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2013-04-03Escape more @ signs in Doxygen comments.Jordan Rose
Doxygen treats "@command" the same as "\command" in a doc comment, so whenever we talk about Objective-C things like "@interface" we have to make sure to escape them. Let's try to keep Clang -Wdocumentation-clean! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178603 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02Update assertion string to new name of ArithAssignBinaryOperatorStefanus Du Toit
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178572 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02Objective-C: Provide fixit hints when warningFariborz Jahanian
about 'isa' ivar being explicitely accessed when base is a user class object reference. // rdar://13503456 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178562 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02Adding a hasLocalQualifiers() AST Matcher.Edwin Vane
Updated tests and docs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178556 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02[ms-cxxabi] Rename enum and remove dead case per Jordan's suggestionReid Kleckner
The IHM_ prefix was a fairly gross abbreviation to try to hit three characters for uniqueness. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178551 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02[ms-cxxabi] Move MS inheritance model calculation into MemberPointerTypeReid Kleckner
Summary: This makes it possible to share code between lib/AST/MicrosoftCXXABI.cpp and lib/CodeGen/MicrosoftCXXABI.cpp. No functionality change. Also adds comments about the layout of the member pointer structs as I currently understand them. Reviewers: rjmccall CC: timurrrr, cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D590 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178548 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02Add -Wstatic-local-in-inline, which warns about using a static localJohn McCall
variable in a C99 inline (but not static-inline or extern-inline) function definition. The standard doesn't actually say that this doesn't apply to "extern inline" definitions, but that seems like a useful extension, and it at least doesn't have the obvious flaw that a static mutable variable in an externally-available definition does. rdar://13535367 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178520 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02[analyzer] Teach invalidateRegions that regions within LazyCompoundVal need ↵Anna Zaks
to be invalidated Refactor invalidateRegions to take SVals instead of Regions as input and teach RegionStore about processing LazyCompoundVal as a top-level “escaping” value. This addresses several false positives that get triggered by the NewDelete checker, but the underlying issue is reproducible with other checkers as well (for example, MallocChecker). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178518 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02[analyzer] For now, don't inline [cd]tors of C++ containers.Jordan Rose
This is a heuristic to make up for the fact that the analyzer doesn't model C++ containers very well. One example is modeling that 'std::distance(I, E) == 0' implies 'I == E'. In the future, it would be nice to model this explicitly, but for now it just results in a lot of false positives. The actual heuristic checks if the base type has a member named 'begin' or 'iterator'. If so, we treat the constructors and destructors of that type as opaque, rather than inlining them. This is intended to drastically reduce the number of false positives reported with experimental destructor support turned on. We can tweak the heuristic in the future, but we'd rather err on the side of false negatives for now. <rdar://problem/13497258> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178516 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02[analyzer] Cache whether a function is generally inlineable.Jordan Rose
Certain properties of a function can determine ahead of time whether or not the function is inlineable, such as its kind, its signature, or its location. We can cache this value in the FunctionSummaries map to avoid rechecking these static properties for every call. Note that the analyzer may still decide not to inline a specific call to a function because of the particular dynamic properties of the call along the current path. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178515 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02[analyzer] Use inline storage in the FunctionSummary DenseMap.Jordan Rose
The summaries lasted for the lifetime of the map anyway; no reason to include an extra allocation. Also, use SmallBitVector instead of BitVector to track the visited basic blocks -- most functions will have less than 64 basic blocks -- and use bitfields for the other fields to reduce the size of the structure. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178514 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02[analyzer] Allow suppressing diagnostics reported within the 'std' namespaceJordan Rose
This is controlled by the 'suppress-c++-stdlib' analyzer-config flag. It is currently off by default. This is more suppression than we'd like to do, since obviously there can be user-caused issues within 'std', but it gives us the option to wield a large hammer to suppress false positives the user likely can't work around. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178513 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01PR15633: Note that we are EnteringContext when parsing the nested nameRichard Smith
specifier for an enumeration. Also fix a crash-on-invalid if a non-dependent name specifier is used to declare an enum template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178502 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01Only merge down a variable type if the previous declaration wasJohn McCall
visible. There's a lot of potential badness in how we're modelling these things, but getting this much correct is reasonably easy. rdar://13535367 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178488 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01Adding parenType() and innerType() AST MatchersEdwin Vane
