9db35a8750
ST->scanReachableSymbols() is creating a SubRegionMap (SRM) on every call since one SRM is created in each ScanReachableSymbols instance. Creating the object just once and calling only scan inside the loop gives ~ 14% speed up of the StaticAnalyzer run (Release+Asserts).
...
Pull out the declaration of the ScanReachableSymbols so that it can be used directly. Document ProgramState::scanReachableSymbols() methods.
llvm-svn: 140323
2011-09-22 18:10:41 +00:00
15ca5e7a21
[analyzer] Fix a bug where PathDiagnosticLocation did not generate a valid range and add asserts to check validity of locations early on. Ignore invalid ranges in PathDiagnosticPiece (they could be added by checker writers).
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Addresses radar://10124836 and radar://radar10102244.
llvm-svn: 140218
2011-09-21 00:35:58 +00:00
d70da08160
[analyzer] Refactor PathDiagnosticLocation: Remove SourceRange member from PathDiagnosticLocation - FullSourceLoc Loc and PathDiagnosticRange Range are sufficient.
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llvm-svn: 140206
2011-09-20 23:27:32 +00:00
6800ab437c
[analyzer] Remove dead code. (This code is trying to implement the idea that PathDiagnosticClient could implement DiagnosticClient and has been dead for a while).
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llvm-svn: 140198
2011-09-20 22:30:48 +00:00
c29bed3989
[analyzer] Refactor PathDiagnosticLocation: Make PathDiagnosticLocation(SourceLocation...) private. Most of the effort here goes to making BugReport refer to a PathDiagnosticLocation instead of FullSourceLocation.
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(Another step closer to the goal of having Diagnostics which can recover from invalid SourceLocations.)
llvm-svn: 140182
2011-09-20 21:38:35 +00:00
b2dfc2b7be
[analyzer] Refactor PathDiagnosticLocation: Use the pre-computed Range and Location for profile.
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llvm-svn: 140180
2011-09-20 21:25:00 +00:00
83128bc101
[analyzer] Refactor PathDiagnosticLocation: Use PointerUnion of LocationContext and AnalysisContext to support creation of PathDiagnosticLocations for checkers which no context sensitivity.
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llvm-svn: 140162
2011-09-20 18:23:52 +00:00
de03d72a7b
[analyzer] Refactor PathDiagnosticLocation: Lazily query LocationContext for a ParentMap as needed.
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llvm-svn: 140147
2011-09-20 16:37:36 +00:00
22fec1c4d9
[analyzer] Remove LocationContext and a dependency from PathDiagnosticLoaction.
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llvm-svn: 140146
2011-09-20 16:23:37 +00:00
745486a5da
[analyzer] Refactor PathDiagnosticLocation: Pre-compute Range and Location with gen methods on object creation instead of computing on demand. This would allow to remove dependency on the other members which help with construction and might not even be valid at later stages (to be removed later on).
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llvm-svn: 140131
2011-09-20 01:51:40 +00:00
de8c5eddb9
[analyzer] Use more create methods in the PathDiagnostic, cleanup.
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llvm-svn: 140130
2011-09-20 01:38:47 +00:00
6e76384c82
[analyzer] BugReport has a profile method, so reuse it here.
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llvm-svn: 140100
2011-09-19 23:44:31 +00:00
e6e67deeed
Rename SourceLocation::getFileLocWithOffset -> getLocWithOffset.
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It already works (and is useful with) macro locs as well.
llvm-svn: 140057
2011-09-19 20:40:19 +00:00
efd182d992
[analyzer] Refactor: make PathDiagnosticLocation responsible for validation of SourceLocations (commit 5 of ?):
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- Get rid of PathDiagnosticLocation(SourceRange r,..) constructor by providing a bunch of create methods.
- The PathDiagnosticLocation(SourceLocation L,..), which is used by crate methods, will eventually become private.
- Test difference is in the case when the report starts at the beginning of the function. We used to represent that point as a range of the very first token in the first statement. Now, it's just a single location representing the first character of the first statement.
llvm-svn: 139932
2011-09-16 19:18:30 +00:00
207c68012a
[analyzer] Refactor: make PathDiagnosticLocation responsible for validation of SourceLocations (commit 4 of ?):
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- The closing brace is always a single location, not a range.
