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path: root/lib/Sema/SemaOverload.cpp
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2010-06-29Factor the conversion from a switch condition to an integral orDouglas Gregor
enumeration type out into a separate, reusable routine. The only functionality change here is that we recover a little more aggressively from ill-formed switch conditions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107222 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-22Vector types are not arithmetic types, either. Note that we now banDouglas Gregor
__real myvec and __imag myvec, since they aren't all that useful (it's just an identity function) but we might want to use them in more restricted cases in the future (e.g., "__real mycomplexvec" could extract the real parts of a vector of complex numbers). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106601 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-22Type Type::isRealFloatingType() that vectors are not floating-pointDouglas Gregor
types, updating callers of both isFloatingType() and isRealFloatingType() accordingly. Caught at least one issue where we allowed one to declare a vector of vectors (!), along with cleaning up the standard-conversion logic for C++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106595 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-22Change Type::isFloatingType() to reflect the actual definition of aDouglas Gregor
"floating type" in C, which does not include vector types. Introduce Type::hasFloatingRepresentation() for the places where we want to know whether the underlying representation is one or more floating-point values. Remove some hacks we had where the former behavior of Type::isFloatingType() was at odds with the language definition of the term. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106584 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-22Don't allow vector conversions to sneak in under the guise ofDouglas Gregor
floating-point conversions or floating-integral conversions. We really, really, really need to make isFloatingType() and friends not apply to vector types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106551 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17Use UnaryOperator as the representation of dependent expressions whenDouglas Gregor
no overloaded operators were found in scope, mirroring what we already do for BinaryOperator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106222 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Fix a point of semantics with using declaration hiding: method templatesJohn McCall
introduced by using decls are hidden even if their template parameter lists or return types differ from the "overriding" declaration. Propagate using shadow declarations around more effectively when looking up template-ids. Reperform lookup for template-ids in member expressions so that access control is properly set up. Fix some number of latent bugs involving template-ids with totally invalid base types. You can only actually get these with a scope specifier, since otherwise the template-id won't parse as a template-id. Fixes PR7384. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106093 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Give Type::isIntegralType() an ASTContext parameter, so that itDouglas Gregor
provides C "integer type" semantics in C and C++ "integral type" semantics in C++. Note that I still need to update isIntegerType (and possibly other predicates) using the same approach I've taken for isIntegralType(). The two should have the same meaning, but currently don't (!). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106074 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Introduce Type::isIntegralOrEnumerationType(), to cover those placesDouglas Gregor
in C++ that involve both integral and enumeration types. Convert all of the callers to Type::isIntegralType() that are meant to work with both integral and enumeration types over to Type::isIntegralOrEnumerationType(), to prepare to eliminate enumeration types as integral types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106071 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11Conversions from Objective C object pointers to bool are "pointer conversionsJohn McCall
to bool" in the sense of C++ [over.ics.rank]p4 bullet 1. I have decreed it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105817 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11Fix the 64-bit build. operator<<(DiagnosticBuilder, long) doesn't exist, soJeffrey Yasskin
ptrdiff_t (long on 64-bit, apparently) is ambiguous between the int and unsigned int overloads. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105816 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11Add an option -fshow-overloads=best|all to limit the number of overloadJeffrey Yasskin
candidates printed. We default to 'all'. At the moment, 'best' prints only the first 4 overloads, but we'll improve that over time. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105815 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-09Tweak our handling of the notion of a standard conversion sequenceDouglas Gregor
being a subsequence of another standard conversion sequence. Instead of requiring exact type equality for the second conversion step, require type *similarity*, which is type equality with cv-qualifiers removed at all levels. This appears to match the behavior of EDG and VC++ (albeit not GCC), and feels more intuitive. Big thanks to John for the line of reasoning that supports this change: since cv-qualifiers are orthogonal to the second conversion step, we should ignore them in the type comparison. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105678 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-08A built-in overload candidate is consider a non-template function whenDouglas Gregor
determining whether one overload candidate is better than another. Fixes PR7319. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105642 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-08Implement a warning when converting the literal 'false' to aDouglas Gregor
pointer. Original patch by Troy D. Straszheim; fixes PR7283. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105621 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25Make sure to strip off top-level cv-qualifiers as part of aDouglas Gregor
derived-to-base conversion on a pointer. Fixes PR7224. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104607 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-23An identity conversion is better than any non-identityDouglas Gregor
conversion. Fixes PR7095. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104476 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-23Provide the overloaded functions for UnresolvedLookupExpr andDouglas Gregor
UnresolvedMemberExpr in their constructors, rather than adding them after the fact. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104468 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-19Implement C++ builtin operator candidates for vector types.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104105 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-18Misc. fixes to bring Objetive-C++'s handling ofFariborz Jahanian
gc attributes to be inline with Objective-C (for radar 7925141). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104084 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-18Implement C++ support for vector and extended vector types. ThisDouglas Gregor
involves extending implicit conversion sequences to model vector conversions and vector splats, along with teaching the C++ conditional operator-checking code about vector types. Fixes <rdar://problem/7983501>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104081 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-18Tweak typo-correction logic a bit regarding "super", so that weDouglas Gregor
consider "super" as a candidate whenever we're parsing an expression within an Objective-C method in an interface that has a superclass. At some point, we'd like to give "super" a little edge over non-local names; that will come later. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104022 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-16fix rdar://7985267 - Don't emit an error about a non-pod argumentChris Lattner
passed to va_start, it doesn't actually pass it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103899 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-15Substantially alter the design of the Objective C type AST by introducingJohn McCall
