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2012-07-27Implement resolving of HTML character references (named: &, decimal: *,Dmitri Gribenko
hex: ) during comment parsing. Now internal representation of plain text in comment AST does not contain character references, but the characters themselves. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160891 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-27Final piece of core issue 1330: delay computing the exception specification ofRichard Smith
a defaulted special member function until the exception specification is needed (using the same criteria used for the delayed instantiation of exception specifications for function temploids). EST_Delayed is now EST_Unevaluated (using 1330's terminology), and, like EST_Uninstantiated, carries a pointer to the FunctionDecl which will be used to resolve the exception specification. This is enabled for all C++ modes: it's a little faster in the case where the exception specification isn't used, allows our C++11-in-C++98 extensions to work, and is still correct for C++98, since in that mode the computation of the exception specification can't fail. The diagnostics here aren't great (in particular, we should include implicit evaluation of exception specifications for defaulted special members in the template instantiation backtraces), but they're not much worse than before. Our approach to the problem of cycles between in-class initializers and the exception specification for a defaulted default constructor is modified a little by this change -- we now reject any odr-use of a defaulted default constructor if that constructor uses an in-class initializer and the use is in an in-class initialzer which is declared lexically earlier. This is a closer approximation to the current draft solution in core issue 1351, but isn't an exact match (but the current draft wording isn't reasonable, so that's to be expected). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160847 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-17Implement an optimization for finding the comment that occurs just after aDmitri Gribenko
given declaration. It is based on the observation that during parsing the comment that should be attached to the decl is usually among the last two documentation comments parsed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160400 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-16Related to PR11848 and core-21989: switch ContainsUnexpandedParameterPack fromRichard Smith
being a property of a canonical type to being a property of the fully-sugared type. This should only make a difference in the case where an alias template ignores one of its parameters, and that parameter is an unexpanded parameter pack. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160244 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-13Add a per target max vector alignment field (e.g., 32-byte alignment for x86 ↵Chad Rosier
due to AVX). Currently, if no aligned attribute is specified the alignment of a vector is inferred from its size. Thus, very large vectors will be over-aligned with no benefit. Target owners should set this target max. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160209 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-13Attaching comments to declarations during parsing: handle more Objective-C ↵Dmitri Gribenko
declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160156 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-12[Windows] Use thiscall as the default calling convention for class methods. ↵Timur Iskhodzhanov
PR12785 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160121 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-11Enable comment parsing and semantic analysis to emit diagnostics. A fewDmitri Gribenko
diagnostics implemented -- see testcases. I created a new TableGen file for comment diagnostics, DiagnosticCommentKinds.td, because comment diagnostics don't logically fit into AST diagnostics file. But I don't feel strongly about it. This also implements support for self-closing HTML tags in comment lexer and parser (for example, <br />). In order to issue precise diagnostics CommentSema needs to know the declaration the comment is attached to. There is no easy way to find a decl by comment, so we match comments and decls in lockstep: after parsing one declgroup we check if we have any new, not yet attached comments. If we do -- then we do the usual comment-finding process. It is interesting that this automatically handles trailing comments. We pick up not only comments that precede the declaration, but also comments that *follow* the declaration -- thanks to the lookahead in the lexer: after parsing the declgroup we've consumed the semicolon and looked ahead through comments. Added -Wdocumentation-html flag for semantic HTML errors to allow the user to disable only HTML warnings (but not HTML parse errors, which we emit as warnings in -Wdocumentation). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160078 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06Restrict the set of declaration kinds for which we allow trailing comments.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159878 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06Don't store pointers into a std::vector (RawCommentList::Comments). AlthoughDmitri Gribenko
currently we take address of std::vector's contents only after we finished adding all comments (so no reallocation can happen), this will change in future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159845 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06Use C++ cast.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159830 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06ASTContext.cpp: Appease msvc to cast NULL to typed pointer, or msvc mistakes ↵NAKAMURA Takumi
NULL as int. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159818 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-06Implement AST classes for comments, a real parser for Doxygen comments and aDmitri Gribenko
very simple semantic analysis that just builds the AST; minor changes for lexer to pick up source locations I didn't think about before. Comments AST is modelled along the ideas of HTML AST: block and inline content. * Block content is a paragraph or a command that has a paragraph as an argument or verbatim command. * Inline content is placed within some block. Inline content includes plain text, inline commands and HTML as tag soup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159790 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-04Remove get(V)BaseClassOffsetInBits, the CharUnit functions should be used ↵Benjamin Kramer
instead. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159719 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-01PR13189: va_list broken with precompiled headersMeador Inge
For some targets a structure named __va_list_tag is built to help define the __builtin_va_list type. However, __va_list_tag was not being treated as a predefined type thus causing problems when serializing the AST. This commit fixes that oversight by adding the necessary support to treat __va_list_tag as a predefined type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159508 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-30blocks: fixes a crash when encoding block typeFariborz Jahanian
with argument type of size 0. // rdar://11777609 PR13229. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159477 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29objective-c IRGen: fixes a crash when method type is being mangledFariborz Jahanian