- The test case previously had a location key 57:1 followed by a range [57:1 - 57:1].
llvm-svn: 139832
2011-09-15 20:06:34 +00:00
921f04924f
[analyzer] Refactor: make PathDiagnosticLocation responsible for validation of SourceLocations (commit 2 of ?):
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- Fix a fixme and move the logic of creating a PathDiagnosticLocation corresponding to a ProgramPoint into a PathDiagnosticLocation constructor.
- Rename PathDiagnosticLocation::create to differentiate from the added constructor.
llvm-svn: 139825
2011-09-15 18:56:07 +00:00
3a769bd996
[analyzer] Refactor: make PathDiagnosticLocation responsible for validation of SourceLocations (commit 2 of ?):
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- Modify all PathDiagnosticLocation constructors that take Stmt to also requre LocationContext.
- Add a constructor which should be used in case there is no valid statement/location (it will grab the location of the enclosing function).
llvm-svn: 139763
2011-09-15 01:08:34 +00:00
615e3a69c3
[analyzer] After CFG has been linearized, we can have a situation where an ExpoledNode has an invalid SourceLocation (which has no correspondence in the source code). This commit is the first step to solve this problem.
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- It adds LocationContext to the PathDiagnosticLocation object and uses it to lookup the enclosing statement with a valid location.
- So far, the LocationContext is only available when the object is constructed from the ExplodedNode.
- Already found some subtle bugs(in plist-output-alternate.m) where the intermediate diagnostic steps were not previously shown.
llvm-svn: 139703
2011-09-14 17:48:01 +00:00
2c65eea947
[analyzer] Refactor: Make PathDiagnosticLocation responsible for creating a valid object given an ExploadedNode (the same logic can be reused by other checkers).
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llvm-svn: 139672
2011-09-14 00:25:17 +00:00
79a91418bd
Switch LangOptions over to a .def file that describes header of the
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language options. Use that .def file to declare the LangOptions class
and initialize all of its members, eliminating a source of annoying
initialization bugs.
AST serialization changes are next up.
llvm-svn: 139605
2011-09-13 17:21:33 +00:00
79301b16f3
[analyzer] Fix a failure encountered while analyzing bind (radar://10105448).
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llvm-svn: 139509
2011-09-12 18:07:30 +00:00
295208d744
[analyzer] Fix a new failure encountered while building Adium exposed as a result of r138196(radar://10087620). ObjectiveC property of type int has a value of type ObjCPropRef, which is a Loc.
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llvm-svn: 139507
2011-09-12 17:56:08 +00:00
2d637d2e79
Rename the ARC cast kinds to start with "ARC".
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llvm-svn: 139466
2011-09-10 06:18:15 +00:00
cd78e805e9
When converting a block pointer to an Objective-C pointer type, extend
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the lifetime of the block by copying it to the heap, or else we'll get
a dangling reference because the code working with the non-block-typed
object will not know it needs to copy.
There is some danger here, e.g. with assigning a block literal to an
unsafe variable, but, well, it's an unsafe variable.
llvm-svn: 139451
2011-09-10 01:16:55 +00:00
dfbea6b244
[analyzer] -analyze-function for ObjectiveC should check if any of the methods match the name (not only the first one).
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llvm-svn: 139439
2011-09-10 00:12:23 +00:00
9320b87cff
Give conversions of block pointers to ObjC pointers a different cast kind
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than conversions of C pointers to ObjC pointers. In order to ensure that
we've caught every case, add asserts to CastExpr that strictly determine
which cast kind is used for which kind of bit cast.
llvm-svn: 139352
2011-09-09 05:25:32 +00:00
2667afa980
Make helpers static, remove unused variables.
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llvm-svn: 139078
2011-09-03 03:30:59 +00:00
087611ed81
[analyzer] Remove TransferFuncs.h, then deal with the fallout.
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And with that, TransferFuncs is gone!
llvm-svn: 139003
2011-09-02 08:02:59 +00:00
75e680eae3
[analyzer] Move RetainReleaseChecker to the Checkers library and rename it to RetainCountChecker...and clean up the file while I'm at it.
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llvm-svn: 139002
2011-09-02 06:44:22 +00:00
dd7a654b1a
[analyzer] Remove lingering CFRefCount creation, which would have resulted in a leak. There's room for improvement here...
