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path: root/include/clang/Analysis
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2007-12-21Changed "Location" from "ProgramEdge" to "ProgramEdge&" (slightly more sveltTed Kremenek
memory representation). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45297 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21SimulVertex now subclasses FoldingSetNode.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45296 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21Added Profile method to SimulVertex.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45295 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21Directory restructing of Analysis files.Ted Kremenek
Created include/clang/Analysis/Analyses directory. - Moved LiveVariables.h and UninitializedValues.h into this dir. Moved ExprDeclBitVector.h into Analysis/Support. Updated all clients who use these headers to reflect the new paths. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45292 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21Renamed file AnalysisVertex.h to SimulVertex.hTed Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45291 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21Renamed class AnalysisVertex to SimulVertexTed Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45290 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-21Added class "StateVariant", a template class which serves to wrap states thatTed Kremenek
are generated by transfer functions used by the path-sensitive dataflow solver. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45273 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-20Added initial implementation of "AnalysisVertex", a class to represent aTed Kremenek
location*state vertex in an intra-procedural, path-sensitive dataflow supergraph. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45272 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10Fixed bug in CFG::PopulateBlkExprMap where the orderingTed Kremenek
between fetching the size of the expression map (for use as the next integer id for an Expr*) and the creation of the entry in the map could be non-deterministic. This could cause the size of the map to be incremented prior to the index being determine. On Linux the map entry would be created first, causing the map to the "size" to be incremented prior to it being queried. On Mac OS X we had the reverse behavior. Now the size is always queried prior to the new id being inserted into the map. This was the real cause of the bit-overrun triggered in PR 1847: http://llvm.org/bugs/show_bug.cgi?id=1847 Also reverted the change in patch 44813, which was a bogus fix to this problem: http://llvm.org/viewvc/llvm-project?rev=44813&view=rev git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44822 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10Fixed off-by-one-error when resizing Bitvectors used forTed Kremenek
dataflow analysis over expressions and decls. This should fix bug 1847: http://llvm.org/bugs/show_bug.cgi?id=1847 Thanks to Török Edwin for providing a test case that identified the problem. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44813 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-04Removed IntrusiveSPtr. There are no clients of this class anymore, so it isTed Kremenek
not needed, and it was never extensively tested. If we need an intrusive reference-counting smart pointer, we can always import intrusive_ptr from boost. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44571 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-20Updated CFGStmtVisitor and CFGRecStmtVisitor to have a notion ofTed Kremenek
"block-expressions" when visiting arbitrary expressions (via calls to "Visit()"). This results in a refactoring where a dataflow analysis no longer needs to always special case when handling block-expressions versus non-block expressions. Updated LiveVariables and UninitializedValues to conform to the slightly altered interface of these visitor classes. Thanks to Nuno Lopes for providing a test case that illustrated some fundamental problems in the current design of the CFGXXXStmtVisitor classes and how they were used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44246 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-19Removed PersistentMap. It is now superseded in every way by the ImmutableMapTed Kremenek
and ImmutableSet classes in the main LLVM libraries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44237 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-09Remove addition of protocol names to declaration scopes, use a separateFariborz Jahanian
DenseMap to keep track of such declarations and derive ObjcProtocolDecl directyly from NamedScope. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42801 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-08Rename FileVariable -> FileVar for consistency with its class name, Chris Lattner
likewise block and param. Reorder the layout of the Decl kind enum so that the inheritance tree is reflected in the ordering. This allows trivial range comparisons to determine whether something is an instance of some abstract class, making classof faster. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42772 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-08Several small patches to do pretty printing for objective-c top-level declsFariborz Jahanian
(minimal printing), Derive ObjcClassDecl from Decl. Ted may want to take note of the change I made to CFGRecStmtDeclVisitor.h git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42764 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-05Removed DataflowStmtVisitor. It is no longer used, and is obsoletedTed Kremenek
