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2012-09-14Comment parsing: support the "\invariant" command.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163905 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Don't perform template argument deduction against invalid templates;Douglas Gregor
it's likely to lead to a crash later on. Fixes PR12933 / <rdar://problem/11525335>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163838 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Comment parsing: handle \deprecated command. It is a block command, but itDmitri Gribenko
should be fine to use it without further explanations in the attached paragraph, so the warning about empty paragraph was turned off for it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163836 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Promote the warning about extra qualification on a declaration from aDouglas Gregor
warning to an error. C++ bans it, and both GCC and EDG diagnose it as an error. Microsoft allows it, so we still warn in Microsoft mode. Fixes <rdar://problem/11135644>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163831 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13ASTMatchersMacros.h: Appease msvc.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163798 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Create initial support for matching and binding NestedNameSpecifier(Loc)s.Daniel Jasper
Review: http://llvm-reviews.chandlerc.com/D39 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163794 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Fix Doxygen misuse: refer to parameter names in paragraphs correctly (\arg isDmitri Gribenko
not what most people want -- it starts a new paragraph). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Add missing accessor.Manuel Klimek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163792 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Conditionally parse documentation comments in system headers byTed Kremenek
passing -fretain-comments-from-system-headers. By default, the compiler no longer parses such documentation comments, as they can result in a noticeable compile time/PCH slowdown. Fixes <rdar://problem/11860820>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163778 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Format strings: offer a fixit for Darwin's %D/%U/%O to ISO %d/%u/%o.Jordan Rose
<rdar://problem/12061922> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163772 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Format strings: %D, %U, and %O are valid on Darwin (same as %d, %u, %o).Jordan Rose
These will warn under -Wformat-non-iso, and will still be rejected outright on other platforms. <rdar://problem/12061922> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163771 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13[analyzer] Don't reimplement an existing function.Anna Zaks
Thanks Jordan. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163762 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-13Refactor logic in ExprEngine for detecting 'noreturn' methodsTed Kremenek
in NSException to a helper object in libAnalysis that can also be used by Sema. Not sure if the predicate name 'isImplicitNoReturn' is the best one, but we can massage that later. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163759 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12Add two new functions to Qualifiers.Richard Trieu
static Qualifiers removeCommonQualifiers(Qualifiers &L, Qualifiers &R) Removes the common qualifiers from L and R and returns them in a new Qualifier. This will be used in template diffing. void removeQualifiers(Qualifiers Q) Removes the qualifiers in Q from the current qualifier. This replaces the current underlying implementation of operator- and operator -= which only performed bit masking. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163752 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12[analyzer] Do not report use of undef on "return foo();" when the return ↵Anna Zaks
type is void. Fixes a false positive found by analyzing LLVM code base. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163750 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12[analyzer] Teach UndefOrNullArgVisitor to track parent regions.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163748 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12Rename isA to isSameOrDerivedFrom.Daniel Jasper
There are two evils we can choose from: - Name overlap between isA-matcher and llvm::isa<>() - Bad name for what the isA-matcher currently does After some discussion we have agreed to go with the latter evil. Review: http://llvm-reviews.chandlerc.com/D40 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163740 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12Comment parsing: recognize more Doxygen commandsDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12Fix a couple of Doxygen issues pointed out by -Wdocumentation.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163722 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12Revert "objective-C: warn under a flag if missing argument"Ted Kremenek
We plan on discussing this more, but we shouldn't have it in the compiler in an incomplete state. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163720 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12Revert "objective-C: warn if selector has nothing but bare"Ted Kremenek
We plan on discussing this more. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163719 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-12PR13811: Add a FunctionParmPackExpr node to handle references to functionRichard Smith
parameter packs where the reference is not being expanded but the pack has been. Previously, Clang would segfault in such cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163672 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11objective-C: warn if selector has nothing but bareFariborz Jahanian
':' in its name. // rdar://8366823 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163650 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11Comment parsing: handle non-builtin commands correctly. After semanticDmitri Gribenko
analysis registers a command, it becomes a "known" command for the lexer, since it has an ID. Having this freedom of choice to register a command is a good thing since BriefParser does not need this. But the parser should still invoke the correct semantic analysis method (actOnUnknownCommand) in this case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163646 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11objective-C: warn under a flag if missing argumentFariborz Jahanian
name results in unintended selector name. // rdar://12263549 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163634 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11Fix typo in commentDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163597 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11[analyzer] Member function calls that use qualified names are non-virtual.Jordan Rose
C++11 [expr.call]p1: ...If the selected function is non-virtual, or if the id-expression in the class member access expression is a qualified-id, that function is called. Otherwise, its final overrider in the dynamic type of the object expression is called. <rdar://problem/12255556> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10[analyzer] Do not count calls to small functions when computing stackAnna Zaks
depth. We only want to count how many substantial functions we inlined. This is an improvement to r163558. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163571 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10[analyzer] Add an option to enable/disable objc inlining.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163562 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10[analyzer] Add ipa-always-inline-size option (with 3 as the default).Anna Zaks
The option allows to always inline very small functions, whose size (in number of basic blocks) is set using -analyzer-config ipa-always-inline-size option. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163558 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10[analyzer] Make the defaults explicit for each of the new config options.Jordan Rose
Also, document both new inlining options in IPA.txt. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163551 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10[analyzer] For now, don't inline C++ standard library functions.Jordan Rose