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llvm-svn: 139000
2011-09-02 06:29:27 +00:00
a87a2775fa
[analyzer] Fix member initialization order. No functionality change.
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llvm-svn: 138999
2011-09-02 06:21:26 +00:00
c49ec53e29
[analyzer] Move the knowledge of whether or not GC is enabled for the current analysis from CFRefCount to ExprEngine.
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Remove TransferFuncs from ExprEngine and AnalysisConsumer.
Demote RetainReleaseChecker to a regular checker, and give it the name osx.cocoa.RetainCount (class name change coming shortly). Update tests accordingly.
llvm-svn: 138998
2011-09-02 05:55:19 +00:00
e8bbc12152
Extend the ASTContext constructor to delay the initialization of
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builtin types (When requested). This is another step toward making
ASTUnit build the ASTContext as needed when loading an AST file,
rather than doing so after the fact. No actual functionality change (yet).
llvm-svn: 138985
2011-09-02 00:18:52 +00:00
bfb8e2fe6e
If size was equal to 0, either NULL or a pointer suitable to be passed to
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free() is returned by realloc(). Most code expect NULL.
And we only need to transfer one final ProgramState.
llvm-svn: 138937
2011-09-01 04:53:59 +00:00
973a8886f6
[analyzer] Fix varargs helper to only use POD types even for named arguments. Thanks, Joerg.
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llvm-svn: 138875
2011-08-31 18:33:45 +00:00
50dd696339
[analyzer] MacOSKeychainAPIChecker: Simplify getSymbolForRegion by using existing API. Thanks Jordy.
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llvm-svn: 138765
2011-08-29 21:10:00 +00:00
814adf7752
Fix: Bug 10798 - [analyzer] Crash when analyzing ICU. (A slight improvement on the previous commit.)
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llvm-svn: 138762
2011-08-29 20:43:37 +00:00
cda129eb1c
Fix bug 10797: Crash: "cast<Ty>() argument of incompatible type!" assert when analyzing ICU.
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Patch by Jean-Daniel Dupas. Thanks for spotting and fixing!
llvm-svn: 138757
2011-08-29 20:05:54 +00:00
58a20d31b7
[analyzer] Introduce a new callback for checkers, printState, to be used for debug-printing the contents of a ProgramState.
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Unlike the other callbacks, this one is a simple virtual method, since it is only to be used for debugging.
This new callback replaces the old ProgramState::Printer interface, and allows us to move the printing of refcount bindings from CFRefCount to RetainReleaseChecker.
llvm-svn: 138728
2011-08-28 19:11:56 +00:00
e9ff97b850
[analyzer] Remove the ProgramState argument from ExprEngine::evalBind; we were ignoring it anyway. No functionality change.
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llvm-svn: 138720
2011-08-28 06:02:28 +00:00
d26e9e7f7c
[analyzer] Eliminate almost all uses of TransferFuncs from ExprEngine.
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llvm-svn: 138719
2011-08-28 05:54:23 +00:00
d188d66e69
[analyzer] Migrate argument invalidation from CFRefCount to ExprEngine.
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This is a common path for function and C++ method calls, Objective-C messages and property accesses, and C++ construct-exprs.
As support, add message receiver accessors to ObjCMessage and CallOrObjCMessage.
llvm-svn: 138718
2011-08-28 05:16:28 +00:00
1fad663126
[analyzer] Change the check::RegionChanges callback to include the regions explicitly requested for invalidation.
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Also, allow CallOrObjCMessage to wrap a CXXConstructExpr as well.
Finally, this allows us to remove the clunky whitelisting system from CFRefCount/RetainReleaseChecker. Slight regression due to CXXNewExprs not yet being handled in post-statement callbacks (PR forthcoming).
llvm-svn: 138716
2011-08-27 22:51:26 +00:00
996bfab499
[analyzer] Rename current PathDiagnosticClient::HandlePathDiagnostic() to HandlePathDiagnosticImpl(), and slot in new HandlePathDiagnostic() for potentially handling concurrent access to PathDiagnosticClients (in the future).
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llvm-svn: 138713
2011-08-27 21:39:14 +00:00
60120fb1b1
[analyzer] Pull body of loop in AnalysisConsumer::HandleDeclContext() into its own method. No real functionality change.
