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2012-01-03Test "merging" of typedef types across distinct modules. At present,Douglas Gregor
the AST reader doesn't actually perform a merge, because name lookup knows how to merge identical typedefs together. As part of this, teach C/Objective-C name lookup to return multiple results in all cases, rather than first digging through the attributes to see if the value is overloadable. This way, we'll catch ambiguous lookups in C/Objective-C. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147498 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-03Introduce a non-uglified syntax for module imports in Objective-C:Douglas Gregor
@import identifier [. identifier]* ; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147452 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-02Small cosmetic cleanups in code I will change anyway.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147424 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-01Eliminate ObjCForwardProtocolDecl, which is redundant now thatDouglas Gregor
ObjCProtocolDecl modules forward declarations properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147415 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-01Consider visibility attributes in namespaces as being explicit. I.e., theyRafael Espindola
take precedence over command line options. Fixes PR10113. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147405 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-01Replace a isa+cast with a dyn_cast.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147401 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-27Fix the visibility of methods of explicit template instantiation definitionRafael Espindola
when using -fvisibility-inlines-hidden. This matches gcc's behavior and documentation. Fixes PR11642. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147295 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-21C++11 half of r147023: In C++11, additionally eagerly instantiate:Richard Smith
- constexpr function template instantiations - variables of reference type - constexpr variables git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147031 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-20Unweaken vtables as per ↵David Blaikie
http://llvm.org/docs/CodingStandards.html#ll_virtual_anch git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-19constexpr handling improvements. Produce detailed diagnostics when a 'constexpr'Richard Smith
variable is initialized by a non-constant expression, and pass in the variable being declared so that earlier-initialized fields' values can be used. Rearrange VarDecl init evaluation to make this possible, and in so doing fix a long-standing issue in our C++ constant expression handling, where we would mishandle cases like: extern const int a; const int n = a; const int a = 5; int arr[n]; Here, n is not initialized by a constant expression, so can't be used in an ICE, even though the initialization expression would be an ICE if it appeared later in the TU. This requires computing whether the initializer is an ICE eagerly, and saving that information in PCH files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146856 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-03Keep track of all of the import declarations that are parsed orDouglas Gregor
implicitly generated in a translation unit. Modules will need this information to identify the actual imports that occurred. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145734 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02When we treat an #include or #import as a module import, create anDouglas Gregor
implicit ImportDecl in the translation unit to record the presence of the import. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145727 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-02Introduce a module import declaration, so that we properly represent, e.g.,Douglas Gregor
__import_module__ std.vector; in the AST. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145725 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-01ParmVarDecls have no linkage. Previously we would report that parametersArgyrios Kyrtzidis
in type signatures have external linkage. Fixes rdar://10058317. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145551 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-01Further tweak -Wurneachable-code and templates by allowing the warning to run onTed Kremenek
explicit template specializations (which represent actual functions somebody wrote). Along the way, refactor some other code which similarly cares about whether or not they are looking at a template instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145547 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-10Constant expression evaluation: support for evaluation of structs and unions ofRichard Smith
literal types, as well as derived-to-base casts for lvalues and derived-to-virtual-base casts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144265 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-10There's no good reason to track temporaries in ExprWithCleanups,John McCall
but it is sometimes useful to track blocks. Do so. Also optimize the storage of these expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144263 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-08From Vassil Vassilev: add checks for removing Decls for more use cases.Axel Naumann
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144094 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-14Change operator<< for raw_ostream and NamedDecl to take a reference instead ↵Benjamin Kramer
of a pointer. Passing a pointer was a bad idea as it collides with the overload for void*. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141971 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11PR11062: Make C99 inlining work properly for names with associated builtin ↵Eli Friedman
libcalls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141723 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-10Constant expression evaluation refactoring:Richard Smith
- Remodel Expr::EvaluateAsInt to behave like the other EvaluateAs* functions, and add Expr::EvaluateKnownConstInt to capture the current fold-or-assert behaviour. - Factor out evaluation of bitfield bit widths. - Fix a few places which would evaluate an expression twice: once to determine whether it is a constant expression, then again to get the value. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141561 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-07In DeclContext::LoadLexicalDeclsFromExternalStorage don't clear outArgyrios Kyrtzidis
the fields if they are already loaded, just ignore them when we are building the chain in BuildDeclChain. This fixes an lldb issue where fields were removed and not getting re-added because lldb is based on ASTImporter adding decls to DeclContext and fields were already added before by the ASTImporter. We should really simplify the interaction between DeclContext <-> lldb going forward.. rdar://10246067 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141418 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-07Rename TagDecl::isDefinition -> isCompleteDefinitionJohn McCall
for better self-documenting code, since the semantics are subtly different from getDefinition(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141355 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06Use a sidetable in ASTContext for ParmVarDecls whose index exceeds the 8 ↵Ted Kremenek
