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2010-04-12Implement C++ [temp.local]p4, which specifies how we eliminateDouglas Gregor
name-lookup ambiguities when there are multiple base classes that are all specializations of the same class template. This is part of a general cleanup for ambiguities in template-name lookup. Fixes PR6717. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101065 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12fix PR6819Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101050 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12When creating the implicitly-declared special member functions, beDouglas Gregor
sure to introduce them into the current Scope (when we have one) in addition to the DeclContext for the class, so that they can be found by name lookup for inline members of the class. Fixes PR6570. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12Issue warning when 'weak_import' attribute is applied on a class onlyFariborz Jahanian
when it is not supported in versions of MacOs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101044 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12Fix a crash-on-invalid involving name lookup of tag names, where weDouglas Gregor
ended up finding a function template that we didn't expect. Recover more gracefully, and fix a similar issue for class templates. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101040 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12Be sure to instantiate the parameters of a function, even when theDouglas Gregor
function's type is (strictly speaking) non-dependent. This ensures that, e.g., default function arguments get instantiated properly. And, since I couldn't resist, collapse the two implementations of function-parameter instantiation into calls to a single, new function (Sema::SubstParmVarDecl), since the two had nearly identical code (and each had bugs the other didn't!). More importantly, factored out the semantic analysis of a parameter declaration into Sema::CheckParameter, which is called both by Sema::ActOnParamDeclarator (when parameters are parsed) and when a parameter is instantiated. Previously, we were missing some Objective-C and address-space checks on instantiated function parameters. Fixes PR6733. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101029 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12change Scope::WithinElse to be a normal scope flag, widen theChris Lattner
fields to two 16-bit values instead of using bitfields. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101020 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12Have the parser decide whether a message to super is a variable orChris Lattner
type, instead of having sema do it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101016 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12fix a fixme, stop evaluating getCurMethodDecl() repeatedly Chris Lattner
in "LookupInObjCMethod". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101014 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-12Have the CXXBaseOrMemberInitializer keep track of whether an initializer ↵Anders Carlsson
initializes a virtual base or not. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101004 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-11fix PR6811 by not parsing 'super' as a magic expression inChris Lattner
LookupInObjCMethod. Doing so allows all sorts of invalid code to slip through to codegen. This patch does not change the AST representation of super, though that would now be a natural thing to do since it can only be in the receiver position and in the base of a ObjCPropertyRefExpr. There are still several ugly areas handling super in the parser, but this is definitely a step in the right direction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100959 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-11actually the interface grossness in the previous patch was due toChris Lattner
typo correction. However, now that the code has been factored out of LookupMemberExpr, it can recurse to itself instead of to LookupMemberExpr! Remove grossness. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100958 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-11factor the code that handles "expr.field" when expr is aChris Lattner
pointer to an objc interface out to a method in SemaExprObjC. This is *much* uglier than it should be due to grossness in LookupMemberExpr :( git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100957 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-11fix a problem causing us to lose the ''s around objc interface namesChris Lattner
in a diagnostic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100956 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10When a member pointer is dereferenced, the class it points into must be ↵Sebastian Redl
complete. Enforce this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100925 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10Diagnose more cases of initializing distinct members of an anonymous unionJohn McCall
member. Use a better diagnostic for this case. Also fix a bug with nested anonymous structs/unions for -Wreorder; this last was PR6575. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100923 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10Diagnose misordered initializers in constructor templates immediately instead ofJohn McCall
when they're instantiated. Merge the note into the -Wreorder warning; it doesn't really contribute much, and it was splitting a thought across diagnostics anyway. Don't crash in the parser when a constructor's initializers end in a comma and there's no body; the recovery here is still terrible, but anything's better than a crash. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100922 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09When upgrading an Objective-C class from a forward declaration to aDouglas Gregor
full-fledged @interface, be sure that the declaration has the right lexical context. <rdar://problem/7827709> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100903 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Only complain about explicit instantiations following explicitDouglas Gregor
specializations when the explicit instantiation was... explicitly written, i.e., not the product of an explicit instantiation of an enclosing class. Fixes this spurious warning when Clang builds LLVM: /Volumes/Data/dgregor/Projects/llvm/lib/CodeGen/MachineDominators.cpp:22:1: warning: explicit instantiation of 'addRoot' that occurs after an explicit specialization will be ignored (C++0x extension) [-pedantic] git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Remove fixit for string literal comparison. Telling the user to use ↵Ted Kremenek
'strcmp' is bad, and we don't have enough information to tell them how to use 'strncmp'. Instead, change the diagnostic to indicate they should use 'strncmp'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100890 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Suppress access control diagnostics when looking up a base or member nameJohn McCall
fails to find a type. There are no cases where it's valid for this to produce an error. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100878 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Remove all "used" static functions *after* we have performed all ofDouglas Gregor
the implicit template instantiations we need to perform. Otherwise, we end up erroneously diagnosing static functions as used if they were only used within an implicit template instantiation. Fixes a bunch of spurious failures when building Clang with Clang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100872 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Instantiate default argument expressions even if their associated parameterJohn McCall
