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2010-03-26When deducing an integral template argument for a non-type templateDouglas Gregor
parameter, keep the integral value exactly as it was in the source code rather than trying to convert it to the type of the non-type template parameter (which may still be dependent!). The value will then be converted to the appropriate type once we check the resulting template arguments. Fixes PR6707. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99611 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26Reapply r99596 with a fix: link an instantiated friend function to itsJohn McCall
pattern if it has a body. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99610 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26Apparently that didn't work. Reverting for now.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99601 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26Reinstate change to non-type template arguments of integral type, soDouglas Gregor
that we extend/truncate then correct the sign to convert the non-type template argument to the template parameter's type. Previously, we reported an error when the non-type template argument was out of range; now we just warn. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99600 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26Properly instantiate and link in friend function templates.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99596 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26Revert attempted fix for integral template arguments. It seems to have ↵Douglas Gregor
broken tramp3d-v4. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99583 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26Mark virtual methods that are used in tables included in VTTs as used.Rafael Espindola
Fixes PR6706. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99582 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Warn when the conversion of an integral non-type template argument toDouglas Gregor
the type of its corresponding non-type template parameter changes the value. Previously, we were diagnosing this as an error, which was wrong. We give reasonably nice warnings like: test/SemaTemplate/temp_arg_nontype.cpp:100:10: warning: non-type template argument value '256' truncated to '0' for template parameter of type 'unsigned char' Overflow<256> *overflow3; // expected-warning{{non-type template ... ^~~ test/SemaTemplate/temp_arg_nontype.cpp:96:24: note: template parameter is declared here template<unsigned char C> struct Overflow; ^ git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99561 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Teach the diagnostic engine to provide more detailed information aboutDouglas Gregor
how to handle a diagnostic during template argument deduction, which may be "substitution failure", "suppress", or "report". This keeps us from, e.g., emitting warnings while performing template argument deduction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99560 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25When finishing a function definition, leave the function definition *after*John McCall
doing all the cleanup tasks and checks. This gives us the proper context for checking access to base and member destructors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99559 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Fix a very minor oversight in privileges-elevation: we were only consideringJohn McCall
friendship for a derived class if the base class specifier was non-public, and thus not considering friendship for non-public members of public bases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99554 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Handle simple friend-class decls in class templates better by ensuring thatJohn McCall
we look for shadow friend decls in the appropriate scope before injecting a new declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99552 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Preserve type-source information in friend declarations.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99525 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Remove support for nand atomic builtins. They are inconsistently implemented inDaniel Dunbar
gcc, and the common expectation seems to be that they are unused. If and when someone cares we can add them back with well documented demantics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99522 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Improve our handling of local instantiation scopes in two related ways:Douglas Gregor
- When substituting template arguments as part of template argument deduction, introduce a new local instantiation scope. - When substituting into a function prototype type, introduce a new "temporary" local instantiation scope that merges with its outer scope but also keeps track of any additions it makes, removing them when we exit that scope. Fixes PR6700, where we were getting too much mixing of local instantiation scopes due to template argument deduction that substituted results into function types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Properly instantiate friend class template declarations and link them intoJohn McCall
the redeclaration chain. Recommitted from r99477 with a fix: we need to merge in default template arguments from previous declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Revert 99477 since it appears to be breaking the clang-x86_64-darwin10-fntBob Wilson
buildbot. The tramp3d test fails. --- Reverse-merging r99477 into '.': U test/SemaTemplate/friend-template.cpp U test/CXX/temp/temp.decls/temp.friend/p1.cpp U lib/Sema/SemaTemplateInstantiateDecl.cpp U lib/Sema/SemaAccess.cpp git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Fix two bugs in format-string checking:Ted Kremenek
(1) Do not assume the data arguments start after the format string (2) Do not use the fact that a function is variadic to treat it like a va_list printf function Fixes PR 6697. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99480 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Properly instantiate and link in friend-class-template declarations.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99477 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25Kill off two more uses of Sema::CheckReferenceInit in favor of the newDouglas Gregor
initialization code. Exposed a bug where we were not marking an implicit conversion as an lvalue when we were forming a call to a conversion function whose return type is a reference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Switch static_cast from the old reference-initialization code (viaDouglas Gregor
CheckReferenceInit) over to the new initialization code (InitializationSequence), which is better-tested and doesn't require us to compute the entire conversion sequence twice. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24When pulling apart an initializer that involves a CXXConstructExpr, doDouglas Gregor
not pick apart a CXXTemporaryObjectExpr because such an object construction was explicitly written in the source code. Fixes PR6657. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99427 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Allow conversion of qualified Class type to unqualifiedFariborz Jahanian
Class type to match gcc's. Fixes radar 7789113. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99425 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Improve diagnostics when ivar added to classFariborz Jahanian
extension (radar 6812436). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99408 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Silently drop dependent friend function template specializations,Douglas Gregor