This is a (heavy-handed) solution to PR13724 -- until we know we can do a good job inlining the STL, it's best to be consistent and not generate more false positives than we did before. We can selectively whitelist certain parts of the 'std' namespace that are known to be safe. This is controlled by analyzer config option 'c++-stdlib-inlining', which can be set to "true" or "false". This commit also adds control for whether or not to inline any templated functions (member or non-member), under the config option 'c++-template-inlining'. This option is currently on by default. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163548 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Comment AST: TableGen'ize all command lists in CommentCommandTraits.cpp.Dmitri Gribenko
Now we have a list of all commands. This is a good thing in itself, but it also enables us to easily implement typo correction for command names. With this change we have objects that contain information about each command, so it makes sense to resolve command name just once during lexing (currently we store command names as strings and do a linear search every time some property value is needed). Thus comment token and AST nodes were changed to contain a command ID -- index into a tables of builtin and registered commands. Unknown commands are registered during parsing and thus are also uniformly assigned an ID. Using an ID instead of a StringRef is also a nice memory optimization since ID is a small integer that fits into a common bitfield in Comment class. This change implies that to get any information about a command (even a command name) we need a CommandTraits object to resolve the command ID to CommandInfo*. Currently a fresh temporary CommandTraits object is created whenever it is needed since it does not have any state. But with this change it has state -- new commands can be registered, so a CommandTraits object was added to ASTContext. Also, in libclang CXComment has to be expanded to include a CXTranslationUnit so that all functions working on comment AST nodes can get a CommandTraits object. This breaks binary compatibility of CXComment APIs. Now clang_FullComment_getAsXML(CXTranslationUnit TU, CXComment CXC) doesn't need TU parameter anymore, so it was removed. This is a source-incompatible change for this C API. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163540 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Thread-safety analysis: differentiate between two forms of analysis; a preciseDeLesley Hutchins
analysis that may give false positives because it is confused by aliasing, and a less precise analysis that has fewer false positives, but may have false negatives. The more precise warnings are enabled by -Wthread-safety-precise. An additional note clarify the warnings in the precise case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163537 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10objective-C: Improving diagnostocs for missing call toFariborz Jahanian
super's annotated methods. // rdar://6386358 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163517 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Have PathDiagnosticPiece::getString() return a StringRef insteadTed Kremenek
of a std::string. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163488 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-09RawCommentList: don't copy the whole new RawComment to LastComment each time.Dmitri Gribenko
We just need a single SourceLocation for previous comment end. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163482 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-09Remove dead method ProgramState::MarshalState().Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163479 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-09Added missing const.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163477 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-08When a bad UTF-8 encoding or bogus escape sequence is encountered in aRichard Smith
string literal, produce a diagnostic pointing at the erroneous character range, not at the start of the literal. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163459 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-08Format strings: suggest %lld instead of %qd and %Ld with -Wformat-non-iso.Jordan Rose
As a corollary to the previous commit, even when an extension is available, we can still offer a fixit to the standard modifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163453 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-08Format strings: %Ld isn't available on Darwin or Windows.Jordan Rose
This seems to be a GNU libc extension; we offer a fixit to %lld on these platforms. <rdar://problem/11518237> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163452 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07objective-C: introduce __attribute((objc_requires_super)) on methodFariborz Jahanian
in classes. Use it to flag those method implementations which don't contain call to 'super' if they have 'super' class and it has the method with this attribute set. This is wip. // rdar://6386358 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163434 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07Remove ProgramState::getSymVal(). It was being misused by Checkers,Ted Kremenek
with at least one subtle bug in MacOSXKeyChainAPIChecker where the calling the method was a substitute for assuming a symbolic value was null (which is not the case). We still keep ConstraintManager::getSymVal(), but we use that as an optimization in SValBuilder and ProgramState::getSVal() to constant-fold SVals. This is only if the ConstraintManager can provide us with that information, which is no longer a requirement. As part of this, introduce a default implementation of ConstraintManager::getSymVal() which returns null. For Checkers, introduce ConstraintManager::isNull(), which queries the state to see if the symbolic value is constrained to be a null value. It does this without assuming it has been implicitly constant folded. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163428 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07Add default implementation of ConstraintManager::getSymVal() and a doxygen ↵Ted Kremenek
comment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163426 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07Remove ConstraintManager:isEqual(). It is no longer used.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163425 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07Moved back getCharAndSizeNoWarn to public area.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163408 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07Change the behavior of the isDerivedFrom-matcher to not match on theDaniel Jasper
class itself. This caused some confusion (intuitively, a class is not derived from itself) and makes it hard to write certain matchers, e.g. "match and bind any pair of base and subclass". The original behavior can be achieved with a new isA-matcher. Similar to all other matchers, this matcher has the same behavior and name as the corresponding AST-entity - in this case the isa<>() function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163385 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07Implements hasAncestor.Manuel Klimek
Implements the hasAncestor matcher. This builds on the previous patch that introduced DynTypedNode to build up a parent map for an additional degree of freedom in the AST traversal. The map is only built once we hit an hasAncestor matcher, in order to not slow down matching for cases where this is not needed. We could implement some speed-ups for special cases, like building up the parent map as we go and only building up the full map if we break out of the already visited part of the tree, but that is probably not going to be worth it, and would make the code significantly more complex. Major TODOs are: - implement hasParent - implement type traversal - implement memoization in hasAncestor git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163382 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07PR9023: A template template parameter whose template parameter list contains anRichard Smith
unexpanded parameter pack is a pack expansion. Thus, as with a non-type template parameter which is a pack expansion, it needs to be expanded early into a fixed list of template parameters. Since the expanded list of template parameters is not itself a parameter pack, it is permitted to appear before the end of the template parameter list, so also remove that restriction (for both template template parameter pack expansions and non-type template parameter pack expansions). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163369 91177308-0d34-0410-b5e6-96231b3b80d8
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