by newer visitor interfaces. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42662 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-03Fixed bug where intrusive_ptr_add_ref and intrusive_ptr_release wereTed Kremenek
not declared "static inline." Removed member templates for operator= and copy constructor. They simply didn't work as expected. Fixed reference counting bug when a smart pointer is assigned the value of another smart pointer that refers to the same address. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42562 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-02ObjcCategoryDecl Does not subclass from ScopedDecl any more.Fariborz Jahanian
Ted may want to take a look at the change I made at FGRecStmtDeclVisitor.h. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42535 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-02Moved ProgramEdge out out include/.../Analysis/PathSensitive to ↵Ted Kremenek
include/.../Analysis, as it is now used by the FlowSensitive subsystem as well. Removed "Edge" nested class by CFG, as it is now subsumed by ProgramEdge. Adjusted DataflowSolver and DataflowValues to use ProgramEdges instead of CFG::Edge. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42534 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-02Added DenseMapInfo traits for ProgramEdgesTed Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42530 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-01Migrated LiveVariables and UninitializedVariables to now use theTed Kremenek
tracked BlkExpr information now maintained by the CFG class. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42498 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-01Move ObjC decls to DeclObjC.h, a new AST header.Steve Naroff
Update clients and add to project file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42494 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-28Added ProgramEdge.h, which defines ProgramEdge (and subclasses) thatTed Kremenek
encapsulate a program point within a CFG for use by our path-sensitive dataflow solver. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42455 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-28Significant cleanups and bug-fixes to LiveVariables. Uses new refactoredTed Kremenek
ExprDeclBitVector class for defining dataflow state. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42446 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-28Refactored ExprDeclBitVector into two classes:Ted Kremenek
DeclBitVector ExprDeclBitVector (which subclasses the former) DeclBitVector is for analyses that just want to track bitvector state for declarations. ExprDeclBitVector is for analyses that want to track bitvector state for both both declarations and CFGBlock-level expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42445 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-28Fixed bug where declaration initializer expressions were notTed Kremenek
traversed by the visitor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42438 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-28Added iterator mechanism to iterator over the decls and expressionsTed Kremenek
tracked by an ExprDeclBitVector analysis. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42437 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-28Fixed several bugs in the propagation of "uninitialized value"Ted Kremenek
taintness across expressions. Made "smart-culling" of taint propagation (for error reporting) correctly handle conditional expressions and a few other edge cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42421 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-27Created new "ExprDeclBitVector" type bundle for dataflow analyses that need ↵Ted Kremenek
boolean values associated with ScopedDecls and CFGBlock-level Exprs. This is the common boilerplate needed by UninitializedValues and LiveVariables. Refactored UninitializedValues to use ExprDeclBitVector. Shortened the string diagnostic for UninitializedValues. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42408 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-26Added extra guard for null Stmt* when traversing the AST using VisitChildren.Ted Kremenek
Added assertion that Block-level statements should not be NULL. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42376 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-25Moved "DataflowSolver.h" to the "include/" subtree. Adjusted clientTed Kremenek
code that uses the solver to reflect the new location. Created "FlowSensitive" subdirectory in include/clang/Analysis to hold header files relating to flow-sensitive analyses. Moved "DataflowValues.h" into this subdirectory. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42320 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-25Further refactored DataflowSolver. Now most code for the solver is sharedTed Kremenek
between forward and backward analyses, with trait classes being used to implement the key differences in operations/functionality. Converted the LiveVariables analysis to use the generic DataflowSolver. This, along with removing some extra functionality that was not needed, reduced the code for LiveVariables by over half. Modified Driver code to handle the updated interface to LiveVariables. Modified the DeadStores checker to handle the update interface to LiveVariables. Updated DataflowValues (generic ADT to store dataflow values) to also store values for blocks. This is used by DeadStores. Updated some comments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42293 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-25Added extra "constness" to parameter.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42292 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-25Added PersistentMap, an ADT that implements a map data structure thatTed Kremenek