Updated docs and tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178487 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-01[libclang] Make clang_Cursor_getArgument work with call-exprs.Argyrios Kyrtzidis
Patch by Matthias Kleine! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178475 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-31Fix typo. This method isn't used anywhere.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178453 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-30Remove unused default values.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178435 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-30Add support for gcc-compatible -mfprnd -mno-fprnd PPC optionsHal Finkel
gcc provides -mfprnd and -mno-fprnd for controlling the fprnd target feature; support these options as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178414 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-30[analyzer] Add debug helper LocationContext::dumpStack().Jordan Rose
Sample output: #0 void construct(pointer __p, llvm::ImutAVLTree<llvm::ImutContainerInfo<clang::ento::BugType *> > *const &__val) #1 void push_back(const value_type &__x) #2 void destroy() #3 void release() #4 void ~ImmutableSet() git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178400 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-29[analyzer] Address Jordan’s review of r178309 - do not register an extra ↵Anna Zaks
visitor for nil receiver We can check if the receiver is nil in the node that corresponds to the StmtPoint of the message send. At that point, the receiver is guaranteed to be live. We will find at least one unreclaimed node due to my previous commit (look for StmtPoint instead of PostStmt) and the fact that the nil receiver nodes are tagged. + a couple of extra tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178381 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-29When looking for overridden ObjC methods, don't ignore 'hidden' ones.Argyrios Kyrtzidis
When using modules we should not ignore overridden methods from categories that are hidden because the module is not visible. This will give more consistent results (when imports change) and it's more correct since the methods are indeed overridden even if they are not "visible" for lookup purposes. rdar://13350796 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178374 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-29Sema: Warn on sizeof on binary ops on decayed arrays.Benjamin Kramer
The array will decay into a pointer, creating an unexpected result. sizeof(array + int) is an easy to make typo for sizeof(array) + int. This was motivated by a NetBSD security bug, used sizeof(key - r) instead of sizeof(key) - r, reducing entropy in a random number generator. http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/kern/subr_cprng.c.diff?r1=1.14&r2=1.15&only_with_tag=MAIN&f=h Differential Revision: http://llvm-reviews.chandlerc.com/D571 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178371 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-29Add RDSEED intrinsic support defined in AVX2 extensionMichael Liao
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178331 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-29Add XTEST intrinsic defined in TSX extensionMichael Liao
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178330 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-29Revert r178273 as it broke the Linux bootstrap due to false positivesTimur Iskhodzhanov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178320 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-29Add static analyzer support for conditionally executing static initializers.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178318 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-29Add configuration plumbing to enable static initializer branching in the CFG ↵Ted Kremenek
for the analyzer. This setting still isn't enabled yet in the analyzer. This is just prep work. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178317 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28[analyzer] Add support for escape of const pointers and use it to allow ↵Anna Zaks
“newed” pointers to escape Add a new callback that notifies checkers when a const pointer escapes. Currently, this only works for const pointers passed as a top level parameter into a function. We need to differentiate the const pointers escape from regular escape since the content pointed by const pointer will not change; if it’s a file handle, a file cannot be closed; but delete is allowed on const pointers. This should suppress several false positives reported by the NewDelete checker on llvm codebase. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178310 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28[analyzer] Apply the suppression rules to the nil receiver only if the value ↵Anna Zaks
participates in the computation of the nil we warn about. We should only suppress a bug report if the IDCed or null returned nil value is directly related to the value we are warning about. This was not the case for nil receivers - we would suppress a bug report that had an IDCed nil receiver on the path regardless of how it’s related to the warning. 1) Thread EnableNullFPSuppression parameter through the visitors to differentiate between tracking the value which is directly responsible for the bug and other values that visitors are tracking (ex: general tracking of nil receivers). 2) in trackNullOrUndef specifically address the case when a value of the message send is nil due to the receiver being nil. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178309 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Warn about more than the first unused variable when -Werror is set.Matt Beaumont-Gay
To do this, thread DiagnosticErrorTrap's hasUnrecoverableErrorOccurred through to Scope. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178294 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Objective-C: Provide fixit suggestions when class objectFariborz Jahanian
is accessed via accessing 'isa' ivar to use object_getClass/object_setClass apis. // rdar://13503456 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178282 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Implemented a warning when an input several bitwise operations areSam Panzer
