b91ef1b62b
Prototyped support in the BugReporter to emit diagnostics of the form "p now aliases q".
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llvm-svn: 51453
2008-05-22 23:45:19 +00:00
1df2f3a1f5
Expand retain/release checker to consider methods/function calls that cause a
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tracked object to "escape": it's reference count might be incremented by the
called function, thus causing an object's lifetime to extend beyond when the
local reference count is decremented to 0.
This addresses: <rdar://problem/5933215>
llvm-svn: 51433
2008-05-22 17:31:13 +00:00
a4010c698c
Don't use ostringstream (pulling in <sstream>) when creating the dead store diagnostic (simply not needed).
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llvm-svn: 51432
2008-05-22 16:28:24 +00:00
91f035cda7
Improve dead stores diagnostics to include the variable name.
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llvm-svn: 51395
2008-05-21 22:59:16 +00:00
b120ff1b95
Fixed bug in the transfer function for dereferences: the loaded value from EvalLoad should bind to the UnaryOperator*, not its subexpression.
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Added test case to exercise this fix when checking for uses of uninitialized values.
Patch by Zhongxing Xu!
llvm-svn: 51377
2008-05-21 15:48:33 +00:00
652eaab03c
fix warning with gcc 4.1 (ptr to bool convertion)
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llvm-svn: 51324
2008-05-20 17:33:56 +00:00
d727220d1a
Micro-optimization when checking for panic functions.
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llvm-svn: 51214
2008-05-17 00:42:01 +00:00
c8081b4e16
Fix 80 col violation.
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llvm-svn: 51213
2008-05-17 00:40:45 +00:00
0e76583574
Added panic function _XCAssertionFailureHandler.
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llvm-svn: 51212
2008-05-17 00:33:23 +00:00
c812b23ce8
Cache leaks by the allocation site, not the leak location.
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llvm-svn: 51198
2008-05-16 18:33:44 +00:00
590abd363e
Partitioned BugTypeCachedLocation::isCached() into two methods: one that accepts and ExplodedNode, and the other that accepts a ProgramPoint. The default behavior is to cache bug reports by the
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location they occur (the end node). Subclasses can override this behavior by providing a different ProgramPoint.
llvm-svn: 51197
2008-05-16 18:33:14 +00:00
a0055a8ef5
Support StringLiteralVal when comparing LVal types.
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llvm-svn: 50979
2008-05-12 17:41:30 +00:00
acdde6f099
Rename IsPointerType to LVal::IsLValType, and update CFRefCount::EvalSummary 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).
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llvm-svn: 50924
2008-05-09 23:45:33 +00:00
bcdb46830b
Added support for "drain".
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llvm-svn: 50831
2008-05-07 21:17:39 +00:00
f958ec50c0
Expand the CF retain checker to allow the Create/Get rule to apply to any
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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.
llvm-svn: 50829
2008-05-07 20:06:41 +00:00
fcf060fd2f
Flip order of arguments to CStrInStrNoCase.
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llvm-svn: 50824
2008-05-07 18:57:30 +00:00
b6cbf28d82
Use llvm::CStrInCStrNoCase instead of strcasestr, since the latter is not portable.
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Correctly check if the result of CStrInCStrNoCase is NULL to generate summaries; before we were inverting the condition.
llvm-svn: 50822
2008-05-07 18:36:45 +00:00
89bd0fc27d
copy-paste: NS types are not typedefs.
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llvm-svn: 50817
2008-05-07 17:35:41 +00:00
7bf9dc773c
Do not treat **instance** methods "copyWithZone:" and "mutableCopyWithZone:" from NSObject as allocators.
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llvm-svn: 50802
2008-05-07 05:34:45 +00:00
9930bd8c4f
Be less promiscuous with generating summaries for "new", "copy", "create".
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llvm-svn: 50798
2008-05-07 04:25:59 +00:00
08eb30f193
Added auto-summary generation for createXXX, copyXXX, newXXX methods.
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llvm-svn: 50795
2008-05-07 03:45:05 +00:00
aec1811c6c
Don't report leaks for autoreleased objects.
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llvm-svn: 50777
2008-05-06 23:07:13 +00:00
767d0742c7
More comments.
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"#if 0" out some assumptions when auto-generating method summaries.
llvm-svn: 50772
2008-05-06 21:26:51 +00:00
10427bdbb9
Experiment with not converting bug names to lower case.
