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2009-01-28retain/release checker: Always generate an "autorelease" summary for an ↵Ted Kremenek
"autorelease" message, and have the summary processing logic treat it as a no-op in GC mode. This change is motivated to encode more of the semantics in the summaries themselves for eventual better diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63241 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28retain/release checker: Improve diagnostics to indicate that CF objects are ↵Ted Kremenek
not automatically garbage collected. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63187 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28retain/release checker: Indicate whether a tracked object is a Core ↵Ted Kremenek
Foundation or Objective-C object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63186 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28retain/release checker: More diagnostic refactoring.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28retain/release checker: Embed an "object type" into the RetEffect/RetVal ↵Ted Kremenek
objects to help distinguish between Objective-C and Core Foundation objects (for better diagnostics). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63183 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28retain/release checker: More cleanups (no real functionality change).Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63181 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Fix diagnostic truncated by my last patch.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63180 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28retain/release checker: More diagnostic refactoring.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63179 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28retain/release checker: Output the name of the function that allocates an ↵Ted Kremenek
object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63178 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Refactor some diagnostic code to use raw_string_ostream. No functionality ↵Ted Kremenek
change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63177 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Remove '#if 0' code.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63176 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-27Split the single monolithic DiagnosticKinds.def file into oneChris Lattner
.def file for each library. This means that adding a diagnostic to sema doesn't require all the other libraries to be rebuilt. Patch by Anders Johnsen! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63111 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-27Fix bug in BasicStore::getLValueElement where if the base of an array ↵Ted Kremenek
subscript expression was an ElementRegion we stacked another ElementRegion on top of that. This fixes PR 3422. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63110 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-27Introduce a new PresumedLoc class to represent the concept of a locationChris Lattner
as reported to the user and as manipulated by #line. This is what __FILE__, __INCLUDE_LEVEL__, diagnostics and other things should follow (but not dependency generation!). This patch also includes several cleanups along the way: - SourceLocation now has a dump method, and several other places that did similar things now use it. - I cleaned up some code in AnalysisConsumer, but it should probably be simplified further now that NamedDecl is better. - TextDiagnosticPrinter is now simplified and cleaned up a bit. This patch is a prerequisite for #line, but does not actually provide any #line functionality. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-27PathDiagnostics:Ted Kremenek
- Add the distinction between the 'bug type' and the 'bug description' HTMLDiagnostics: - Output the bug type field as HTML comments scan-build: - Use the bug type field instead of the bug description for the HTML table. - Radar filing now automatically picks up the bug description in the title (addresses <rdar://problem/6265970>) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63084 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-26Correct size assumption; fixes a crash on amd64.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63031 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-26Use tag classes instead of typedefs for GDM entries 'ConstNotEq' and ↵Ted Kremenek
'ConstEq'. This avoids collisions in the GDM. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63002 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-25Rename Expr::isConstantExpr to Expr::isConstantInitializer; this more Eli Friedman
accurately states what the function is trying to do and how it is different from Expr::isEvaluatable. Also get rid of a parameter that is both unused and inaccurate. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62951 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-24Fix crash ElementRegion::getRValueType() when the RvalueType of the ↵Ted Kremenek
ArrayRegion is a typedef and not (directly) a pointer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62909 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-24More hacking on static analyzer diagnostics. When emitting summary ↵Ted Kremenek
diagnostics the code paths for diagnostics involving paths or single locations are now unified. This patch also constifies many arguments/methods that are touched by this logic, leading to a nice overall code cleanup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62903 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-23Output summary diagnostic for each bug report.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-23Added virtual method DiagnosticClient::IncludeInDiagnosticCounts(). This is ↵Ted Kremenek
used by Diagnostics to determine if a diagnostic sent to a given DiagnosticClient should be included in the count of diagnostics. The default implementation of this method returns 'true'. Implemented DiagCollector::IncludeInDiagnosticCounts() to return 'false' so that the batching of diagnostics for use with BugReporter doesn't mess up the count of real diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62873 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-23Implement retrieval of the default value of element and field regions.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62847 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-23Now this comment should be resolved. See the comments for the KillSet.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62846 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-23When getting the element region type, we should get the rvalue type of the superZhongxing Xu
region. Otherwise we would get an extra level of pointer type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22For now, return UnknownVal() in RegionStore::getElementsSize() for ↵Ted Kremenek
AnonTypedRegions. It wasn't really doing the right thing and was crashing on rdar-6442306-1.m. This fix causes all path-sensitive test cases to pass with RegionStore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62816 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22Add RegionStore support for the implicit object region that 'self' ↵Ted Kremenek
references. This causes tests 'ObjCProperties.m' and 'refcnt_naming.m' to now pass with RegionStore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62814 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22Fix RegionStore::getLValueElement() to handle the case when the base region ↵Ted Kremenek
