Commit Graph

14 Commits

Author SHA1 Message Date
Jordy Rose df28e8ec41 - Allow making ElementRegions with complex offsets (expressions or symbols) for the purpose of bounds-checking.
- Rewrite GRState::AssumeInBound to actually do that checking, and to use the normal constraint path.
- Remove ConstraintManager::AssumeInBound.
- Teach RegionStore and FlatStore to ignore those regions for now.

llvm-svn: 111116
2010-08-16 01:15:17 +00:00
Zhongxing Xu 8de0a3d8c3 MemRegion can refer to ASTContext without external help.
llvm-svn: 110784
2010-08-11 06:10:55 +00:00
Jordy Rose ddec092641 Makes GRState::makeWithStore private, to encourage clients to make store changes through GRState instead of directly accessing the StoreManager. Also adds cover methods for InvalidateRegion(s) and EnterStackFrame to GRState.
This is in preparation for proposed region change notifications. No functionality change.

llvm-svn: 110137
2010-08-03 20:44:35 +00:00
Zhongxing Xu fd91d27630 Improve flat store: MemRegion::getAsOffset() computes a region's offset within
the top-level object. FlatStore now can bind and retrieve element and field
regions.
PR7297 is fixed by flat store.

llvm-svn: 110020
2010-08-02 04:56:14 +00:00
Ted Kremenek bd862711fd Fix PR 7475 by enhancing the static analyzer to also invalidate bindings for 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
2010-07-01 20:16:50 +00:00
Zhongxing Xu b6843f5f35 Analyzer: add support for CXXNewExpr.
llvm-svn: 101771
2010-04-19 11:47:28 +00:00
Ted Kremenek 6e95bfc6a5 Fix crash in StoreManager::CastRegion() when the base region is a type with 0 size.
llvm-svn: 100594
2010-04-07 00:46:49 +00:00
Douglas Gregor 0a5a2216e2 Eliminate the ASTContext parameter from RecordDecl::getDefinition()
and CXXRecordDecl::getDefinition(); it's totally unnecessary. No
functionality change.

llvm-svn: 95836
2010-02-11 01:04:33 +00:00
Zhongxing Xu b02d4a0d11 Unify the implementation of getLValueElement of store managers.
It's more sophisticated than the original one of BasicStore. But it does
matter. 

llvm-svn: 95536
2010-02-08 08:17:02 +00:00
Zhongxing Xu f7f0cdc517 Unify the implementation of getLValueIvar and getLValueField of store managers.
llvm-svn: 95535
2010-02-08 07:58:06 +00:00
Zhongxing Xu 08515a5242 Move common methods to the base StoreManager class.
llvm-svn: 95534
2010-02-08 07:10:35 +00:00
Zhongxing Xu 8ffee4d5f8 ASTContext is now a reference member of StoreManager.
llvm-svn: 95531
2010-02-08 06:00:22 +00:00
Zhongxing Xu 7fcd8acbf8 More GRState* -> Store changes.
llvm-svn: 95360
2010-02-05 05:06:13 +00:00
Ted Kremenek d6b8708643 Split libAnalysis into two libraries: libAnalysis and libChecker.
(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
2010-01-25 04:41:41 +00:00