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2011-11-01[analyzer] Fix PR11282 - an assert in markAsSinkAnna Zaks
This is another fallout from the refactoring. We were calling MarkAsSink on a cached out node. (Fixes radar://10376675) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143516 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01[analyzer] Make sure the child builder use temporary destination setsAnna Zaks
The parent and child builders should not share node sets. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143515 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01[analyzer] BranchNodeBuilder should not generate autotransitions.Anna Zaks
This fixes radar://10367606 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143514 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01[analyzer] CheckerContext::getPredecessor() cleanupAnna Zaks
Remove unnecessary calls to CheckerContext::getPredecessor() + Comments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143513 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01[analyzer] Remove the CheckerContext's destructor.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143512 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-29Rename Expr::Evaluate to Expr::EvaluateAsRValue to make it clear that it willRichard Smith
implicitly perform an lvalue-to-rvalue conversion if used on an lvalue expression. Also improve the documentation of Expr::Evaluate* to indicate which of them will accept expressions with side-effects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143263 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28[analyzer] ObjC message sends to nil receivers that return structs are now ↵Ted Kremenek
okay (compiler zeroes out the data). Fixes <rdar://problem/9151319>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143215 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27[analyzer] Move enqueueEndOfFunction into CoreEngine.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143090 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27[analyzer] Make CoreEngine responsible for enqueueing Stmt Nodes.Anna Zaks
Enqueue the nodes generated as the result of processing a statement inside the Core Engine. This makes sure ExpEngine does not access CoreEngine's private members and is more concise. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143089 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26[analyzer] Add getLocationContext to CheckerContextAnna Zaks
CheckerContext::getPredecessor is only used to get to the LocationContext half of the times. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143061 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26[analyzer] Remove EmitBasicReport form CheckerContext.Anna Zaks
The path sensitive checkers should use EmitBasicReport, which provides the node information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143060 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26[analyzer] Rename generateNode -> addTransition in CheckerContextAnna Zaks
Also document addTransition methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143059 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26[analyzer] GenericNodeBuilder -> NodeBuilder.Anna Zaks
Remove GenericNodeBuilder and use a class inherited from NodeBuilder instead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143057 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25[analyzer] Remove getEngine() form CheckerContextAnna Zaks
A step toward making sure that diagnostics report should only be generated though the CheckerContext and not though BugReporter or ExprEngine directly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142947 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25[analyzer] Simplify CheckerContextAnna Zaks
Remove dead members/parameters: ProgramState, respondsToCallback, autoTransition. Remove addTransition method since it's the same as generateNode. Maybe we should rename generateNode to genTransition (since a transition is always automatically generated)? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142946 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25[analyzer] Remove unused headers.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142945 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25[analyzer] Make branch for condition callback use CheckerContextAnna Zaks
Now, all the path sensitive checkers use CheckerContext! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142944 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25[analyze] Convert EndOfPath callback to use CheckerContextAnna Zaks
Get rid of the EndOfPathBuilder completely. Use the generic NodeBuilder to generate nodes. Enqueue the end of path frontier explicitly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25Implement support for dependent Microsoft __if_exists/__if_not_existsDouglas Gregor
statements. As noted in the documentation for the AST node, the semantics of __if_exists/__if_not_exists are somewhat different from the way Visual C++ implements them, because our parsed-template representation can't accommodate VC++ semantics without serious contortions. Hopefully this implementation is "good enough". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142901 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25Add source-level dominators analysis. Patch by Guoping Long!Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142885 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Node builders cleanup + commentsAnna Zaks
Renamed PureNodeBuilder->StmtNodeBuilder. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142849 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Remove the old StmtNodeBuilder.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142848 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Completely remove the global Builder object.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142847 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Remove more dependencies from global BuilderAnna Zaks
- OSAtomicChecker - ExprEngine::processStmt git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142846 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Convert ExprEngine::visit() to use short lived builders.Anna Zaks
This commit removes the major functional dependency on the ExprEngine::Builder member variable. In some cases the code became more verbose. Particularly, we call takeNodes() and addNodes() to move responsibility for the nodes from one builder to another. This will get simplified later on. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Convert VisitDeclStmt to use local node builder.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Convert more functions (ex:evalBind()) to iterative buildersAnna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Convert VisitUnaryOperator to use short lived Node buildersAnna Zaks
