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path: root/lib/Analysis/CFRefCount.cpp
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2008-05-09Rename IsPointerType to LVal::IsLValType, and update CFRefCount::EvalSummary ↵Ted Kremenek
to use IsLValType when conjuring symbols for return values (this fixes a bug with an assertion firing in the analyzer when two qualified objective-c types were compared). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50924 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Added support for "drain".Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50831 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Expand the CF retain checker to allow the Create/Get rule to apply to anyTed Kremenek
function that returns a CFxxxRef, not just functions whose name begins with CF. This implements <rdar://problem/5917879>. Added test case for this feature. Updated calls to CStrInCStrNoCase to swap their arguments, per compatibility with strcasestr. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50829 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Flip order of arguments to CStrInStrNoCase.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50824 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Use llvm::CStrInCStrNoCase instead of strcasestr, since the latter is not ↵Ted Kremenek
portable. Correctly check if the result of CStrInCStrNoCase is NULL to generate summaries; before we were inverting the condition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07copy-paste: NS types are not typedefs.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50817 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Do not treat **instance** methods "copyWithZone:" and "mutableCopyWithZone:" ↵Ted Kremenek
from NSObject as allocators. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50802 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Be less promiscuous with generating summaries for "new", "copy", "create".Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50798 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Added auto-summary generation for createXXX, copyXXX, newXXX methods.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50795 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Don't report leaks for autoreleased objects.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50777 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06More comments.Ted Kremenek
"#if 0" out some assumptions when auto-generating method summaries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50772 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Experiment with not converting bug names to lower case.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50753 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Generate "stop" summaries for selectors involving receivers whose type is ↵Ted Kremenek
not NSxxxx. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50721 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Use strncmp correctly.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50715 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Make string comparison legible and remove buffer overrun introduced by typo.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50714 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06String comparison cleanups.Ted Kremenek
Added test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50711 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Fix logic error in string processing.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50710 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Remove assertion.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50709 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Use EvalSummary to process message expressions, thereby unifying the checkerTed Kremenek
logic for function calls and message expressions. Use the following heuristic to infer "allocating" instance methods: [ClassName classWithXXX] allocates an object Update testcase to reflect this heuristic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50708 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Added receiver effects to EvalSummary.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50700 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Expand summaries to include "Receiver" effects.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50697 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Added initialization code to generate initial set of ObjC method summaries ↵Ted Kremenek
(non-instance methods). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50690 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06Added code to generate initial set of summaries for instance methods.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50689 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05Add summary generation for "initXXX" methods.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50684 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05Make CF retain diagnostics more succinct.Ted Kremenek
In a leak's "name", indicate GC or non-GC bugs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50680 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05Initial work on refactoring the CFRefCount checker so that it is moreTed Kremenek
generic and handles reference counts for NSObjects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50674 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05Improve leak diagnostics to not report a leak on the same line where Ted Kremenek
the object was last used. This can be confusing to users. For example: // 'y' is leaked x = foo(y); instead: x = foo(y); // 'y' is leaked git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50661 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05Improved leak diagnostics.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50657 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-05Minor refactorings/cleanups in CF retain checker and added support for ↵Ted Kremenek
NSMakeCollectable. Added test case for NSMakeCollectable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50653 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02Improved diagnostics for leaks: now we report which variable was leaked.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50588 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-02When running the reference count checker twice (GC and non-GC mode), only emitTed Kremenek
basic warnings (dead stores, null dereferences) on the first pass. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50584 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01Fix copy-paste bug.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50557 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01Remove no longer valid assertion.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50556 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01Added line number diagnostics to indicate the allocation site of the leaked ↵Ted Kremenek
object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50553 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01Do not highlight bogus ranges for leaks.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50549 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01Correctly invalidate reference count state when passing objects by reference ↵Ted Kremenek
in message expressions we don't understand. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50541 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01Renamed static method.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50533 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01When processing "release", "retain", and "autorelease" messages return theTed Kremenek
lval passed as an argument. Fix: Inverted diagnostic messages. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50513 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-01Added support for "autorelease" message in CF ref. count checker.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50512 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30added preliminary diagnostics in scan-build results to denote whetherTed Kremenek
a CF memory leak occurred with GC enabled, etc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50507 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30Teach more of the static analyzer about ObjCQualifiedIdType.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50494 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30Teach the static analysis engine about ObjCQualifiedIdType.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50493 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29Update typestate logic to support GC-mode.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50396 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29Implement semantics of CFMakeCollectable for the CF-reference count checker.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50395 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29Provide the option to run the CF-retain checker in GC enabled mode.Ted Kremenek
The transfer functions for the checker don't do anything special yet in GC mode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50394 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25Do a better job at computing dead symbols.Ted Kremenek
Implemented support for better localized leaks in the CF reference count checker. Now leaks should be flagged close to where they occur. This should implement the desired functionality in <rdar://problem/5879592>, although the diagnostics still need to be improved. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50241 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24Add preliminary support for flagging leaks around when they happen (doesn't ↵Ted Kremenek
work yet). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50237 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24CF reference count checker: handle variadic functions that allocate CF objects.Ted Kremenek
This fixes <rdar://problem/5886141>. Part of this change resulted in creating sparser summaries. I also added some more comments and did some minor code cleanups. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50214 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23Fixed: <rdar://problem/5881148>Ted Kremenek
Problem: In the recently refactored VisitDeref (which processes dereferences), we were incorrectly skipping the node just generated for the subexpression of the dereference. This was a horrible regression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50176 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22Added lval type (and tracking) for StringLiterals.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50109 91177308-0d34-0410-b5e6-96231b3b80d8
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