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llvm-svn: 138712
2011-08-27 21:28:09 +00:00
256a6dd13b
[analyzer] Remove a couple of unnecessary returns after llvm_unreachables.
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llvm-svn: 138649
2011-08-26 20:32:01 +00:00
0e9cdbbb06
Handle CXXTempObjectRegion in StackAddrEscapeChecker.
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Also convert stack-addr-ps.cpp to use the analyzer instead of just Sema, now
that it doesn't crash, and extract the stack-block test into another file since
it errors, and that prevents the analyzer from running.
llvm-svn: 138613
2011-08-26 00:41:31 +00:00
15484daafe
[analyzer] Move the leak bugs from CFRefCount to RetainReleaseChecker, with a level of indirection to handle GC vs. non-GC.
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llvm-svn: 138538
2011-08-25 01:14:38 +00:00
5be8a4d104
[analyzer] MacOSKeychainAPIChecker: Cleanup AllocationState structure.
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llvm-svn: 138535
2011-08-25 00:59:06 +00:00
4ba0ba42e2
[analyzer] Move the easy bug types from CFRefCount to RetainReleaseChecker.
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(These bug types may have just been leaked before...!)
llvm-svn: 138532
2011-08-25 00:34:03 +00:00
85913db489
[analyzer] MacOSKeychainAPIChecker: Add the custom BugReport visitor(which highlights the allocation site) to all the relevant reports within the checker.
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llvm-svn: 138531
2011-08-25 00:32:42 +00:00
8b289a2cbd
[analyzer] Move the RetainSummaryManager from CFRefCount to RetainReleaseChecker.
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Because Checkers live for an entire translation unit, this persists summary caches across multiple code bodies and avoids repeated initialization (but probably at the cost of memory). This removes the last references from RetainReleaseChecker to CFRefCount.
llvm-svn: 138529
2011-08-25 00:10:37 +00:00
a4c41bb875
[analyzer] Better fix for the "missing return" error, from Ted.
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llvm-svn: 138526
2011-08-24 23:41:46 +00:00
34a83e911f
[analyzer] Silence another incorrect warning ("control reaches end of non-void function")
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llvm-svn: 138510
2011-08-24 22:58:49 +00:00
763982b82d
[analyzer] Remove experimental FIXME that never actually applied to the code in trunk.
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llvm-svn: 138508
2011-08-24 22:45:12 +00:00
184bd1430b
[analyzer] CFRefReport and friends no longer depend on CFRefCount.
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llvm-svn: 138506
2011-08-24 22:39:09 +00:00
f880cff209
[analyzer] Do not use references in std::pair.
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llvm-svn: 138497
2011-08-24 21:58:55 +00:00
0d67579497
[analyzer] Unbreak the release buildbot.
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llvm-svn: 138493
2011-08-24 21:40:10 +00:00
be460898bb
[analyzer] MacOSKeychainAPIChecker: Provide reacher diagnostic trace by pointing to the allocation site when reporting a leak.
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llvm-svn: 138479
2011-08-24 20:52:46 +00:00
9ff0299935
[analyzer] Silence an (incorrect) uninitialized variable warning, caught by Cameron.
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llvm-svn: 138477
2011-08-24 20:38:42 +00:00
38eea65acd
[analyzer] Copy GC mode setting from CFRefCount to RetainReleaseChecker in preparation for getting rid of CFRefCount.
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This is a little hacky for now but will get better once we decide the best way to handle this.
llvm-svn: 138476
2011-08-24 20:33:55 +00:00
45aa208554
[analyzer] Allow checker writes to specify that no region should be accosiated with the report. (Useful when we report an error on endOfPath or deadSymbols, when the range of the last expression might have nothing to do with the error.)
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llvm-svn: 138474
2011-08-24 20:31:06 +00:00
e8743a7499
[analyzer] Remove unused DoNothingByRef and the special case for CFDictionaryCreate.
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This is a very small regression (actually introduced in r138309) because it won't catch leaks of objects passed by reference to CFDictionaryCreate (they're considered to have escaped and are ignored). If this is important we can put in a specific eval::Call to restore the functionality.
llvm-svn: 138464
2011-08-24 19:10:50 +00:00
5df640dc33
[analyzer] Slightly clean up the fix in 138432, so that it doesn't depend on the relative ordering of path-sensitive and path-insensitive checks. Still not ideal, but I think a real fix would require infrastructure that doesn't exist yet.