To convert iteratively, we take the nodes the local builder will process from the from the global builder and add the generated nodes after the short lived builder is done. PureStmtNodeBuilder is the one we should eventually use everywhere. Added Stmt index and Builder context as ExprEngine globals. To avoid passing them around. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142828 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Use a temporary builder in CheckerContext.Anna Zaks
First step toward removing the global Stmt builder. Added several transitional methods (like takeNodes/addNodes). + Stop early if the set of exploded nodes for the next iteration is empty. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142827 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Pass external Dst set to NodeBuilderAnna Zaks
This moves the responsibility for storing the output node set from the builder to the clients. The builder is just responsible for transforming an input set into the output set: {SrcSet/SrcNode} -> {Frontier}. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142826 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24Rename AnalysisContext to AnalysisDeclContext. Not only is this name more ↵Ted Kremenek
accurate, but it frees up the name AnalysisContext for other uses. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142782 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-23[analyzer] Remove LocationContext creation methods from AnalysisManager, and ↵Ted Kremenek
change clients to use AnalysisContext instead. WIP to remove/reduce ExprEngine's usage of AnalysisManager. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142739 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Move predecessor into the NodeBuilder context.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142454 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Make NodeBuilder and Pred node loosely coupledAnna Zaks
NodeBuilder should not assume it's dealing with a single predecessor. Remove predecessor getters. Modify the BranchNodeBuilder to not be responsible for doing auto-transitions (which depend on a predecessor). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142453 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Remove StmtNodeBuilder from CheckerContextAnna Zaks
It now only depends on a generic NodeBuilder instead. As part of this change, make the generic node builder results finalized by default. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142452 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Subclassing StmtBuilder from the NodeBuilderAnna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142451 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Remove dead code.Anna Zaks
ExprEngineBuilders is not used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142450 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Modularize builder use in processBranch.Anna Zaks
Take advantage of the new builders for branch processing. As part of this change pass generic NodeBuilder (instead of BranchNodeBuilder) to the BranchCondition callback and remove the unused methods form BranchBuilder. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142448 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Pull Pred out of NodeBuilderContext.Anna Zaks
Each builder will have a different one, so it doesn't make sense to keep it in the context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142447 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] NodeBuilder Refactoring: Subclass BranchNodeBuilder from NodeBuilder.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142444 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Node Builder refactoring: Introduce a simple Node Builder ↵Anna Zaks
responsible for generating the node frontier. Currently we have a bunch of different node builders which provide some common functionality but are difficult to refactor. Each builder generates nodes of different kinds and calculates the frontier nodes, which should be propagated to the next step (after the builder dies). Introduce a new NodeBuilder which provides very basic node generation facilities but takes care of the second problem. The idea is that all the other builders will eventually use it. Use this builder in CheckerContext instead of StmtNodeBuilder (the way the frontier is propagated to the StmtBuilder is a hack and will be removed later on). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142443 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-14Refactor static analyzer to use simpler interface to constant expression ↵Richard Smith
evaluation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141983 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-14Change operator<< for raw_ostream and NamedDecl to take a reference instead ↵Benjamin Kramer
of a pointer. Passing a pointer was a bad idea as it collides with the overload for void*. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141971 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11[analyzer] Remove an unused member variable.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141690 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11[analyzer] CheckerContext updates checkDst in it's destructor, so make sure ↵Anna Zaks
the object is destructed before checkDst is used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141683 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11[analyzer] Fix a typo.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141678 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11[analyzer] Warn about the use of insecure, deprecated vfork() function ↵Anna Zaks
PR11053 (http://llvm.org/bugs/show_bug.cgi?id=11053). A patch by Graham Lee! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141643 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Initial implementation of __atomic_* (everything except __atomic_is_lock_free).Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141632 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-10[analyzer] Teach the static analyzer about CXXForRangeStmt. Patch by Jim ↵Ted Kremenek
Goodnow II! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141587 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-10Constant expression evaluation refactoring:Richard Smith
- Remodel Expr::EvaluateAsInt to behave like the other EvaluateAs* functions, and add Expr::EvaluateKnownConstInt to capture the current fold-or-assert behaviour. - Factor out evaluation of bitfield bit widths. - Fix a few places which would evaluate an expression twice: once to determine whether it is a constant expression, then again to get the value. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141561 91177308-0d34-0410-b5e6-96231b3b80d8
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