is persistent. Adds/removals to a PersistentMap do not result in a map being modified, but a new map being created. This will be useful for path-sensitive analyses. The current implementation mainly makes copies to implement this functionality. If the map turns out to be extensively used, this implementation will be replaced with a more efficient one that uses data sharing (see comments in PersistentMap.h for more information). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42290 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-24Added smart pointer class "IntrusiveSPtr" that handles referenceTed Kremenek
counted objects that maintain their own internal reference count. This smart pointer implementation is compatible with LLVM-style down-casting (see in llvm: include/llvm/Support/Casting.h). Implemented "RefCounted", a base class that objects that wish to be managed using IntrusiveSPtrs can subclass. Reference counted objects are being targeted for use in path-sensitive dataflow analyses where managing many live objects becomes difficult. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42260 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-23Fix for 64-bit systems.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42253 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-20Renamed "include/clang/Analysis/CFGVisitors" "<snip>/Analysis/Visitors".Ted Kremenek
"Visitors" is more general than "CFGVisitors", as we aren't just using visitation useful for CFG analysis. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42174 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-20Moved include/clang/Analysis/*Visitor.h to include/clang/Analysis/CFGVisitors.Ted Kremenek
We had enough visitors that it was cluttering the Analysis directory. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42173 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-19More refactoring: decl and expr regisitration now uses CFGRecStmtDeclVisitor.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42145 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-19Added two new visitors that extend CFGStmtVisitor: CFGRecStmtVisitor and ↵Ted Kremenek
CFGRecStmtDeclVisitor. The extended functionality of these visitors is that they automatically visit all statements in an AST (no explicit recursion is required from subclasses), and the for the latter, decls are visited as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42144 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-18DataflowSolver now acccepts an "_Equal" template parameter that allows the userTed Kremenek
to specify how two dataflow values should be compared for equality. The default is to use std::equal_to. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42115 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-18Fixed bug where getBitRef would incorrectly grab the bit from theTed Kremenek
wrong bitvector. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42114 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-18More refactoring and code reduction.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42109 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-18Modified DataFlowValues and DataflowSolver to associate dataflow valueTed Kremenek
with CFG *edges* instead of blocks. This will fascilitate dataflow analyses that are sensitive to block terminators, and also simplifies some reasoning. Updated UninitializedValues to comply to this new interface. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42099 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-17UninitialuzedValues now only tracks BlockVarDecls; obviating false positives ↵Ted Kremenek
with globals and function parameters. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42055 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-17More progress on UnitializedValues checker. We now have preliminary supportTed Kremenek
for reporting errors and running the checker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42046 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-17Split tracking of unitialized values for Decls and CFGBlock-level expressions.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42041 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-17Removed "ObserverTy" from core DataflowValues types. The observerTed Kremenek
mechanism can be implemented simply by affixing the Observer to an analysis meta data, so it doesn't need to be a required type. This also permits analyses not to implement an Observer if it doesn't make sense. Changed "DataflowValues::MetaDataTy" to "DataflowValues::AnalysisDataTy" to reflect that the type enscapsulated the data associated with analyzing a given CFG. Changed CFGStmtVisitor::BlockStmt_VisitImplicitControlFlowStmt(Stmt*) to ...VisitImplicitControlFlowExpr(Expr*). The type narrowing is more precise and more useful to clients. Added CFGStmtVisitor::BlockStmt_VisitExpr to reflect the visitation of expressions at the block statement level. This captures all implicit control-flow statements as well as other expressions that are hoisted to the block level (such as conditions for terminators and function calls). This is especially useful for dataflow analysis. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42034 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-15switch the various CFG-based stuff over to using ASTConsumer interface,Chris Lattner
this eliminates their dependence on the preprocessor and eliminates some duplicated code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@41993 91177308-0d34-0410-b5e6-96231b3b80d8
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