likely be implicitly truncated: * All forms of Bitwise-and, bitwise-or, and integer multiplication. * The assignment form of integer addition, subtraction, and exclusive-or * The RHS of the comma operator * The LHS of left shifts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178273 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Add CFG logic to create a conditional branch for modeling static initializers.Ted Kremenek
This is an optional variant of the CFG. This allows analyses to model whether or not a static initializer has run, e.g.: static Foo x = bar(); For basic dataflow analysis in Sema we will just assume that the initializer always runs. For the static analyzer we can use this branch to accurately track whether or not initializers are on. This patch just adds the (opt-in) functionality to the CFG. The static analyzer still needs to be modified to adopt this feature. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178263 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28These are all simple pointer wrappers. Pass them by value.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178247 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Add support for gcc-compatible -mpopcntd -mno-popcntd PPC optionsHal Finkel
gcc provides -mpopcntd and -mno-popcntd for controlling the popcntd target feature; support these options as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178235 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28[Mips] Handle pseudo-target flags '-EL' and '-EB' and properly adjustSimon Atanasyan
toolchain flags for MIPS targets. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178232 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Add support for gcc-compatible -mmfcrf -mno-mfcrf PPC optionsHal Finkel
gcc provides -mmfcrf and -mno-mfcrf for controlling what we call the mfocrf target feature. Also, PPC is now making use of the static function AddTargetFeature used by the Mips Driver code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178227 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Support C11 _Atomic type qualifier. This is more-or-less just syntactic ↵Richard Smith
sugar for the _Atomic type specifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178210 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28Fold together the two implementations of 6.7.3p2 in SemaType. Fix two bugs, ↵Richard Smith
each of which was only present in one version: * Give the right diagnostic for 'restrict' applied to a non-pointer, non-reference type. * Don't reject 'restrict' applied indirectly to an Objective-C object pointer type (eg, through template instantiation). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178200 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27[Parser] Don't code-complete twice.Argyrios Kyrtzidis
When we are consuming the current token just to enter a new token stream, we push the current token in the back of the stream so that we get it again. Unfortunately this had the effect where if the current token is a code-completion one, we would code-complete once during consuming it and another time after the stream ended. Fix this by making sure that, in this case, ConsumeAnyToken() will consume a code-completion token without invoking code-completion. rdar://12842503 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178199 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27Fixes a typo in my last patch.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178184 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27Objective-C: Issue more precise warning when userFariborz Jahanian
is accessing 'isa' as an object pointer. // rdar://13503456. FixIt to follow in another patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178179 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27Cleanup clang's specializations of simplify_type.Rafael Espindola
Now that the basic implementation in llvm has been fixed, simplify the specializations in clang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178173 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27[analyzer] Ensure that the node NilReceiverBRVisitor is looking for is not ↵Anna Zaks
reclaimed The visitor should look for the PreStmt node as the receiver is nil in the PreStmt and this is the node. Also, tag the nil receiver nodes with a special tag for consistency. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178152 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27[modules] Make sure enabled diagnostic pragmas inside the module don't ↵Argyrios Kyrtzidis
affect the translation unit that imports the module. Getting diagnostic sections from modules properly working is a fixme. rdar://13516663 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178151 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27<rdar://problem/13509689> Introduce -module-file-info option that provides ↵Douglas Gregor
information about a particular module file. This option can be useful for end users who want to know why they ended up with a ton of different variants of the "std" module in their module cache. This problem should go away over time, as we reduce the need for module variants, but it will never go away entirely. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178148 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27Implement compiler intrinsics needed for compatibility with MSVC 2012 ↵Joao Matos
<type_traits>. Patch by me and Ryan Molden. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178111 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27[modules] Before marking the module imported macros as ambiguous, check if ↵Argyrios Kyrtzidis
this is a case where the system macro uses a not identical definition compared to a macro from the clang headers. For example (these come from different modules): \#define LONG_MAX __LONG_MAX__ (clang's limits.h) \#define LONG_MAX 0x7fffffffffffffffL (system's limits.h) in which case don't mark them ambiguous to avoid the "ambiguous macro expansion" warning. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178109 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-27Remove IdentifierInfo::setHadMacroDefinition()Argyrios Kyrtzidis
It's not used anymore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178108 91177308-0d34-0410-b5e6-96231b3b80d8