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llvm-svn: 138462
2011-08-24 18:56:32 +00:00
95589f13ff
[analyzer] Fix a Heisenbug concerning object lifetimes with a hack. Hopefully a better fix coming soon. See comment for more details.
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llvm-svn: 138432
2011-08-24 09:27:24 +00:00
58428b914d
[analyzer] Reapply 138390 "Clean up unused bits of CFRefCount", reverted in 138405. Ended up unrelated to any problems.
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llvm-svn: 138431
2011-08-24 09:22:31 +00:00
14de7c5a88
[analyzer] Fix potential crasher with RAII. No functionality change. (No test because this particular circumstance requires an impossible series of events, but this is future-proofing.)
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llvm-svn: 138430
2011-08-24 09:02:37 +00:00
7a53498f20
[analyzer] Reapply 138382 and 138388 (reverted in 138419 and 138420). The issue seems to have been with the uninitialized variable fixed in 138424; a fix for another Heisencrasher coming soon.
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llvm-svn: 138426
2011-08-24 05:47:39 +00:00
03a8f9e578
[analyzer] Correctly initialize a variable and hopefully fix crashes.
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llvm-svn: 138424
2011-08-24 04:48:19 +00:00
aa8b6a5cf4
Revert "[analyzer] Cleanup: Move temporary declarations of CFRefCount variables closer to their uses. No functionality change."
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This reverts commit d02b4af7bd6ca4a743c7074d64e205d718aa221d.
llvm-svn: 138420
2011-08-24 00:39:51 +00:00
1825e7a260
Revert "[analyzer] Make CFRefBug and CFRefReportVisitor not dependent on CFRefCount. Unfortunately, CFRefReport still is. No functionality change."
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This reverts commit e3fb7e428b7ba0d5d902dfe3f165d70e09b03a15.
llvm-svn: 138419
2011-08-24 00:39:48 +00:00
0897a23517
[analyzer] MacOSKeychainAPIChecker: Add reasoning about functions which MIGHT deallocate the memory region allocated with SecKeychain APIs. Specifically, when the buffer is passed to CFStringCreateWithBytesNoCopy along with a custom deallocator, which might potentially correctly release the memory.
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llvm-svn: 138417
2011-08-24 00:06:27 +00:00
f9e9c4e9bc
[analyzer] MacOSKeychainAPIChecker: Retrieve the memory region which we are tracking even when it's no longer a SymbolicRegion, for example, when it is cast to char*.
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llvm-svn: 138415
2011-08-23 23:56:12 +00:00
bb167011e3
Move creation of the deallocation mismatch report into a separate function for future reuse.
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llvm-svn: 138414
2011-08-23 23:47:36 +00:00
adfb445466
Constify the result of CFGStmt::getStmt().
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llvm-svn: 138408
2011-08-23 23:05:04 +00:00
fba570c9d8
Revert "[analyzer] Clean up unused bits of CFRefCount."
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This reverts commit 6886a92640f5bffc972f67c0a1f302d6c6e7c322.
llvm-svn: 138405
2011-08-23 22:38:04 +00:00
5aa9b1dd3f
[analyzer] Clean up unused bits of CFRefCount.
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llvm-svn: 138390
2011-08-23 21:51:36 +00:00
908426aae4
[analyzer] Make CFRefBug and CFRefReportVisitor not dependent on CFRefCount. Unfortunately, CFRefReport still is. No functionality change.
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llvm-svn: 138388
2011-08-23 21:47:17 +00:00
fd13f6f56a
[analyzer] Cleanup: Move temporary declarations of CFRefCount variables closer to their uses. No functionality change.
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llvm-svn: 138382
2011-08-23 21:06:32 +00:00
20d4e68195
[analyzer] Move function retain-count effect summary log from CFRefCount to RetainReleaseChecker, and then explicitly provide the summary log when creating CFRefReports. No functionality change.
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llvm-svn: 138374
2011-08-23 20:55:48 +00:00
ee9848e20d
Fix regression in -Wuninitialized involving VLAs. It turns out that we were modeling sizeof(VLAs)
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incorrectly in the CFG, and also the static analyzer. This patch regresses the analyzer a bit, but
that needs to be followed up with a better solution.
