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2012-03-01Move llvm/ADT/SaveAndRestore.h -> llvm/Support/SaveAndRestore.h.Argyrios Kyrtzidis
Needs llvm update. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151829 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01[analyzer] Diagnostics - do not try to cleanup the path with macros, itAnna Zaks
will be done by the general cleanup later on. A Patch by Ted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151784 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Change if...else if...else if... to a switch.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151775 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29[analyzer] when scanning FIDs in a PathDiagnostic, correctly recurse calls ↵Ted Kremenek
and macros. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151774 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29[analyzer] Malloc: A pointer might escape through CFContainers APIs,Anna Zaks
funopen, setvbuf. Teach the checker and the engine about these APIs to resolve malloc false positives. As I am adding more of these APIs, it is clear that all this should be factored out into a separate callback (for example, region escapes). Malloc, KeyChainAPI and RetainRelease checkers could all use it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151737 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29Remove a recursive visitiation in ExprEngine that is no longer neededErik Verbruggen
because the CFG is fully linearized. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151711 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28[analyzer diagnostics] Refactor filtration for PathDiagnosticConsumers that ↵Ted Kremenek
don't support cross-file diagnostics into a common place. Currently enable this filtration for Plist diagnostics as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28[analyzer diagnostics] start prototyping stripping PathDiagnostics of ↵Ted Kremenek
unnecessary cruft caused by path inlining. This introduces a concept of a "prunable" PathDiagnosticEvent. Currently this is a flag, but we may evolve the concept to make this more dynamically inferred. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151663 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28[analyzer] Stats: Add the stats about remove dead bindings, correct theAnna Zaks
test. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151656 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28[analyzer] Fix Malloc False Positive (PR 12100)Anna Zaks
When allocated buffer is passed to CF/NS..NoCopy functions, the ownership is transfered unless the deallocator argument is set to 'kCFAllocatorNull'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151608 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28[analyzer] teach analyzer about ObjC literals, thus trimming out a false ↵Ted Kremenek
positive with the malloc() checker involving comparing literal addresses to nil. Fixes <rdar://problem/10579586> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151602 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-27[analyzer] Don't generate an explicit ExplodedNode for StringLiterals; have ↵Ted Kremenek
the SVal lazily generated from Environment::getSVal(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151589 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-27Move "clang/Analysis/Support/SaveAndRestore.h" to "llvm/ADT/SaveAndRestore.h"Argyrios Kyrtzidis
to make it more widely available. Depends on llvm commit r151564 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151566 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24[analyzer] Run remove dead bindings before each call.Anna Zaks
This ensures that we report the bugs associated with symbols going out of scope in the correct function context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151369 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24[analyzer] We were silently stopping exploring the path afterAnna Zaks
visiting 'return;' statement! This most likely caused us to skip a bunch of code when analyzing with inlining. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151368 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Implement a new type trait __is_trivially_constructible(T, Args...)Douglas Gregor
that provides the behavior of the C++11 library trait std::is_trivially_constructible<T, Args...>, which can't be implemented purely as a library. Since __is_trivially_constructible can have zero or more arguments, I needed to add Yet Another Type Trait Expression Class, this one handling arbitrary arguments. The next step will be to migrate UnaryTypeTrait and BinaryTypeTrait over to this new, more general TypeTrait class. Fixes the Clang side of <rdar://problem/10895483> / PR12038. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151352 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Make PathDiagnosticBuilder sensitive to varying LocationContexts, thus ↵Ted Kremenek
fixing a bug in the inlining diagnostics where the wrong location could be used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151349 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Reapply r151317, but when computing the PathDiagnostic profile and size keep ↵Ted Kremenek
into account the nested structure. Also fix a problem with how inlining impacted Plist diagnostics, and adjust some ranges in the Plist output due to richer information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151346 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Revert r151317 - Rework PathDiagnostics creation.. - to appease buildbots.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151338 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Rework PathDiagnostic creation so that call stacks are captured by a nested ↵Ted Kremenek
PathDiagnosticCallPiece. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151317 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-23[analyzer] Malloc: unique leak reports by allocation site.Anna Zaks
When we find two leak reports with the same allocation site, report only one of them. Provide a helper method to BugReporter to facilitate this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151287 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-23[analyzer] Invalidate the region passed to pthread_setspecific() call.Anna Zaks
Make this call an exception in ExprEngine::invalidateArguments: 'int pthread_setspecific(ptheread_key k, const void *)' stores a value into thread local storage. The value can later be retrieved with 'void *ptheread_getspecific(pthread_key)'. So even thought the parameter is 'const void *', the region escapes through the call. (Here we just blacklist the call in the ExprEngine's default logic. Another option would be to add a checker which evaluates the call and triggers the call to invalidate regions.) Teach the Malloc Checker, which treats all system calls as safe about the API. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151220 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Generate an AST for the conversion from a lambda closure type to aDouglas Gregor
block pointer that returns a block literal which captures (by copy) the lambda closure itself. Some aspects of the block literal are left unspecified, namely the capture variable (which doesn't actually exist) and the body (which will be filled in by IRgen because it can't be written as an AST). Because we're switching to this model, this patch also eliminates tracking the copy-initialization expression for the block capture of the conversion function, since that information is now embedded in the synthesized block literal. -1 side tables FTW. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Have ScanReachableSymbols reported reachable regions. Fixes a false ↵Ted Kremenek
positive with nested array literals. <rdar://problem/10686586> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151012 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Basic: import IntrusiveRefCntPtr<> into clang namespaceDylan Noblesmith
The class name is long enough without the llvm:: added. Also bring in RefCountedBase and RefCountedBaseVPTR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150958 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-18Teach analyzer that blocks with no captures are globals. Fixes ↵Ted Kremenek