ObjCObjectType, which is basically just a pair of one of {primitive-id, primitive-Class, user-defined @class} with a list of protocols. An ObjCObjectPointerType is therefore just a pointer which always points to one of these types (possibly sugared). ObjCInterfaceType is now just a kind of ObjCObjectType which happens to not carry any protocols. Alter a rather large number of use sites to use ObjCObjectType instead of ObjCInterfaceType. Store an ObjCInterfaceType as a pointer on the decl rather than hashing them in a FoldingSet. Remove some number of methods that are no longer used, at least after this patch. By simplifying ObjCObjectPointerType, we are now able to easily remove and apply pointers to Objective-C types, which is crucial for a certain kind of ObjC++ metaprogramming common in WebKit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-12Objective-C++ Sema. Support for conversion of a C++Fariborz Jahanian
class object used as a receiver to an objective-c pointer via a converwsion function. wip. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103672 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08Don't complain about an __builtin_va_arg expression's result beingDouglas Gregor
unused, since the operation has side effects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103360 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08Don't destroy the data associated with an overload resolution candidate; ↵Douglas Gregor
it's ASTContext-allocated now git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103350 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08Record template argument deduction failures for member functionDouglas Gregor
templates and conversion function templates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103349 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08When printing an overload candidate that failed due to SFINAE, print aDouglas Gregor
specific message that includes the template arguments, e.g., test/SemaTemplate/overload-candidates.cpp:27:20: note: candidate template ignored: substitution failure [with T = int *] typename T::type get_type(const T&); // expected-note{{candidate ... ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103348 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08Improve overload-candidate diagnostic for a function template thatDouglas Gregor
failed because the explicitly-specified template arguments did not match its template parameters, e.g., test/SemaTemplate/overload-candidates.cpp:18:8: note: candidate template ignored: invalid explicitly-specified argument for template parameter 'I' void get(const T&); ^ test/SemaTemplate/overload-candidates.cpp:20:8: note: candidate template ignored: invalid explicitly-specified argument for 1st template parameter void get(const T&); ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103344 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08A leak is better than a double-free while I figure out how to addressDouglas Gregor
this issue. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103343 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08Minor cleanup, and ban copying of OverloadCandidateSets. NoDouglas Gregor
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103342 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08When template argument deduction fails because the call had tooDouglas Gregor
many/too few arguments, use the same diagnostic we use for arity mismatches in non-templates (but note that it's a function template). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103341 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-08When printing a non-viable overload candidate that failed due toDouglas Gregor
conflicting deduced template argument values, give a more specific reason along with those values, e.g., test/SemaTemplate/overload-candidates.cpp:4:10: note: candidate template ignored: deduced conflicting types for parameter 'T' ('int' vs. 'long') const T& min(const T&, const T&); ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103339 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07Reapply the reference-binding patch applied below, along with a fix toDouglas Gregor
ensure that we complete the type when we need to look at constructors during reference binding. When determining whether the two types involved in reference binding are reference-compatible, reference-related, etc., do not complete the type of the reference itself because it is not necessary to determine well-formedness of the program. Complete the type that we are binding to, since that can affect whether we know about a derived-to-base conversion. Re-fixes PR7080. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103283 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07Revert r103220. It seems to be breaking self-hostDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103259 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07When determining whether the two types involved in reference bindingDouglas Gregor
are reference-compatible, reference-related, etc., do not complete the type of the reference itself because it is not necessary to determine well-formedness of the program. Complete the type that we are binding to, since that can affect whether we know about a derived-to-base conversion. Fixes PR7080. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103220 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06Diagnose deprecated/unavailable functions selected by overload resolution.John McCall
Fixes rdar://problem/4232969, or at least the clang parts of it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103191 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06Silence a pedantic GCC warning by making the grouping of && and || explicit.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103141 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-04When instantiating a function that was declared via a typedef, e.g.,Douglas Gregor
typedef int functype(int, int); functype func; also instantiate the synthesized function parameters for the resulting function declaration. With this change, Boost.Wave builds and passes all of its regression tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103025 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-03For the sake of Objective-c++ overload resolution,Fariborz Jahanian
treat argument types of objective-c pointer types which only differ in their protocol qualifiers as the same type (radar 7925668). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102955 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-29When determining a standard conversion sequence involves resolving theDouglas Gregor
address of an overloaded function (or function template), perform that resolution prior to determining the implicit conversion sequence. This resolution is not part of the implicit conversion sequence itself. Previously, we would always consider this resolution to be a function pointer decay, which was a lie: there might be an explicit & in the expression, in which case decay should not occur. This caused the CodeGen assertion in PR6973 (where we created a pointer to a pointer to a function when we should have had a pointer to a function), but it's likely that there are corner cases of overload resolution where this would have failed. Cleaned up the code involved in determining the type that will produced afer resolving the overloaded function reference, and added an assertion to make sure the result is correct. Fixes PR6973. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102650 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-25When copying a temporary object to initialize an entity for which theDouglas Gregor
temporary needs to be bound, bind the copy object. Otherwise, we won't end up calling the destructor for the copy. Fixes Boost.Optional. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102290 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24Add base paths for CK_BaseToDerived and CK_BaseToDerivedMemberPointer.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102261 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24Actually produce base paths for CastExprs of kind CK_DerivedToBase.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102259 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24Pass the base specifiers through to CheckDerivedToBaseConversion. No ↵Anders Carlsson
functionality change yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102250 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24CastExpr should not hold a pointer to the base path. More cleanup.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23Add an InheritancePath parameter to the ImplicitCastExpr constructor.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102218 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Remove dead code.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101920 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-18Bail out early to avoid comparing the internals of two conversion sequences ofBenjamin Kramer
different kinds (aka garbage). This happens if we're comparing a standard conversion sequence to an ambiguous one which have the same KindRank. Found by valgrind. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101717 91177308-0d34-0410-b5e6-96231b3b80d8
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