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2011-09-14[analyzer] After CFG has been linearized, we can have a situation where an ↵Anna Zaks
ExpoledNode has an invalid SourceLocation (which has no correspondence in the source code). This commit is the first step to solve this problem. - 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139703 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14[analyzer] Refactor: Make PathDiagnosticLocation responsible for creating a ↵Anna Zaks
valid object given an ExploadedNode (the same logic can be reused by other checkers). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139672 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Switch LangOptions over to a .def file that describes header of theDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12[analyzer] Fix a failure encountered while analyzing bind (radar://10105448).Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139509 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12[analyzer] Fix a new failure encountered while building Adium exposed as a ↵Anna Zaks
result of r138196(radar://10087620). ObjectiveC property of type int has a value of type ObjCPropRef, which is a Loc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139507 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-10Rename the ARC cast kinds to start with "ARC".John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139466 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-10When converting a block pointer to an Objective-C pointer type, extendJohn McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139451 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-10[analyzer] -analyze-function for ObjectiveC should check if any of the ↵Anna Zaks
methods match the name (not only the first one). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139439 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09Give conversions of block pointers to ObjC pointers a different cast kindJohn McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139352 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Make helpers static, remove unused variables.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139078 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02[analyzer] Remove TransferFuncs.h, then deal with the fallout.Jordy Rose
And with that, TransferFuncs is gone! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139003 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02[analyzer] Move RetainReleaseChecker to the Checkers library and rename it ↵Jordy Rose
to RetainCountChecker...and clean up the file while I'm at it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139002 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02[analyzer] Remove lingering CFRefCount creation, which would have resulted ↵Jordy Rose
in a leak. There's room for improvement here... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139000 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02[analyzer] Fix member initialization order. No functionality change.Jordy Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138999 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02[analyzer] Move the knowledge of whether or not GC is enabled for the ↵Jordy Rose
current analysis from CFRefCount to ExprEngine. 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138998 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Extend the ASTContext constructor to delay the initialization ofDouglas Gregor
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). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01If size was equal to 0, either NULL or a pointer suitable to be passed to Zhongxing Xu
free() is returned by realloc(). Most code expect NULL. And we only need to transfer one final ProgramState. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138937 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31[analyzer] Fix varargs helper to only use POD types even for named ↵Jordy Rose
arguments. Thanks, Joerg. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138875 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29[analyzer] MacOSKeychainAPIChecker: Simplify getSymbolForRegion by using ↵Anna Zaks
existing API. Thanks Jordy. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29Fix: Bug 10798 - [analyzer] Crash when analyzing ICU. (A slight improvement ↵Anna Zaks
on the previous commit.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138762 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29Fix bug 10797: Crash: "cast<Ty>() argument of incompatible type!" assert ↵Anna Zaks
when analyzing ICU. Patch by Jean-Daniel Dupas. Thanks for spotting and fixing! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138757 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-28[analyzer] Introduce a new callback for checkers, printState, to be used for ↵Jordy Rose
debug-printing the contents of a ProgramState. 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138728 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-28[analyzer] Remove the ProgramState argument from ExprEngine::evalBind; we ↵Jordy Rose
were ignoring it anyway. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138720 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-28[analyzer] Eliminate almost all uses of TransferFuncs from ExprEngine.Jordy Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138719 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-28[analyzer] Migrate argument invalidation from CFRefCount to ExprEngine.Jordy Rose
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138718 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27[analyzer] Change the check::RegionChanges callback to include the regions ↵Jordy Rose
explicitly requested for invalidation. 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). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138716 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27[analyzer] Rename current PathDiagnosticClient::HandlePathDiagnostic() to ↵Ted Kremenek
HandlePathDiagnosticImpl(), and slot in new HandlePathDiagnostic() for potentially handling concurrent access to PathDiagnosticClients (in the future). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138713 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27[analyzer] Pull body of loop in AnalysisConsumer::HandleDeclContext() into ↵Ted Kremenek
its own method. No real functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138712 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26[analyzer] Remove a couple of unnecessary returns after llvm_unreachables.Jordy Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138649 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Handle CXXTempObjectRegion in StackAddrEscapeChecker.Jeffrey Yasskin
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138613 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25[analyzer] Move the leak bugs from CFRefCount to RetainReleaseChecker, with ↵Jordy Rose
a level of indirection to handle GC vs. non-GC. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25[analyzer] MacOSKeychainAPIChecker: Cleanup AllocationState structure.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138535 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25[analyzer] Move the easy bug types from CFRefCount to RetainReleaseChecker.Jordy Rose
(These bug types may have just been leaked before...!) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138532 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25[analyzer] MacOSKeychainAPIChecker: Add the custom BugReport visitor(which ↵Anna Zaks
highlights the allocation site) to all the relevant reports within the checker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138531 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25[analyzer] Move the RetainSummaryManager from CFRefCount to ↵Jordy Rose
RetainReleaseChecker. 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138529 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Better fix for the "missing return" error, from Ted.Jordy Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138526 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Silence another incorrect warning ("control reaches end of ↵Jordy Rose
non-void function") git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138510 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Remove experimental FIXME that never actually applied to the code ↵Jordy Rose
in trunk. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138508 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] CFRefReport and friends no longer depend on CFRefCount.Jordy Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138506 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Do not use references in std::pair.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138497 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Unbreak the release buildbot.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138493 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] MacOSKeychainAPIChecker: Provide reacher diagnostic trace by ↵Anna Zaks
pointing to the allocation site when reporting a leak. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138479 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Silence an (incorrect) uninitialized variable warning, caught by ↵Jordy Rose
Cameron. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138477 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Copy GC mode setting from CFRefCount to RetainReleaseChecker in ↵Jordy Rose
preparation for getting rid of CFRefCount. This is a little hacky for now but will get better once we decide the best way to handle this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138476 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Allow checker writes to specify that no region should be ↵Anna Zaks
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.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138474 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Remove unused DoNothingByRef and the special case for ↵Jordy Rose
CFDictionaryCreate. 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138464 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Slightly clean up the fix in 138432, so that it doesn't depend on ↵Jordy Rose
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138462 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Fix a Heisenbug concerning object lifetimes with a hack. ↵Jordy Rose
Hopefully a better fix coming soon. See comment for more details. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138432 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Reapply 138390 "Clean up unused bits of CFRefCount", reverted in ↵Jordy Rose
138405. Ended up unrelated to any problems. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138431 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24[analyzer] Fix potential crasher with RAII. No functionality change. (No ↵Jordy Rose
test because this particular circumstance requires an impossible series of events, but this is future-proofing.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138430 91177308-0d34-0410-b5e6-96231b3b80d8
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