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* [analyzer] Refactoring: lib/Checker -> lib/GR and libclangChecker -> ↵Argyrios Kyrtzidis2010-12-221-986/+0
| | | | | | libclangGRCore llvm-svn: 122421
* [analyzer] Refactoring: include/clang/Checker -> include/clang/GRArgyrios Kyrtzidis2010-12-221-2/+2
| | | | llvm-svn: 122420
* It's kindof silly that ExtQuals has an ASTContext&, and we can use thatJohn McCall2010-12-101-2/+2
| | | | | | | | | | space better. Remove this reference. To make that work, change some APIs (most importantly, getDesugaredType()) to take an ASTContext& if they need to return a QualType. Simultaneously, diminish the need to return a QualType by introducing some useful APIs on SplitQualType, which is just a std::pair<const Type *, Qualifiers>. llvm-svn: 121478
* Merge ValueManager into SValBuilder.Ted Kremenek2010-12-021-14/+14
| | | | llvm-svn: 120696
* Rename CXXObjectRegion to CXXTempObjectRegion.Zhongxing Xu2010-11-261-10/+10
| | | | llvm-svn: 120176
* Regionstore: support derived-to-base cast by creating a CXXBaseObjectRegion.Zhongxing Xu2010-11-261-0/+25
| | | | llvm-svn: 120173
* Add dump method.Zhongxing Xu2010-11-251-0/+4
| | | | llvm-svn: 120141
* Disallow the use of UnknownVal as the index for ElementRegions. UnknownVals ↵Ted Kremenek2010-09-151-1/+1
| | | | | | | | | | | | | | | | | can be used as the index when the value evaluation isn't powerful enough. By creating ElementRegions with UnknownVals as the index, this gives the false impression that they are the same element, when they really aren't. This becomes really problematic when deriving symbols from these regions (e.g., those representing the initial value of the index), since two different indices will get the same symbol for their binding. This fixes an issue with the idempotent operations checker that would cause two indices that are clearly not the same to make it appear as if they always had the same value. Fixes <rdar://problem/8431728>. llvm-svn: 113920
* MemRegion can refer to ASTContext without external help.Zhongxing Xu2010-08-111-4/+3
| | | | llvm-svn: 110784
* Allow offsets to be negative. Out-of-bound cases are checked elsewhere. We Zhongxing Xu2010-08-031-2/+1
| | | | | | shouldn't put restrictions in store manager. llvm-svn: 110106
* Pull the region offset computation logic into a single method.Zhongxing Xu2010-08-031-39/+57
| | | | llvm-svn: 110102
* Improve flat store: MemRegion::getAsOffset() computes a region's offset withinZhongxing Xu2010-08-021-1/+46
| | | | | | | | the top-level object. FlatStore now can bind and retrieve element and field regions. PR7297 is fixed by flat store. llvm-svn: 110020
* Implement dumpToStream() for NonStaticGlobalSpaceRegion and ↵Ted Kremenek2010-07-061-1/+8
| | | | | | StaticGlobalSpaceRegion. llvm-svn: 107731
* Track extents for VLAs.Jordy Rose2010-07-051-2/+3
| | | | llvm-svn: 107603
* Add a new symbol type, SymbolExtent, to represent the extents of memory ↵Jordy Rose2010-07-041-0/+47
| | | | | | | | | | regions that may not be known at compile-time (such as those created by malloc). This replaces the old setExtent/getExtent API on Store, which used the GRState's GDM to store SVals. Also adds a getKnownValue() method to SValuator, which gets the integer value of an SVal if it is known to only have one possible value. There are more places in the code that could be using this, but in general we want to be dealing entirely in SVals, so its usefulness is limited. The only visible functionality change is that extents are now honored for any DeclRegion, such as fields and Objective-C ivars, rather than just variables. This shows up in bounds-checking and cast-size-checking. llvm-svn: 107577
* Fix PR 7475 by enhancing the static analyzer to also invalidate bindings for ↵Ted Kremenek2010-07-011-44/+78
| | | | | | | | | | | non-static global variables when calling a function/method whose impact on global variables we cannot accurately estimate. This change introduces two new MemSpaceRegions that divide up the memory space of globals, and causes RegionStore and BasicStore to consult a binding to the NonStaticGlobalsMemSpaceRegion when lazily determining the value of a global. llvm-svn: 107423
* Discard qualifiers for ElementRegions so that a 'const' doesn't change the ↵Ted Kremenek2010-05-271-1/+1
| | | | | | | | lookup semantics in the symbol store. We may wish to push this down into the StoreManager itself. llvm-svn: 104788
* Add raw_ostream operators to NamedDecl for convenience. Switch over all ↵Benjamin Kramer2010-04-171-3/+3
| | | | | | | | users of getNameAsString on a stream. The next step is to print the name directly into the stream, avoiding a temporary std::string copy. llvm-svn: 101632
* Teach MemRegion::getBaseRegion() about ObjCIvarRegions. We want to treatTed Kremenek2010-04-061-7/+8
| | | | | | | them the same way as fields. This fixes a regression in RegionStore::RemoveDeadbindings() that emerged from going to the cluster-based analysis. llvm-svn: 100570
* Checker: random include cleanup.Benjamin Kramer2010-03-271-2/+2
| | | | llvm-svn: 99731
* For inline-based inter-procedural analysis, we will have multiple stack ↵Zhongxing Xu2010-02-171-9/+16
| | | | | | space regions. Use a dense map to store them. llvm-svn: 96472
* Eliminate the ASTContext parameter from RecordDecl::getDefinition()Douglas Gregor2010-02-111-1/+1
| | | | | | | and CXXRecordDecl::getDefinition(); it's totally unnecessary. No functionality change. llvm-svn: 95836
* Teach RegionStore::InvalidateRegions() to also invalidate static variables ↵Ted Kremenek2010-02-061-1/+1
| | | | | | referenced by blocks. llvm-svn: 95459
* Split libAnalysis into two libraries: libAnalysis and libChecker.Ted Kremenek2010-01-251-0/+799
(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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