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* Split libAnalysis into two libraries: libAnalysis and libChecker.Ted Kremenek2010-01-251-198/+0
| | | | | | | | | | | | | | | | | | | | | | | | | (1) libAnalysis is a generic analysis library that can be used by Sema. It defines the CFG, basic dataflow analysis primitives, and inexpensive flow-sensitive analyses (e.g. LiveVariables). (2) libChecker contains the guts of the static analyzer, incuding the path-sensitive analysis engine and domain-specific checks. Now any clients that want to use the frontend to build their own tools don't need to link in the entire static analyzer. This change exposes various obvious cleanups that can be made to the layout of files and headers in libChecker. More changes pending. :) This change also exposed a layering violation between AnalysisContext and MemRegion. BlockInvocationContext shouldn't explicitly know about BlockDataRegions. For now I've removed the BlockDataRegion* from BlockInvocationContext (removing context-sensitivity; although this wasn't used yet). We need to have a better way to extend BlockInvocationContext (and any LocationContext) to add context-sensitivty. llvm-svn: 94406
* Switch RegionStore over to using <BaseRegion+raw offset> to storeTed Kremenek2010-01-111-15/+13
| | | | | | | | | | | | | | value bindings. Along with a small change to OSAtomicChecker, this resolves <rdar://problem/7527292> and resolves some long-standing issues with how values can be bound to the same physical address by not have the same "key". This change is only a beginning; logically RegionStore needs to better handle loads from addresses where the stored value is larger/smaller/different type than the loaded value. We handle these cases in an approximate fashion now (via CastRetrievedVal and help in SimpleSValuator), but it could be made much smarter. llvm-svn: 93137
* Teach OSAtomicChecker that a FunctionDecl's name isn't always a simple ↵Ted Kremenek2009-12-161-3/+7
| | | | | | IdentifierInfo*. llvm-svn: 91511
* Fix null dereference in OSAtomicChecker and special case SymbolicRegions. ↵Ted Kremenek2009-12-091-4/+13
| | | | | | We still aren't handling them correctly; I've added to failing test cases to test/Analysis/NSString-failed-cases.m that should pass and then be merged in to test/Analysis/NSString.m. llvm-svn: 90993
* Refactor OSAtomic evaluation logic into OSAtomicChecker.Zhongxing Xu2009-12-091-0/+187
llvm-svn: 90968
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