llvm-svn: 50484

llvm-svn: 50466

llvm-svn: 50458

llvm-svn: 50453

Patch by Emerson Murhpy-Hill.

llvm-svn: 50452

This removes the failure in null-deref-ps.c (test suite).

llvm-svn: 50449

EvalStore/EvalLoad to handle all loads/stores from symbolic memory, allowing us
to do checks for null dereferences, etc., at any arbitrary load/store (these
were missed checks before). This also resulted in some major cleanups, some
conceptual, and others just in the structure of the code.

This temporarily introduces a regression in the test suite (null-deref-ps.c)
before I add a new LVal type for structure fields.

llvm-svn: 50443

llvm-svn: 50396

llvm-svn: 50395

The transfer functions for the checker don't do anything special yet in GC mode.

llvm-svn: 50394

Add corresponding enum in LangOptions.

llvm-svn: 50387

std::pair<CFGBlock*, CFGBlock*> that have an 8-byte alignment for use with
ProgramPoint. This fixes a bug reported by Argiris where using std::set<> on
Windows would result in a 4-byte alignment, not an 8-byte alignment.

Fixes: <rdar://problem/5892265>
llvm-svn: 50364

This is the same for functions and it's preferable to have the namespace as DeclContext during ActOnPopScope.

llvm-svn: 50322

-NamespaceDecl for the AST
-Checks for name clashes between namespaces and tag/normal declarations.

This commit doesn't implement proper name lookup for namespaces.

llvm-svn: 50321

llvm-svn: 50320

Make assertions for all addresses passed to ProgramPoint that they have at least an 8-byte alignment.

llvm-svn: 50310

empty CFGBlocks that only contained a terminator.

Added improved diagnostics for break and continue statements and default branches in switch statements.

This fixes <rdar://problem/5889244>.

llvm-svn: 50286

reimplemented in Sema someday.  This is tracked in PR2236.  Until then
disabling it removes some bogus diagnostics (see 2236).

llvm-svn: 50263

comments on the ML will follow

llvm-svn: 50262

llvm-svn: 50246

llvm-svn: 50245

Don't emit empty strings for path diagnostics when taking the default branch of a switch statement that has no label.

llvm-svn: 50242

Implemented support for better localized leaks in the CF reference count checker.
Now leaks should be flagged close to where they occur.

This should implement the desired functionality in <rdar://problem/5879592>, although the diagnostics still need to be improved.

llvm-svn: 50241

llvm-svn: 50237

llvm-svn: 50233

its super class. This patch is incomplete.

llvm-svn: 50228

function logic to act when symbols become dead.

llvm-svn: 50221

This fixes <rdar://problem/5886141>.

Part of this change resulted in creating sparser summaries.  I also added
some more comments and did some minor code cleanups.

llvm-svn: 50214

when processing a constraint we don't understand.  This allows the frontend
to gracefully fail.

llvm-svn: 50213

that say that we are jumping to "case a" instead of "case 0".

This is a feature implementation for <rdar://problem/5880430>.

llvm-svn: 50197

llvm-svn: 50195

When building PathDiagnostics for bug reports, generate a trimmed ExplodedGraph with a single path that BugReport objects can safely walk and introspect.

llvm-svn: 50194

Problem:

In the recently refactored VisitDeref (which processes dereferences), we
were incorrectly skipping the node just generated for the subexpression
of the dereference.  This was a horrible regression.

llvm-svn: 50176

when it is constructed via deserialization.  This is done by recording a flag
indicating that this is the case, and it deletes these objects by getting
the references stored in the ASTContext object.  This fixes some memory
leaks that occurs when we deserialize translation units from bitcode files.

The rationale between having TranslationUnit sometimes own these objects and
sometimes not is that a TranslationUnit object can be constructed from
state generated by the parser (Preprocessor; semantic analyzer, etc.), and thus
in these cases won't own the IdentifierTable or Selectors, etc.  During
deserialization, there is no Preprocessor, so somebody needs to own these
objects in order for them to be properly reclaimed.

llvm-svn: 50149

always be taken even if it was not feasible.

llvm-svn: 50132

llvm-svn: 50126

llvm-svn: 50119

to print declaration from its AST.

llvm-svn: 50117

the line we are going to.

llvm-svn: 50113

llvm-svn: 50112