Fixes <rdar://problem/10008112>.
llvm-svn: 138372
2011-08-23 20:30:50 +00:00
bf77e51fa1
[analyzer] Move helper method Update from CFRefCount to RetainReleaseChecker. No functionality change.
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llvm-svn: 138370
2011-08-23 20:27:16 +00:00
6763e38736
[analyzer] Move helper method handleAutoreleaseCounts from CFRefCount to RetainReleaseChecker. No functionality change.
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llvm-svn: 138365
2011-08-23 20:07:14 +00:00
298cc4d907
[analyzer] Move ReturnStmt retain-count analysis from CFRefCount to RetainReleaseChecker. Tweak CFRefReport to reflect that fact that ReturnStmt checks are pre-statement, not post-statement. No intended functionality change.
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llvm-svn: 138358
2011-08-23 19:43:16 +00:00
7861276f47
[analyzer] Move symbol death leak analysis from CFRefCount to RetainReleaseChecker.
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llvm-svn: 138353
2011-08-23 19:01:07 +00:00
212e459164
[analyzer] Only allocate retain summaries for interesting functions/messages. This is a minor saving of memory but doesn't seem to cost any performance.
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llvm-svn: 138320
2011-08-23 04:27:15 +00:00
f5b0234992
[analyzer] Rename CFRefCount's evalSummary method to evalCallOrMessage, since it no longer, uh, evaluates call summaries.
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llvm-svn: 138313
2011-08-23 00:03:01 +00:00
5b31d7acf7
[analyzer] Migrate the handling of retain-count-related RetEffects and ArgEffects from CFRefCount to RetainReleaseChecker. No intended functionality change.
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llvm-svn: 138309
2011-08-22 23:48:23 +00:00
bd7972b49e
[analyzer] MacOSKeychainAPIChecker: Users of KeyChain API often use free() to deallocate the password. Catch this error explicitly and generate the error message at the place where free() is called.
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llvm-svn: 138296
2011-08-22 23:18:12 +00:00
76c3fb6a51
Static Analyzer Diagnostics: Allow checkers to add ExtraDescriptiveText, now renamed into ExtraText, to the diagnostic without subclassing BugReport.
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llvm-svn: 138272
2011-08-22 20:31:28 +00:00
752de1443f
Clean up the CFRefBugReport - remove the members, which got moved to the CFRefReportVisitors.
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llvm-svn: 138259
2011-08-22 18:54:07 +00:00
898a148d28
[analyzer] Migrate the aliasing effects of CFRetain and CFMakeCollectable from CFRefCount to RetainReleaseChecker. No intended functionality change.
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llvm-svn: 138223
2011-08-21 21:58:18 +00:00
6582dde545
[analyzer] Remove FIXME; Ted reminded me that -init is not guaranteed to return its receiver and pretending that it does won't actually buy us anything. (Comment change only.)
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llvm-svn: 138221
2011-08-21 21:04:38 +00:00
3f7f7568f2
[analyzer] Migrate return value handling from CFRefCount to ExprEngine. This seems to result in a minor performance hit, but I think that will go away again once we eliminate TransferFuncs from function calls entirely.
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llvm-svn: 138220
2011-08-21 19:41:36 +00:00
82c673de33
[analyzer] Replace calls to getNameAsString() with StringRef equivalents.
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llvm-svn: 138215
2011-08-21 05:25:15 +00:00
3cca223a2a
Fix compile on platforms that don't implicitly include stdarg.h here.
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llvm-svn: 138214
2011-08-20 21:50:41 +00:00
a8f99ba749
[analyzer] RetainReleaseChecker always wants region change updates. There's no need for a flag, at least not right now.
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llvm-svn: 138212
2011-08-20 21:17:59 +00:00
5c252ef7b1
Fix indentation.
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llvm-svn: 138211
2011-08-20 21:16:58 +00:00
5a3c9ff3a3
[analyzer] Move handling of hardcoded noreturn ("panic") methods from CFRefCount to NoReturnFunctionChecker. No functionality change intended.
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llvm-svn: 138210
2011-08-20 20:55:40 +00:00
60d2ec5765
[analyzer] Handle reads of ObjCPropertyRefExprs implicitly in Environment. No need to bind an explicit value and create a new node.
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llvm-svn: 138196
2011-08-20 06:23:25 +00:00
Anna Zaks