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llvm-svn: 50753
2008-05-06 18:11:36 +00:00
8bcc1bd3d5
More refactorings in GeneratePathDiagnostic: use ExecutionContinues to display
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"Execution continues..." message, which does a better job at handling corner cases.
llvm-svn: 50751
2008-05-06 18:11:09 +00:00
cb2e636606
Generate "stop" summaries for selectors involving receivers whose type is not NSxxxx.
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llvm-svn: 50721
2008-05-06 15:44:25 +00:00
68f463b88e
Use strncmp correctly.
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llvm-svn: 50715
2008-05-06 06:17:42 +00:00
5f478e9a0a
Make string comparison legible and remove buffer overrun introduced by typo.
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llvm-svn: 50714
2008-05-06 06:09:09 +00:00
2f08fedec1
String comparison cleanups.
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Added test case.
llvm-svn: 50711
2008-05-06 04:28:05 +00:00
041d02201f
Fix logic error in string processing.
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llvm-svn: 50710
2008-05-06 04:21:38 +00:00
c9f4948bba
Remove assertion.
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llvm-svn: 50709
2008-05-06 04:21:10 +00:00
015c3561ad
Use EvalSummary to process message expressions, thereby unifying the checker
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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.
llvm-svn: 50708
2008-05-06 04:20:12 +00:00
821537ecdb
Added receiver effects to EvalSummary.
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llvm-svn: 50700
2008-05-06 02:41:27 +00:00
b0862dca6c
Expand summaries to include "Receiver" effects.
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llvm-svn: 50697
2008-05-06 02:26:56 +00:00
be7c56ed78
Added initialization code to generate initial set of ObjC method summaries (non-instance methods).
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llvm-svn: 50690
2008-05-06 00:38:54 +00:00
0806f910d4
Added code to generate initial set of summaries for instance methods.
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llvm-svn: 50689
2008-05-06 00:30:21 +00:00
3d1e972275
Add summary generation for "initXXX" methods.
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llvm-svn: 50684
2008-05-05 23:55:01 +00:00
046845e842
Make CF retain diagnostics more succinct.
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In a leak's "name", indicate GC or non-GC bugs.
llvm-svn: 50680
2008-05-05 23:16:31 +00:00
f15cd14a3d
Emit dead store warnings for ++ and -- operators.
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llvm-svn: 50679
2008-05-05 23:12:21 +00:00
00daccdd2a
Initial work on refactoring the CFRefCount checker so that it is more
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generic and handles reference counts for NSObjects.
llvm-svn: 50674
2008-05-05 22:11:16 +00:00
627c3074dd
Improve leak diagnostics to not report a leak on the same line where
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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
llvm-svn: 50661
2008-05-05 18:50:19 +00:00
3917b82e85
Improved leak diagnostics.
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llvm-svn: 50657
2008-05-05 17:53:17 +00:00
875db81301
Minor refactorings/cleanups in CF retain checker and added support for NSMakeCollectable.
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Added test case for NSMakeCollectable.
llvm-svn: 50653
2008-05-05 16:51:50 +00:00
db04a9e967
When reporting branch conditions that evaluate to an uninitialized value,
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highlight the most nested subexpression that appears most responsible (giving
the user better diagnostic feedback).
Updated test cases to illustrate this feature.
Implements: <rdar://problem/5880443>
llvm-svn: 50647
2008-05-05 15:56:53 +00:00
a5e2df015a
Rename member variable.
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llvm-svn: 50597
2008-05-02 23:21:21 +00:00
983be7cee6
Improved diagnostics for leaks: now we report which variable was leaked.
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llvm-svn: 50588
2008-05-02 20:53:50 +00:00
789942cfda
When running the reference count checker twice (GC and non-GC mode), only emit
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basic warnings (dead stores, null dereferences) on the first pass.
llvm-svn: 50584
2008-05-02 18:01:49 +00:00
bb7386aff5
Really noreturn on exceptions.
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llvm-svn: 50579
2008-05-02 17:12:56 +00:00
63d76df236
Fix copy-paste bug.
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llvm-svn: 50557
2008-05-01 23:38:35 +00:00
2722f36465
Remove no longer valid assertion.
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llvm-svn: 50556
2008-05-01 23:28:56 +00:00
Ted Kremenek