type isn't dependent. Fixes rdar://problem/7838962. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100871 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Don't warn about unused static functions if they are marked with Chris Lattner
attr constructor or destructor. Patch by Jean-Daniel Dupas! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Fixes a regression caused by implementing cstyle methods Fariborz Jahanian
for objc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100865 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Improve diagnostics when we fail to convert from a source type to aDouglas Gregor
destination type for initialization, assignment, parameter-passing, etc. The main issue fixed here is that we used rather confusing wording for diagnostics such as t.c:2:9: warning: initializing 'char const [2]' discards qualifiers, expected 'char *' [-pedantic] char *name = __func__; ^ ~~~~~~~~ We're not initializing a 'char const [2]', we're initializing a 'char *' with an expression of type 'char const [2]'. Similar problems existed for other diagnostics in this area, so I've normalized them all with more precise descriptive text to say what we're initializing/converting/assigning/etc. from and to. The warning for the code above is now: t.c:2:9: warning: initializing 'char *' from an expression of type 'char const [2]' discards qualifiers [-pedantic] char *name = __func__; ^ ~~~~~~~~ Fixes <rdar://problem/7447179>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100832 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Downgrade the "declaration does not declare anything" error to aDouglas Gregor
warning. It's not harmful to have such pointless declarations, and GCC does not diagnose this issue consistently. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100814 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Implement method type encoding in the presenseFariborz Jahanian
of c-style arguments. Completes radar 7445205. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100813 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Explain that a template needs arguments to make it into a type, forJeffrey Yasskin
variable declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100809 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Set access properly on instantiated friend class template declarations.John McCall
Fixes PR6752. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100806 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Remove micro-optimization for not issueing CFG-based warnings for 'static ↵Ted Kremenek
inline' functions unless they are used. I discussed this with Daniel Dunbar, and we agreed that this provides an inconsistent warnings experience for the user and that there were genuine cases where we wouldn't want to do this optimization. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100800 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Introduce an egregious hack to work around a bug in libstdc++ 4.2.x'sDouglas Gregor
<tr1/hashtable> header, where a friend class template std::tr1::__detail::_Map_base is declared with the wrong template parameters. GCC doesn't catch the problem, so Clang does a little back-flip to avoid diagnosing just this one instance of the problem. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100790 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Make CXXScopeSpec invalid when incomplete, and propagate that into anyJeffrey Yasskin
Declarator that depends on it. This fixes several redundant errors and bad recoveries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100779 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Implement dependent friend function template specializations.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100753 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Removed unused object.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100750 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Fronted: Kill overly specialized RecordLayoutDumper, just make ↵Daniel Dunbar
-dump-record-layouts a bit that Sema honors. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100747 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Patch to implement gcc's cstyle arguments in objcFariborz Jahanian
methods. wip. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100734 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Fix a (bogus) uninitialized-member-of-local warning.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100732 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08Use SmallVector instead of an std::queue.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100730 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-08When a template (without arguments) is passed as a template typeJeffrey Yasskin
parameter, explicitly ask the user to give it arguments. We used to complain that it wasn't a type and expect the user to figure it out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100729 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Fix some redundant errors by changing CXXScopeSpec::isSet calls intoJeffrey Yasskin
isNotEmpty calls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100722 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Implement checking for template literal operator functions. ThisSean Hunt
code won't actually get used yet because we don't handle non-type parameter packs, but when we do, this code should jump in and work. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100716 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Updated comment to reflect changes made in the most recent draft.Sean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100707 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Fixed 80-cols violationSean Hunt
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100704 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Return early from Sema::MarkDeclarationReferenced when we know thereDouglas Gregor
isn't any extra work to perform. Also, don't check for unused parameters when the warnings will be suppressed anyway. Improves performance of -fsyntax-only on 403.gcc's combine.c by ~2.5%. <rdar://problem/7836787> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100686 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Improve handling of friend types in several ways:Douglas Gregor
- When instantiating a friend type template, perform semantic analysis on the resulting type. - Downgrade the errors concerning friend type declarations that do not refer to classes to ExtWarns in C++98/03. C++0x allows practically any type to be befriended, and ignores the friend declaration if the type is not a class. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100635 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Split Sema::ActOnFriendTypeDecl into Sema::CheckFriendTypeDecl (forDouglas Gregor
semantic analysis) and Sema::ActOnFriendTypeDecl (the action callback). This is a prerequisite for improving template instantiation of friend type declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100633 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Teach -Wsign-compare to treat 1 << blah as "idiomatically non-negative".John McCall
Fixes a spurious warning in LLVM. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100595 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Check access for the implicit calls to destructors that occur when weJohn McCall
have a temporary object in C++. Also fix a tag mismatch that Doug noticed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100593 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07Implement code completion for Objective-C method declarations andDouglas Gregor
definitions, e.g., after - or - (id) we'll find all of the "likely" instance methods that one would want to declare or define at this point. In the latter case, we only produce results whose return types match "id". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100587 91177308-0d34-0410-b5e6-96231b3b80d8