is not an ElementRegion (also do some cleanups of its core logic). This gets array-struct.c to work with RegionStore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62781 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22SymbolReaper::isLive(SymbolRef) now always returns true for ↵Ted Kremenek
SymbolRegionRvalues because these represent the symbolic values for parameters/globals upon entry to the function. These values are always ;live' because they represent constraints on the context of how the function was called. This will be useful for both summary generation but is also necessary to get RegionStore's lazy-binding of locations to symbols to work in practice with RemoveDeadBindings. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62771 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22Static analyzer: Remove a bunch of outdated SymbolData objects andTed Kremenek
their associated APIs. We no longer need separate SymbolData objects for fields, variables, etc. Instead, we now associated symbols with the "rvalue" of a MemRegion (i.e., the value stored at that region). Now we only have two kinds of SymbolData objects: SymbolRegionRValue and SymbolConjured. This cleanup also makes the distinction between a SymbolicRegion and a symbolic value that is a location much clearer. A SymbolicRegion represents a chunk of symbolic memory, while a symbolic location is just a "pointer" with different possible values. Without any specific knowledge, a symbolic location resolves (i.e., via a dereference) to a SymbolicRegion. In the future, when we do better alias reasoning, a symbolic location can become an alias for another location, thus merging the constraints on the referred SymbolicRegion with the other region. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62769 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-21Combine two branches into one. No functionality change.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62727 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-21Static Analyzer: Replace LiveSymbols/DeadSymbols sets with a new object ↵Ted Kremenek
called "SymbolReaper". Right now it just consolidates the two and cleans up some client code, but shortly it will be used to enable "lazy computation" of live symbols for use with RegionStore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62722 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-21Get RegionStore to work with the retain/release checker and its test cases.Ted Kremenek
Because the RegionStore can reason about values beyond the reasoning power of BasicStore, this patch splits some of the test cases for the retain/release checker to have versions that are handled by RegionStore (more warnings) and BasicStore (less warnings). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62667 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-20Remove ScopedDecl, collapsing all of its functionality into Decl, soDouglas Gregor
that every declaration lives inside a DeclContext. Moved several things that don't have names but were ScopedDecls (and, therefore, NamedDecls) to inherit from Decl rather than NamedDecl, including ObjCImplementationDecl and LinkageSpecDecl. Now, we don't store empty DeclarationNames for these things, nor do we try to insert them into DeclContext's lookup structure. The serialization tests are temporarily disabled. We'll re-enable them once we've sorted out the remaining ownership/serialiazation issues between DeclContexts and TranslationUnion, DeclGroups, etc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62562 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-20Dead stores checker: Fix <rdar://problem/6506065> by being more selective ↵Ted Kremenek
when say that a store is dead even though the computed value is used in the enclosing expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62552 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-17Fix analyzer crash found when scanning Wine sources where the analyzer used ↵Ted Kremenek
old logic to determine the value of a switch 'case' label. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62395 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16StringRegion::print: Remove copy/paste code and just call ↵Ted Kremenek
Stmt::printPretty() for the StringLiteral. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62340 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Fix PR 3337 [retain/release checker]: Handle FunctionDecl's declared using ↵Ted Kremenek
typedefs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62331 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16more SourceLocation lexicon change: instead of referring to theChris Lattner
"logical" location, refer to the "instantiation" location. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62316 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-16Change some terminology in SourceLocation: instead of referring to Chris Lattner
the "physical" location of tokens, refer to the "spelling" location. This is more concrete and useful, tokens aren't really physical objects! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62309 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15Fix some unused variable, control reaches end of non-void function,Daniel Dunbar
and uninitialized use options. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62270 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-13add a fixme.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-13Add KillStruct to region store. Zhongxing Xu
- put the killed region in the kill set. - set its default value to unknown. - removes all bindings for its subregions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62138 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-13static analyzer: Handle casts from arrays to integers. This fixes PR 3297.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62130 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-13Invert condition on branch (was causing RegionStore::ArrayToPointer to ↵Ted Kremenek
return 'unknown' on most cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62129 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-12retain/release checker:Ted Kremenek
- Refactor a bunch of logic in the retain/release checker, making it more condense and easier to read. - Add support for "Create" methods in the DiskArbitration framework retain/release tests: - Rename CFDate.m to retain-release.m, and move test from CFString.c to retain-release.m - Add DiskArbitration framework tests cases. - Add/refine and few more retain/release GC test cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62106 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09Dead stores checker: Don't flag dead stores for self-assignments (common ↵Ted Kremenek
escape hatch for 'unused variable' warnings). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62010 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-08Add isSubRegionOf() method to SubRegion.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61924 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-07Update some doxygen comments to be more rich. Remove ↵Ted Kremenek
StoreManager::GetRegionSVal. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61894 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-07Refactor MemRegionManager instance variable into parent class. No ↵Ted Kremenek
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61888 91177308-0d34-0410-b5e6-96231b3b80d8
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