRegion* in a few places - add operator<<(llvm::raw_ostream, const MemRegion*) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66163 91177308-0d34-0410-b5e6-96231b3b80d8
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