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2012-06-08Warn in ObjC++ when an 'auto' variable deduces type 'id'.Jordan Rose
This could happen for cases like this: - (NSArray *)getAllNames:(NSArray *)images { NSMutableArray *results = [NSMutableArray array]; for (auto img in images) { [results addObject:img.name]; } return results; } Here the property access will fail because 'img' has type 'id', rather than, say, NSImage. This warning will not fire in templated code, since the 'id' could have come from a template parameter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158239 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08Disallow using ObjC literals in direct comparisons (== and friends).Jordan Rose
Objective-C literals conceptually always create new objects, but may be optimized by the compiler or runtime (constant folding, singletons, etc). Comparing addresses of these objects is relying on this optimization behavior, which is really an implementation detail. In the case of == and !=, offer a fixit to a call to -isEqual:, if the method is available. This fixit is directly on the error so that it is automatically applied. Most of the time, this is really a newbie mistake, hence the fixit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158230 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08PR13051: If a constructor is explicitly defaulted, it isn't marked as beingRichard Smith
constexpr until we get to the end of the class definition. When that happens, be sure to remember that the class actually does have a constexpr constructor. This is a stopgap solution, which still doesn't cover the case of a class with multiple copy constructors (only some of which are constexpr). We should be performing constructor lookup when implicitly defining a constructor in order to determine whether all constructors it invokes are constexpr. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158228 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08Disable _Pragma during HTML macro rewriting to keep from crashing.Jordan Rose
The preprocessor's handling of diagnostic push/pops is stateful, so encountering pragmas during a re-parse causes problems. HTMLRewrite already filters out normal # directives including #pragma, so it's clear it's not expected to be interpreting pragmas in this mode. This fix adds a flag to Preprocessor to explicitly disable pragmas. The "right" fix might be to separate pragma lexing from pragma parsing so that we can throw away pragmas like we do preprocessor directives, but right now it's important to get the fix in. Note that this has nothing to do with the "hack" of re-using the input preprocessor in HTMLRewrite. Even if we someday copy the preprocessor instead of re-using it, the copy would (and should) include the diagnostic level tables and have the same problems. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158214 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08Switch LineTableInfo to use FileID instead of int for file references,Douglas Gregor
from Tom Honermann! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158211 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08[libclang] Don't crash when saving a PCH from a prefix headerArgyrios Kyrtzidis
that does not exist. rdar://11607033 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158193 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-07Add ext_vector type code for builtins, from John Garvin!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158156 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-07Fix many doxygen formatting errors.Chandler Carruth
This patch affects docs only, and includes formatting changes only (though those include some fixes for broken Doxygen markup that caused some content to be missing from generated pages). It avoids generating many spurious pages such as http://clang.llvm.org/doxygen/classRepresents.html, but likely not all yet. Patch by James Dennett. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158155 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-07Reuse APInt's getNumWords, which gets rounding right (my ad-hoc solution ↵Benjamin Kramer
missed it). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158151 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-07Plug a long standing memory leak in TemplateArgument.Benjamin Kramer
The integral APSInt value is now stored in a decomposed form and the backing store for large values is allocated via the ASTContext. This way its not leaked as TemplateArguments are never destructed when they are allocated in the ASTContext. Since the integral data is immutable it is now shared between instances, making copying TemplateArguments a trivial operation. Currently getting the integral data out of a TemplateArgument requires creating a new APSInt object. This is cheap when the value is small but can be expensive if it's not. If this turns out to be an issue a more efficient accessor could be added. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158150 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-07[analyzer] Anti-aliasing: different heap allocations do not aliasAnna Zaks
Add a concept of symbolic memory region belonging to heap memory space. When comparing symbolic regions allocated on the heap, assume that they do not alias. Use symbolic heap region to suppress a common false positive pattern in the malloc checker, in code that relies on malloc not returning the memory aliased to other malloc allocations, stack. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158136 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-07Insert a space if necessary when suggesting CFBridgingRetain/Release.Jordan Rose
This was a problem for people who write 'return(result);' Also fix ARCMT's corresponding code, though there's no test case for this because implicit casts like this are rejected by the migrator for being ambiguous, and explicit casts have no problem. <rdar://problem/11577346> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158130 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Whenever we have a BalancedDelimiterTracker, we have a 'nested' scopeDouglas Gregor
where '>' is going to behave as an operator (and not as a '>' closing a template argument list). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158111 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06[analyzer] Provide debug descriptions for all memory space regions.Jordan Rose
Patch by Guillem Marpons! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158106 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Fix Makefile: Options.td depends on CC1Options.td.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158105 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Revert Decl's iterators back to pointer value_type rather than reference ↵David Blaikie
value_type In addition, I've made the pointer and reference typedef 'void' rather than T* just so they can't get misused. I would've omitted them entirely but std::distance likes them to be there even if it doesn't use them. This rolls back r155808 and r155869. Review by Doug Gregor incorporating feedback from Chandler Carruth. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158104 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Add a -rewrite-includes option, which is similar to -rewrite-macros, but ↵David Blaikie
only expands #include directives. Patch contributed by Lubos Lunak (l.lunax@suse.cz). Review by Matt Beaumont-Gay (matthewbg@google.com). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158093 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Remove unused private member variables found by clang's new ↵Benjamin Kramer
-Wunused-private-field. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158086 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Add pedantic warning -Wempty-translation-unit (C11 6.9p1).Jordan Rose
In standard C since C89, a 'translation-unit' is syntactically defined to have at least one "external-declaration", which is either a decl or a function definition. In Clang the latter gives us a declaration as well. The tricky bit about this warning is that our predefines can contain external declarations (__builtin_va_list and the 128-bit integer types). Therefore our AST parser now makes sure we have at least one declaration that doesn't come from the predefines buffer. Also, remove bogus warning about empty source files. This doesn't catch source files that only contain comments, and never fired anyway because of our predefines. PR12665 and <rdar://problem/9165548> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158085 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06Introduce -Wunused-private-field. If enabled, this warning detectsDaniel Jasper
