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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] 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
2011-10-25Add 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 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
2011-10-24Rename 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
2011-10-18[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 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] 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
2011-10-14Change 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] 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
2011-10-10Constant 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
2011-10-07Remove AnalysisContext::getLiveVariables(), and introduce a templatized ↵Ted Kremenek
mechanism to lazily create analyses that are attached to AnalysisContext objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141425 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-07Rename TagDecl::isDefinition -> isCompleteDefinitionJohn McCall
for better self-documenting code, since the semantics are subtly different from getDefinition(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141355 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06Clang-side build system infrastructure for multiple tblgens.Peter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141267 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06[analyzer] Remove the dependency on CheckerContext::getStmt() as well as the ↵Anna Zaks
method itself. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141262 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05Fix major regression in RetainCountChecker. DefaultSummaries were not being ↵Ted Kremenek
used when they were meant to be. Fixes <rdar://problem/10241614>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141250 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05[analyzer] Remove the last dependency on CheckerContext::getNodeBuilder() as ↵Anna Zaks
well as the method itself. Checkers should not directly access NodeBuilder, nodes can be created by calling the CheckerContext's generateNode() methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141249 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05[analyzer] OSAtomicChecker implements evalCall in a very invasive way - it ↵Anna Zaks
essentially simulates inlining of compareAndSwap() by means of setting the NodeBuilder flags and calling ExprEngine directly. This commit introduces a new callback just for this checker to unblock checker API cleanup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141246 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04[analyzer] Removing more references to CheckerContext::getNodeBuilder(): ask ↵Anna Zaks
CheckerContext to generate the nodes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141136 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04[analyzer] Removing references to CheckerContext::getNodeBuilder(): checkers ↵Anna Zaks
can obtain block count directly from the Context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04[analyzer] Remove unused methods, add comments to others.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141098 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03[analyzer] Remove redundant state (AnalysisContext pointer for every ↵Anna Zaks
BinaryOperator tracked) from IdempotentOperationChecker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141045 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03[analyzer] In UndefBranchChecker, use a node generator which does not create ↵Anna Zaks
an edge/branching. (ExprEngine should be in charge of generating edges. The checkers should examine the condition and generate PostCondition node if needed.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141034 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03[analyzer] Cleanup in UndefBranchChecker:Anna Zaks
- Remove unused FindUndefExpr::ProgramStateManager. - The Condition parameter of the callback is the terminator of the block, no need to retrieve it again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141027 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03Allow getting all source locations of selector identifiers in a ObjCMethodDecl.Argyrios Kyrtzidis
Instead of always storing all source locations for the selector identifiers we check whether all the identifiers are in a "standard" position; "standard" position is -Immediately before the arguments: -(id)first:(int)x second:(int)y; -With a space between the arguments: -(id)first: (int)x second: (int)y; -For nullary selectors, immediately before ';': -(void)release; In such cases we infer the locations instead of storing them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140989 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-01Tweak the interface for analyzing the CF conventions for a nameJohn McCall
to take a FunctionDecl* instead of an llvm::StringRef. Eventually we might push more logic in there, like using slightly different conventions for C++ methods. Also, fix a bug where 'copy' and 'create' were being caught in non-camel-cased strings. We want copyFoo and CopyFoo and XCopy but not Xcopy or xcopy. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140911 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-30[analyzer] Fix a bug in RetainReleaseChecker diagnostics. It gives more ↵Anna Zaks
precise error message on the modified test case (and prevents duplicate diagnostics when we purge at block granularity). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140840 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27Fix a crash in MallocOverflowSecurityChecker. Patch by Lei Zhang.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140648 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-24Fix comment typo.Benjamin Kramer
Patch by Rui Paulo! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140448 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23Switch assert(0/false) llvm_unreachable.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140367 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20[analyzer] Refactor PathDiagnosticLocation: Make ↵Anna Zaks
PathDiagnosticLocation(SourceLocation...) private. Most of the effort here goes to making BugReport refer to a PathDiagnosticLocation instead of FullSourceLocation. (Another step closer to the goal of having Diagnostics which can recover from invalid SourceLocations.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140182 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15[analyzer] Refactor: make PathDiagnosticLocation responsible for validation ↵Anna Zaks
of SourceLocations (commit 2 of ?): - Fix a fixme and move the logic of creating a PathDiagnosticLocation corresponding to a ProgramPoint into a PathDiagnosticLocation constructor. - Rename PathDiagnosticLocation::create to differentiate from the added constructor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139825 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15[analyzer] Refactor: make PathDiagnosticLocation responsible for validation ↵Anna Zaks
of SourceLocations (commit 2 of ?): - Modify all PathDiagnosticLocation constructors that take Stmt to also requre LocationContext. - Add a constructor which should be used in case there is no valid statement/location (it will grab the location of the enclosing function). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139763 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14[analyzer] Refactor: Make PathDiagnosticLocation responsible for creating a ↵Anna Zaks
valid object given an ExploadedNode (the same logic can be reused by other checkers). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139672 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Switch LangOptions over to a .def file that describes header of theDouglas Gregor
language options. Use that .def file to declare the LangOptions class and initialize all of its members, eliminating a source of annoying initialization bugs. AST serialization changes are next up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-03Make helpers static, remove unused variables.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139078 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02[analyzer] Remove TransferFuncs.h, then deal with the fallout.Jordy Rose
And with that, TransferFuncs is gone! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139003 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02[analyzer] Move RetainReleaseChecker to the Checkers library and rename it ↵Jordy Rose
to RetainCountChecker...and clean up the file while I'm at it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139002 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02[analyzer] Move the knowledge of whether or not GC is enabled for the ↵Jordy Rose
current analysis from CFRefCount to ExprEngine. Remove TransferFuncs from ExprEngine and AnalysisConsumer. Demote RetainReleaseChecker to a regular checker, and give it the name osx.cocoa.RetainCount (class name change coming shortly). Update tests accordingly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138998 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Extend the ASTContext constructor to delay the initialization ofDouglas Gregor
builtin types (When requested). This is another step toward making ASTUnit build the ASTContext as needed when loading an AST file, rather than doing so after the fact. No actual functionality change (yet). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01If size was equal to 0, either NULL or a pointer suitable to be passed to Zhongxing Xu
free() is returned by realloc(). Most code expect NULL. And we only need to transfer one final ProgramState. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138937 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31[analyzer] Fix varargs helper to only use POD types even for named ↵Jordy Rose
arguments. Thanks, Joerg. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138875 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29[analyzer] MacOSKeychainAPIChecker: Simplify getSymbolForRegion by using ↵Anna Zaks
existing API. Thanks Jordy. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29Fix: Bug 10798 - [analyzer] Crash when analyzing ICU. (A slight improvement ↵Anna Zaks
on the previous commit.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138762 91177308-0d34-0410-b5e6-96231b3b80d8
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