<rdar://problem/10348049>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150896 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-18Adopt ExprEngine and checkers to ObjC property refactoring. Everything was ↵Ted Kremenek
working, but now diagnostics are aware of message expressions implied by uses of properties. Fixes <rdar://problem/9241180>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150888 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17Have conjured symbols depend on LocationContext, to add context sensitivity ↵Ted Kremenek
for functions called more than once. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150849 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-17[analyzer] Generalize function name checking in CString checker.Anna Zaks
(Ex: It was not treating __inline_strcpy as strcpy. Will add tests that rely on this later on.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150845 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Add checker visitation hooks in ExprEngine::Visit() for common no-op ↵Ted Kremenek
expressions. To be used later. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Revert "Move ExplodedNode reclaimation out of ExprEngine and into ↵Ted Kremenek
CoreEngine. Also have it based on adding predecessors/successors, not node allocation. No measurable performance change." git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150722 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Move ExplodedNode reclaimation out of ExprEngine and into CoreEngine. Also ↵Ted Kremenek
have it based on adding predecessors/successors, not node allocation. No measurable performance change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150720 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Minor cleanup to node data structures in ExplodedGraph. No functionality ↵Ted Kremenek
change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150719 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Revert "Revert "Make CXXNewExpr contain only a single initialier, and not ↵Sebastian Redl
hold the used constructor itself."" This reintroduces commit r150682 with a fix for the Bullet benchmark crash. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150685 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Revert "Make CXXNewExpr contain only a single initialier, and not hold the ↵Sebastian Redl
used constructor itself." It leads to a compiler crash in the Bullet benchmark. This reverts commit r12014. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Make CXXNewExpr contain only a single initialier, and not hold the used ↵Sebastian Redl
constructor itself. Holding the constructor directly makes no sense when list-initialized arrays come into play. The constructor is now held in a CXXConstructExpr, if construction is what is done. The new design can also distinguish properly between list-initialization and direct-initialization, as well as implicit default-initialization constructors and explicit value-initialization constructors. Finally, doing it this way removes redundance from the AST because CXXNewExpr doesn't try to handle both the allocation and the initialization responsibilities. This breaks the static analysis of new expressions. I've filed PR12014 to track this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150682 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16[analyzer] Diagnostics: Ensure that the default end of diagnostic pathAnna Zaks
piece can always be generated. The default end of diagnostic path piece was failing to generate on a BlockEdge that was outgoing from a basic block without a terminator, resulting in a very simple diagnostic being rendered (ex: no path highlighting or custom visitors). Reuse another function, which is essentially doing the same thing and correct it not to fail when a block has no terminator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150659 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Split reinterpret_casts of member pointers out from CK_BitCast; thisJohn McCall
is general goodness because representations of member pointers are not always equivalent across member pointer types on all ABIs (even though this isn't really standard-endorsed). Take advantage of the new information to teach IR-generation how to do these reinterprets in constant initializers. Make sure this works when intermingled with hierarchy conversions (although this is not part of our motivating use case). Doing this in the constant-evaluator would probably have been better, but that would require a *lot* of extra structure in the representation of constant member pointers: you'd really have to track an arbitrary chain of hierarchy conversions and reinterpretations in order to get this right. Ultimately, this seems less complex. I also wasn't quite sure how to extend the constant evaluator to handle foldings that we don't actually want to treat as extended constant expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150551 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14[analyzer] Make Malloc Checker optimistic in presence of inlining.Anna Zaks
(In response of Ted's review of r150112.) This moves the logic which checked if a symbol escapes through a parameter to invalidateRegionCallback (instead of post CallExpr visit.) To accommodate the change, added a CallOrObjCMessage parameter to checkRegionChanges callback. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150513 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Remove recusive expression visitation in ↵Ted Kremenek
ExprEngine::VisitIncrementDecrementOperator(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150511 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Remove recursive visitation in ExprEngine for UO_Not, UO_Minus, UO_LNot.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150509 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Remove recursive visitation in ExprEngine for UO_Deref, UO_AddrOf, and ↵Ted Kremenek
UO_Extension. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150506 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Remove ExprEngine recursive visitation of unary UO_Imag operation.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150505 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Further remove some recursive visitiation in ExprEngine that is no longer ↵Ted Kremenek
needed because the CFG is fully linearized. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150504 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09[analyzer] Proactively avoid inlining vararg functions and blocks until we ↵Ted Kremenek
properly support them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150207 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Remove explicit delete of PathDiagnosticMacroPiece, as it is now reference ↵Ted Kremenek
counted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150110 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Change PathDiagnosticPieces to be reference counted (simplifying their ↵Ted Kremenek
management), and introduce 'PathPieces' as a common container for PathDiagnosticPieces. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150054 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Refactor pieces of PathDiagnostic into its own data structure. No ↵Ted Kremenek
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150053 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Revert my patches which removed Diagnostic.h includes by moving some ↵Benjamin Kramer
operator overloads out of line. This seems to negatively affect compile time onsome ObjC tests (which use a lot of partial diagnostics I assume). I have to come up with a way to keep them inline without including Diagnostic.h everywhere. Now adding a new diagnostic requires a full rebuild of e.g. the static analyzer which doesn't even use those diagnostics. This reverts commit 6496bd10dc3a6d5e3266348f08b6e35f8184bc99. This reverts commit 7af19b817ba964ac560b50c1ed6183235f699789. This reverts commit fdd15602a42bbe26185978ef1e17019f6d969aa7. This reverts commit 00bd44d5677783527d7517c1ffe45e4d75a0f56f. This reverts commit ef9b60ffed980864a8db26ad30344be429e58ff5. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150006 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Print NamedDecls directly to a raw_ostream where possible.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149982 91177308-0d34-0410-b5e6-96231b3b80d8
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