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* Cast evaluation no longer touch GRState.Zhongxing Xu2010-02-041-3/+2
| | | | llvm-svn: 95290
* Remove stray typo.Ted Kremenek2010-02-041-1/+1
| | | | llvm-svn: 95286
* Now that CastRetrievedVal returns SVal, there is no need to use CastResult.Zhongxing Xu2010-02-041-29/+16
| | | | llvm-svn: 95279
* Fix regression in RegionStore due to recent changes inTed Kremenek2010-02-031-84/+90
| | | | | | | | | RegionStoreManager::InvalidateRegions() by adjusting the worklist to iterate over BindingKeys instead of MemRegions. We also only need to do the actual invalidation work on base regions, and for non-base regions just blow away their bindings. llvm-svn: 95200
* Rework RegionStoreManager's implementation of InvalidateRegions() toTed Kremenek2010-02-031-214/+249
| | | | | | | | | | | | | | | | | | | | | not build a subregion map and instead do a single scan of the store. This is done by building "region clusters" that represent the collection of regions that have the same base region. Invalidating any region in a cluster means that they all should get invalidated. This change brought out a point that Zhongxing mentioned to me offline: the flattened memory binding has issues distinguishing between direct and default bindings. For example, setting the default value for an entire struct is the same as binding to the first element. To address this problem, I moved the binding "tag" (Direct or Default) from BindingVal to BdingKey (and removed BindingVal entirely). This requires us to do double lookups in some cases; and there is still much more cleanup that can be done. This change produced a noticeable speedup when analyzing sqlite3 (a reduction of 4% in running time). llvm-svn: 95193
* Remove RegionStoreSubRegionMap::iterator and ↵Ted Kremenek2010-02-021-26/+28
| | | | | | RegionStoreSubRegionMap::begin_end(). This is a precursor to using DenseSet to represent region sets instead of ImmutableSet. llvm-svn: 95151
* Add missing call to Optional<...>.getValue() that was pointed out by Chandler.Ted Kremenek2010-01-271-1/+1
| | | | llvm-svn: 94678
* Teach RegionStore to handle initialization of incomplete arrays in ↵Ted Kremenek2010-01-261-11/+18
| | | | | | structures using a compound value. Fixes <rdar://problem/7515938>. llvm-svn: 94622
* Split libAnalysis into two libraries: libAnalysis and libChecker.Ted Kremenek2010-01-251-0/+2015
(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
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