unused private fields of classes that are fully defined in the current translation unit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158054 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-05RecursiveASTVisitor: add ability to visit implicit declarations. Patch byRichard Smith
James Dennett! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158002 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-04Add a warning for when an array-to-pointer decay is performed on an arrayRichard Smith
temporary or an array subobject of a class temporary, and the resulting value is used to initialize a pointer which outlives the temporary. Such a pointer is always left dangling after the initialization completes and the array's lifetime ends. In order to detect this situation, this change also adds an LValueClassification of LV_ArrayTemporary for temporaries of array type which aren't subobjects of class temporaries. These occur in C++11 T{...} and GNU C++ (T){...} expressions, when T is an array type. Previously we treated the former as a generic prvalue and the latter as a class temporary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157955 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-04[objcmt] Don't migrate to subscripting syntax if the required methods have notArgyrios Kyrtzidis
been declared on NSArray/NSDictionary. rdar://11581975 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157951 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-04Fixed a problem related to resolution of built-in headers in case a path of ↵Alexander Kornienko
tool's binary contains sym-links. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157944 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-04Removing the lambda extension warning concerning single return statements, ↵Aaron Ballman
as it no longer applies. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157943 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-04Require -pie when linking with ASan on Android.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157923 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-04Test the '__thread' before 'static' warning.Hans Wennborg
Also fix the '__thread' before 'extern' case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157921 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02Fix typos found by http://github.com/lyda/misspell-checkBenjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157886 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02Implementation of a "soft opt-in" option for -Wimplicit-fallthrough ↵Alexander Kornienko
diagnostics: -Wimplicit-fallthrough-per-method git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157871 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02[analyzer] Rely on canBeInlined utility instead of checking CallExprAnna Zaks
explicitly. This will make it easier to add inlining support to more expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157870 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-01static analyzer: add inlining support for directly called blocks.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157833 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-01[arcmt] Use CFBridgingRetain/CFBridgingRelease instead of ↵Argyrios Kyrtzidis
__bridge_retained/__bridge_transfer when migrating. rdar://11569198 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157785 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-31Fix an object lifetime issue in clang/Tooling.Alexander Kornienko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157759 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-31Allow some BugReports to opt-out of PathDiagnostic callstack pruning until ↵Ted Kremenek
we have significantly improved the pruning heuristics. The current heuristics are pretty good, but they make diagnostics for uninitialized variables warnings particularly useless in some cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157734 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-31Add builtin for pclmulqdq instruction.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157733 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-30Only visit default arguments for template declarations when visiting the ↵Richard Smith
template declaration which introduced them. Patch by Yang Chen! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157723 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-30Change wording of 'memcpy' type mismatch warning and remove fixit.Anna Zaks
As per comments following r157659. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157722 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-30Disable -Wunique-enum for anonymous enums.David Blaikie
This is a large class of false positives where anonymous enums are used to declare constants (see Clang's Diagnostics.h for example). A small number of true positives could probably be found in this bucket by still warning if the anonymous enum is used in a declarator (enum { ... } x;) but so far we don't believe this to be a source of significant benefit so I haven't bothered to preserve those cases. General offline review/acknowledgment by rtrieu. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157713 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-30Adds a toString method to Replacement, which helps debugging.Manuel Klimek
Adds missing header guards to Refactoring.h. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157694 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-30Mark extrqi and insertqi immediate arguments as being ICE.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157675 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-30Add new -Wunique-enum which will warn on enums which all elements have theRichard Trieu
same value and were initialized with literals. Clang will warn on code like this: enum A { FIRST = 1, SECOND = 1 }; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157666 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-30Add fixits for memory access warnings.Anna Zaks
Also, do not display the builtin name and macro expansion when the function is a builtin. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157659 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-29Add an ammintrin.h header for SSE4a intrinsics.Benjamin Kramer
This is a clean-room implementation based on public documentation and I tried to validate it as much as possible against gcc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157638 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-29Factor out the code retrieves the last PIC related argument fromSimon Atanasyan
the Clang::ConstructJob() to the new ArgList::getLastArg() routine with eight argument. That simplifies reusing of this code. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157633 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-29Revert r155737, restoring the MaxDepth in the BalancedDelimiterTracker to 256.Chad Rosier
r155737 turned out to be a temporary work around. The correct fix was in r155823. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157627 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-28Fix suspicous isIntegerType() check, found by PVS Studio (PR12357).Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157593 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-28Address minor FIXME in RedeclLink to contain a PointerIntPair instead of ↵David Blaikie
derive from it. Use actual factory functions rather than derived classes acting as named constructors/factories. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157588 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-27Pass ProgramStateRef by reference.Benjamin Kramer
Retain + Release on a ref counted pointer is cheap, but not free (it adds a function call in this case). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157534 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-27Use the SelectorSet typedef more widely throughout Sema.Benjamin Kramer
While there make it a SmallPtrSet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157532 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-27Replace some custom hash combines with the standard stuff from DenseMapInfo.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157531 91177308-0d34-0410-b5e6-96231b3b80d8
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