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path: root/include/clang/Analysis/PathSensitive
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2008-04-10Fixed regressions in error reporting due to copy-paste errors (using the "begin"Ted Kremenek
iterator instead of "end") and not implementing "getDescription()" for Nil argument checks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49485 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Major refactoring/cleanup of GRExprEngine, ExplodedGraph, and BugReporter.Ted Kremenek
Bugs are now reported using a combination of "BugType" (previously BugDescription) and Bug "BugReport" objects, which are fed to BugReporter (which generates PathDiagnostics). This provides a far more modular way of registering bug types and plugging in diagnostics. GRExprEngine now owns its copy of GRCoreEngine, and is not owned by the ExplodedGraph. ExplodedGraph is no longer templated on the "checker", but instead on the state contained in the nodes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49453 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Added new "BugReporterHelper" class which is used by BugReporter to emitTed Kremenek
checker-specific diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49412 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Make typedefs public.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49185 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Hooked up GRSimpleAPICheck and the simple Objective-C Foundation checks to useTed Kremenek
the new BugReporter interface. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49180 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Mark nodes as sinks that GRAuditor says should be marked as sinks.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Added node_iterator to ExplodedGraph to allow iteration over all nodes inTed Kremenek
the graph. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49132 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Created new path-sensitive bug-reporting scheme based on the classesTed Kremenek
"BugReporter" and "BugDescription". BugDescription is used to describe a bug and provide pieces of the PathDiagnostic, and BugReporter creates the actual PathDiagnostic by crawling through the ExplodedGraph. Migrated checks done by GRSimpleVals to be reported using the new BugReporter mechanism. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Added missing #ifndef...#define...#endif directives to protect againstTed Kremenek
double includes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49126 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02Fix copy-paste error.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49076 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31Added path-sensitive check for return statements that return the addressTed Kremenek
of a stack variable. This is the path-sensitive version of a check that is already done during semantic analysis. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48980 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27Hooked up initial NSString interface checking to GRSimpleVals.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48895 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27ProgramPoint is just a smart pointer; no reason to return a constant reference.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48891 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27Add default ctor implementation.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48885 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27Added "GRAuditor" and "GRSimpleAPICheck" interface to allow simple stateless ↵Ted Kremenek
checkers to be injected into the analyzer. Added "AnnotatedPath" class to record an annotated path that will be useful for inspecting paths. Added some boilerplate code for simple checks of Apple's Foundation API. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48867 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25GRSimple analysis now outputs additional diagnostic warnings aboutTed Kremenek
passing an uninitialized value to a message expresion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48776 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25Tweak to transfer function for ObjCMessageExpr: handle both instance methodsTed Kremenek
and message expressions with a specified receiver. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48773 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25Added logic to check for uninitialized values as the receivers for message ↵Ted Kremenek
expressions and uninitialized values passed-by-value as arguments to message expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48760 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25Added initial transfer function support for ObjCMessageExpr.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48757 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21Rename "Nodify" to "MakeNode"Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48659 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17Added initial transfer function support for inline asm.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48466 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14Emit warnings for undefined control-flow.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48368 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14Path-sensitive analyses no longer take a FunctionDecl, but any Decl representingTed Kremenek
a block of "code". Patched various ASTConsumers (such as ASTDumper) to have more support for processing ObjCMethodDecl. CFGVisitor now builds CFGs for ObjCMethodDecls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48363 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-13The LiveVariables analysis no longer requires a FunctionDecl&; this allows itTed Kremenek
to be run on other declarations of blocks of code (e.g., Objective-C methods.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48339 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Changed CallRetValSymbol to SymbolConjured to allow "conjured" symbols to be ↵Ted Kremenek
created for any expression, not just CallExprs. Added experimental support for conjuring symbols during assingments where the RHS is "unknown". This allows more value tracking for path-sensitivity. Fixed bug in "assumption" logic when processing symbolic constraints; we would improperly mark constraints we didn't support as infeasible. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48306 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Fixed regression in SymbolManager introduced in r48272.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48273 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Prototype (pre-alpha) implementation of CFRef checker.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48272 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Expanded graph-visualization to include optional pretty-printing of ↵Ted Kremenek
checker-specific state. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48238 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Expanded ValueState pretty-printing to use an optional "CheckerStatePrinter"Ted Kremenek
object to pretty-print the component of a state that is specific to a checker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48237 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Expanded graph visualization interface to include specifying a range ofTed Kremenek
nodes to use a trim sources. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48236 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Added main skeleton for CFRetain transfer function logic.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48214 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10Add transfer function support for pointer arithmetic where theTed Kremenek
increment/decrement operand is on the left side. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48144 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10More edge-case handling with using liveness information to prune dead state ↵Ted Kremenek
values. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10More cleanups with using the liveness analysis to removed dead symbols andTed Kremenek
variables from the symbolic state. Now we keep a mapping from the predecessor node of a statement and its cleaned state, and interpose an accessor "GetState()" to return the cleaned state when the node is the predecessor node, and the real state otherwise. This obviates problem of ever accidentally cleaning the state more than once (thus blowing away new bindings by mistake). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48124 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09When processing the transfer function for a statement, evaluateTed Kremenek
RemoveDeadBindings early because (1) it will always be called and (2) we can dispatch to a plug-in transfer function that can evaluate the effect of dead symbols (not yet added). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48114 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09Refactored guards for "GRExprEngine::RemoveDeadBindings" directly into theTed Kremenek
method. This paves the way for other alterations to RemoveDeadBindings that are transparent to its callers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48113 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09Bug fix: Don't call RemoveDeadBindings more than once (can kill newly ↵Ted Kremenek
generated values to Block-Level Expressions). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07Added --trim-path-graph to the driver to trim paths from the ExplodedGraphTed Kremenek
that are not related to error nodes. Fixed bug where we did not detect some NULL dereferences. Added "ExplodedGraph::Trim" to trim all nodes that cannot transitively reach a set of provided nodes. Fixed subtle bug in ExplodedNodeImpl where we could create predecessor iterators that included the mangled "sink" bit. The better fix is to integrate this bit into the void* for the wrapped State, not the NodeGroups representing a node's predecessors and successors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48036 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07Renamed ValueManager to BasicValueFactory.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48025 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07Refined divide-by-zero checking to distinguish between must and mayTed Kremenek
divide-by-zero errors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48013 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-06fix typosGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47995 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05Added "CheckerState" field to ValueState.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47979 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05Small bug fix when handling CallExprs that generate sink nodes.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47970 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05Fixed bug that could case unwanted bifurcation of states when evaluating calls.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47964 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05Fixed a horribly insidious bit-masking bug in the implementation ofTed Kremenek
ExplodedNode that would occasionally result in heap corruption. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47956 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05remove the source location arguments to various target query methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47954 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05Plug-in transfer function "EvalCall" now takes as an argument the currentTed Kremenek
GRStmtNodeBuilder and is now responsible for adding its own nodes to the graph. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47923 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05Cleaned up typedefs involving StateTy so that we always use "StateTy*" ↵Ted Kremenek
instead of StateTy. This is conceptually much cleaner, as it shows that the state is always a pointer. It also makes it easier to marshall these values around across the internal APIs of the path-sensitive engine. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47921 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-04Make GRStmtNodeBuilder only depend on StateTy, and not the type definitionTed Kremenek
of the entire checker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47920 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-04Moved implementation of GRExprEngine::Nodify into GRStmtNodeBuilder. This willTed Kremenek
allow us to pass the builder to plug-in transfer functions and allow those functions to create intermediate nodes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47919 91177308-0d34-0410-b5e6-96231b3b80d8
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