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23 Commits

Author SHA1 Message Date
Zhongxing Xu
628ae879ea Rename: AddDecl => BindDecl 
BindDecl better describes what the function does:
  - Bind the VarDecl to its memory region
  - Bind the memory region to some initial value.

llvm-svn: 58359
 2008-10-29 02:34:02 +00:00
Ted Kremenek
bf26368255 Added preliminary support for CompoundLiterals in the static analyzer: 
- GRExprEngine::VisitCompoundLiteral...
   (1) visits the initializer list (generating ExplodedNodes)
   (2) creates a CompoundMemRegion for the literal
   (3) creates a new state with the bound literal values using
       GRStateManager::BindCompoundLiteral

- GRStateManager::BindCompoundLiteral simply calls 
  StoreManager::BindCompoundLiteral to get a new store and returns a persistent
  GRState with that store.

- BasicStore::BindCompoundLiteral simply returns the same store, as it
  doesn't handle field sensitivity
  
- RegionStore::BindCompoundLiteral currently fires an assert (pending discussion
  of how to best implement mappings for CompoundLiteralRegion).

llvm-svn: 58277
 2008-10-27 21:54:31 +00:00
Zhongxing Xu
144d7554c4 Use ASTContext::getCanonicalType() to get TypedRegion's type. 
llvm-svn: 58247
 2008-10-27 13:35:03 +00:00
Zhongxing Xu
36d4ade4be We cannot get precise lvalue for symbolic base array region. 
llvm-svn: 58243
 2008-10-27 12:23:17 +00:00
Zhongxing Xu
bb18b57f53 Get the canonical type for struct initialization. The original code would crash on TypedefType. 
llvm-svn: 58236
 2008-10-27 09:24:07 +00:00
Zhongxing Xu
60de6c6c63 Remove loc::StringLiteralVal. Now we allocate regions for string literals in the Store. 
llvm-svn: 58182
 2008-10-26 02:27:21 +00:00
Zhongxing Xu
bf47dc85fe Simplify ArrayToPointer conversion. Actually the only thing we need to do is to get the first element region. It is not necessary to care about the kind of the base array region. 
llvm-svn: 58181
 2008-10-26 02:23:57 +00:00
Zhongxing Xu
0d2706f6b8 Add code for get the lvalue for string literals. Now we return a StringRegion 
for StringLiteral lvalue evaluation, instead of directly returning a
loc::StringLiteralVal by the Environment.

llvm-svn: 58138
 2008-10-25 14:18:57 +00:00
Ted Kremenek
f3be44f191 Added method "getSelfRegion" to Store. This method returns the region associated with the "this" or "self" object (C++ and Objective-C respectively). 
llvm-svn: 58107
 2008-10-24 20:32:16 +00:00
Zhongxing Xu
e834fc1249 The Decl of an array region can be VarDecl or FieldDecl. Handle this in RegionStoreManager::ArrayToPointer(). 
llvm-svn: 58086
 2008-10-24 09:06:51 +00:00
Zhongxing Xu
729518be3a Implement struct initialization. Make it into a recursive function. Also make 
the array initialization code into a function.

llvm-svn: 58083
 2008-10-24 08:42:28 +00:00
Zhongxing Xu
1359e00f9c Add printing method to RegionStoreManager. 
llvm-svn: 58074
 2008-10-24 06:01:33 +00:00
Zhongxing Xu
c7796d347d Fix 80-col violation. 
llvm-svn: 58070
 2008-10-24 04:33:15 +00:00
Zhongxing Xu
cebb741f68 Add a bunch of dummy methods to make RegionStoreManager non-virtual. 
llvm-svn: 58061
 2008-10-24 01:38:55 +00:00
Zhongxing Xu
a8d2cbe47f Added getLValueElement() to RegionStore. Only handle constant array for now. 
llvm-svn: 58058
 2008-10-24 01:09:32 +00:00
Ted Kremenek
6779f893b9 Make the analyzer store (memory model) a command line option. 
llvm-svn: 58056
 2008-10-24 01:04:59 +00:00
Zhongxing Xu
2fbc35443d Add a bunch of getLValue* methods to RegionStore. 
llvm-svn: 57977
 2008-10-22 13:44:38 +00:00
Douglas Gregor
5251f1b283 Preliminary support for function overloading 
llvm-svn: 57909
 2008-10-21 16:13:35 +00:00
Zhongxing Xu
8f6855e642 Modify Store interface: GetSVal/SetSVal => Retrieve/Bind. 
llvm-svn: 57896
 2008-10-21 06:27:32 +00:00
Zhongxing Xu
83aff7079f Process decls in RegionStore. Individual elements of fixed size arrays are 
initialized to UndefinedVal.

llvm-svn: 57892
 2008-10-21 05:29:26 +00:00
Ted Kremenek
8b103c65c6 - constify some uses of MemRegion* (MemRegion should be immutable). 
- Added new region "SymbolicRegion", which maps symbol values to the region domain.
- Enhanced BasicStore::getFieldLValue() to return a FieldRegion (using SymbolicRegion)
- Added some utility methods to GRState for fetch svals from the store.
- Fixed regression in CheckNSError (we weren't getting the value bound to the parameter)

llvm-svn: 57717
 2008-10-17 20:28:54 +00:00
Zhongxing Xu
27f174214d This patch did the following renaming. There should be no functional changes. 
RVal => SVal
LVal => Loc
NonLVal => NonLoc
lval => loc
nonlval => nonloc

llvm-svn: 57671
 2008-10-17 05:57:07 +00:00
Zhongxing Xu
d9959aee34 This is the first step to implement a field-sensitive store model. Other things are simplified: no heap shape assumption, no parameter alias assumption, etc. 
llvm-svn: 57285
 2008-10-08 02:50:44 +00:00