since we have absolutely no way to match them when they are declared nor do we have a way to represent these parsed-but-not-checked friend declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99407 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Walk out of enums when determining effective context.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99391 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Correct that last fixit: if the user wroteJohn McCall
template <> friend void foo(int); we need to change it to friend void foo<>(int); or else the user won't get the template specialization they obviously want. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Support friend function specializations.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99389 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24When a declaration of a function is missing an exception specificationDouglas Gregor
that was present in a prior declaration, emit a warning rather than a hard error (which we did before, and still do with mismatched exception specifications). Moreover, provide a fix-it hint with the throw() clause that should be added, e.g., t.C:10:7: warning: 'operator new' is missing exception specification 'throw(std::bad_alloc)' void *operator new(unsigned long sz) ^ throw(std::bad_alloc) As part of this, disable the warning when we're missing an exception specification on operator new, operator new[], operator delete, or operator delete[] when exceptions are turned off (-fno-exceptions). Fixes PR5957. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99388 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Implement a framework for the delay of arbitrary diagnostics withinJohn McCall
templates. So delay access-control diagnostics when (for example) the target of a friend declaration is a specific specialization of a template. I was surprised to find that this was required for an access-controlled selfhost. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99383 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24When performing name lookup for the allocation or deallocationDouglas Gregor
operators, make sure that the implicitly-declared global new and delete operators are always available. Fixes PR5904. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99382 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Each non-local class instantiation is its own local instantiationDouglas Gregor
scope. Fixes PR6619. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Make sure to properly track the anonymous namespace that lives insideDouglas Gregor
each namespace, even when the outer namespace has multiple definitions. As part of this, collapsed two pointers worth of storage (original namespace and inner anonymous namespace) into a single pointer with a distinguishing bit, since the two are mutually exclusive, saving a pointer per NamespaceDecl. Fixes PR6620. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99368 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Implement computation of the final overriders for each virtualDouglas Gregor
function within a class hierarchy (C++ [class.virtual]p2). We use the final-overrider computation to determine when a particular class is ill-formed because it has multiple final overriders for a given virtual function (e.g., because two virtual functions override the same virtual function in the same virtual base class). Fixes PR5973. We also use the final-overrider computation to determine which virtual member functions are pure when determining whether a class is abstract or diagnosing the improper use of an abstract class. The prior approach to determining whether there were any pure virtual functions in a class didn't cope with virtual base class subobjects properly, and could not easily be fixed to deal with the oddities of subobject hiding. Fixes PR6631. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99351 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23revert 99311. Looks like it broke darwin bootstrap.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99317 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Improve diagnostic for @property/ivar type mismatch by including the types ↵Ted Kremenek
of the ivar and @property respectively. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99312 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Avoid producing implicit methods when we have a explicit template instantiationRafael Espindola
declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99311 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23When recovering from a qualified typedef name, don't clear out theDouglas Gregor
DeclContext because we don't want a NULL DeclContext. Instead, use the current context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99281 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Ignore a more comprehensive set of gcc-special format attributes.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99277 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23For forward-declared static inline functions, delay CFG-based warnings until weTed Kremenek
encounter a definition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99243 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Only perform CFG-based warnings on 'static inline' functions thatTed Kremenek
are called (transitively) by regular functions/blocks within a translation untion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99233 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22Set the relevent attributes declared in class extensionFariborz Jahanian
and fix a missing diagnostics on assigning to a read-only property. Fixes radar 7766184. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99230 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22A fixed version of r99174 which also includes a test that we emit vtables whenRafael Espindola
we see an specialization definition ever if we then see a extern template declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22(re)implement PR6542, accepting and discarding the __gcc_tdiag__Chris Lattner
format attribute specifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99213 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22Diagnose miuse of property dot-syntax instead of crashing.Fariborz Jahanian
(radar 7634653). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99210 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22Fixes access rues for ivars declared in classFariborz Jahanian
implementations (radar 7547942). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99198 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22revert r99174. It caused PR6677. Will try to debug why tonight.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99188 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22When handling a TSK_ExplicitInstantiationDefinition after aRafael Espindola
TSK_ExplicitInstantiationDeclaration make sure we call MaybeMarkVirtualMembersReferenced with a method attached to the definition. Remove the hack that forced vtable emition with declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99174 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22-Wshadow should only warn about parameter declarations when we'reJohn McCall
entering a function or block definition, not on every single declaration. Unfortunately we don't have previous-lookup results around when it's time to make this decision, so we have to redo the lookup. The alternative is to use delayed diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99172 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-21Fix PR6618.Rafael Espindola
If a struct has an invalid field, mark it as invalid. Also avoid producing errors about incomplete types that are invalid. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99150 91177308-0d34-0410-b5e6-96231b3b80d8