bits reserved for that value in VarDecl. Fixes PR 10538. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141273 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23Removing a bunch of dead returns/breaks after llvm_unreachables.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140407 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-23Switch assert(0/false) llvm_unreachable.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140367 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-22Don't use TemplateArgumentListInfo inside AST nodes because it may leak.Argyrios Kyrtzidis
Use ASTTemplateArgumentListInfo instead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140331 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-21ArrayRef-ifying Function/BlockDecl's setParamsDavid Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140268 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20Remove redundant break statements, and replace asserts with llvm_unreachablePeter Collingbourne
Per John's review comments for r140068. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140142 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19OpenCL: introduce support for function scope __local variablesPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Extend the ASTContext constructor to delay the initialization ofDouglas Gregor
builtin types (When requested). This is another step toward making ASTUnit build the ASTContext as needed when loading an AST file, rather than doing so after the fact. No actual functionality change (yet). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17Fix else style. No functionality change intended.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137896 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Track in the AST whether a function is constexpr.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137653 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-14Implement function template specialization at class scope extension in ↵Francois Pichet
Microsoft mode. A new AST node is introduced: ClassScopeFunctionSpecialization. This node holds a FunctionDecl that is not yet specialized; then during the class template instantiation the ClassScopeFunctionSpecialization will spawn the actual function specialization. Example: template <class T> class A { public: template <class U> void f(U p) { } template <> void f(int p) { } // <== class scope specialization }; This extension is necessary to parse MSVC standard C++ headers, MFC and ATL code. BTW, with this feature in, clang can parse (-fsyntax-only) all the MSVC 2010 standard header files without any error. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137573 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-05Fixed FieldDecl source range.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136963 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30Not sure why we bother updating FunctionDecl's EndRangeLoc in ↵Argyrios Kyrtzidis
FunctionDecl::setParams. EndRangeLoc should always be set to at least the ending paren or brace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136573 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30[libclang] Annotation of parameters that got default args from a previous ↵Argyrios Kyrtzidis
declarations was broken because the end location of the parameter was the end location of the default arg, resulting in a source range that could begin in one file and end in another. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136572 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner
LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18Don't crash when codegen'ing an empty redecl of a function in C99 mode, whenNick Lewycky
neither was inline. Fixes bug introduced in r135377. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135380 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18In C99, emit an inline function when encountering an extern redeclaration.Nick Lewycky
Fixes PR10233! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135377 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15Augment the interface of ExternalASTSource::FindExternalLexicalDecls()Douglas Gregor
to allow clients to specify that they've already (correctly) loaded declarations, and that no further action is needed. Also, make sure that we clear the "has external lexical declarations" bit before calling FindExternalLexicalDecls(), to avoid infinite recursion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135306 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07r134634 causes a failure on MultiSource/Benchmarks/Olden/bh with TEST=nightly,Cameron Zwarich
so roll it out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134638 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07A redeclaration of an inline method in C99 mode should trigger emission of thatNick Lewycky
function. Fixes PR10233! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134634 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27Don't factor in visibility for templates and template argumentsJohn McCall
for explicit specializations with their own explicit visibility. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133958 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21A few tweaks to MaterializeTemporaryExpr suggested by John.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133528 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Introduce a new AST node describing reference binding to temporaries.Douglas Gregor
MaterializeTemporaryExpr captures a reference binding to a temporary value, making explicit that the temporary value (a prvalue) needs to be materialized into memory so that its address can be used. The intended AST invariant here is that a reference will always bind to a glvalue, and MaterializeTemporaryExpr will be used to convert prvalues into glvalues for that binding to happen. For example, given const int& r = 1.0; The initializer of "r" will be a MaterializeTemporaryExpr whose subexpression is an implicit conversion from the double literal "1.0" to an integer value. IR generation benefits most from this new node, since it was previously guessing (badly) when to materialize temporaries for the purposes of reference binding. There are likely more refactoring and cleanups we could perform there, but the introduction of MaterializeTemporaryExpr fixes PR9565, a case where IR generation would effectively bind a const reference directly to a bitfield in a struct. Addresses <rdar://problem/9552231>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-16Move computation of __private_extern__ visibilty toFariborz Jahanian
getLVForNamespaceScopeDecl(). // rdar://9609649 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133182 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Introduce a utility routine for checking whether a block's capturesJohn McCall
include a specific variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133102 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Implement support for C++11 in-class initialization of non-static data members.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132878 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02Implement -fgnu89-inline. Fixes PR10041.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132460 91177308-0d34-0410-b5e6-96231b3b80d8