when an argument type size is 0. // rdar://11777609, PR13229 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159472 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28Remove redundant check.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159355 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28Attaching comments to declarations: don't attach comments to implicit ↵Dmitri Gribenko
declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159354 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27Attaching documentation comments to declarations: don't attach a comment to ↵Dmitri Gribenko
a declaration if there is a preprocessor directive between them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159305 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26Implement a lexer for structured comments.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159223 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-21VC9 does not like heterogenous compare function objects.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158936 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-20Restructure how the driver communicates information about theJohn McCall
target Objective-C runtime down to the frontend: break this down into a single target runtime kind and version, and compute all the relevant information from that. This makes it relatively painless to add support for new runtimes to the compiler. Make the new -cc1 flag, -fobjc-runtime=blah-x.y.z, available at the driver level as a better and more general alternative to -fgnu-runtime and -fnext-runtime. This new concept of an Objective-C runtime also encompasses what we were previously separating out as the "Objective-C ABI", so fragile vs. non-fragile runtimes are now really modelled as different kinds of runtime, paving the way for better overall differentiation. As a sort of special case, continue to accept the -cc1 flag -fobjc-runtime-has-weak, as a sop to PLCompatibilityWeak. I won't go so far as to say "no functionality change", even ignoring the new driver flag, but subtle changes in driver semantics are almost certainly not intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158793 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-20Structured comment parsing, first step.Dmitri Gribenko
* Retain comments in the AST * Serialize/deserialize comments * Find comments attached to a certain Decl * Expose raw comment text and SourceRange via libclang git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158771 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Explicitly build __builtin_va_list.Meador Inge
The target specific __builtin_va_list types are now explicitly built instead of injecting strings into the preprocessor input. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158592 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Documentation cleanup: eliminated Doxygen warnings by deleting a doc commentJames Dennett
on ASTContext::CreateTypeSourceInfo that duplicated information from the (more complete) version in ASTContext.h. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158504 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-10PR13064: Store whether an in-class initializer uses direct or copyRichard Smith
initialization, and use that information to produce the right kind of initialization during template instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158288 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
2012-06-07Plug 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
2012-06-06Revert 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
2012-05-20CUDA: add CodeGen support for global variable address spaces.Peter Collingbourne
Because in CUDA types do not have associated address spaces, globals are declared in their "native" address space, and accessed by bitcasting the pointer to address space 0. This relies on address space 0 being a unified address space. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157167 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-17Added two missing const qualifiers.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156988 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-04Fix handling of wint_t - we can't assume wint_t is purely an integer ↵James Molloy
promotion of wchar_t - they may differ in signedness. Teach ASTContext about WIntType, and have it taken from TargetInfo like WCharType. Should fix test/Sema/format-strings.c for ARM, with the exception of one subtest which will fail if wint_t and wchar_t are the same size and wint_t is signed, wchar_t is unsigned. There'll be a followup commit to fix that. Reviewed by Chandler and Hans at http://llvm.org/reviews/r/8 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156165 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-30Remove the ref/value inconsistency in filter_decl_iterator.David Blaikie
filter_decl_iterator had a weird mismatch where both op* and op-> returned T* making it difficult to generalize this filtering behavior into a reusable library of any kind. This change errs on the side of value, making op-> return T* and op* return T&. (reviewed by Richard Smith) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155808 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-27When @encode'ing a C++ class that has empty base classes, we can endDouglas Gregor
up with gaps when the class inherits from the same empty base class more than once. Fixes <rdar://problem/11324167>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155738 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19PR 12586: Fix assert while running libc++ testsuite: deal with exceptionRichard Smith
specifications on member function templates of class templates and other such nested beasties. Store the function template from which we are to instantiate an exception specification rather than trying to deduce it. Plus some additional test cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155076 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-17Implement DR1330 in C++11 mode, to support libstdc++4.7 which uses it.Richard Smith
We have a new flavor of exception specification, EST_Uninstantiated. A function type with this exception specification carries a pointer to a FunctionDecl, and the exception specification for that FunctionDecl is instantiated (if needed) and used in the place of the function type's exception specification. When a function template declaration with a non-trivial exception specification is instantiated, the specialization's exception specification is set to this new 'uninstantiated' kind rather than being instantiated immediately. Expr::CanThrow has migrated onto Sema, so it can instantiate exception specs on-demand. Also, any odr-use of a function triggers the instantiation of its exception specification (the exception specification could be needed by IRGen). In passing, fix two places where a DeclRefExpr was created but the corresponding function was not actually marked odr-used. We used to get away with this, but don't any more. Also fix a bug where instantiating an exception specification which refers to function parameters resulted in a crash. We still have the same bug in default arguments, which I'll be looking into next. This, plus a tiny patch to fix libstdc++'s common_type, is enough for clang to parse (and, in very limited testing, support) all of libstdc++4.7's standard headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154886 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-16objective-c modern translator: buildit objc boolFariborz Jahanian
type for rewriter project will be BoolTy. // rdar://11231426. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154861 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-06Implement support for null non-type template arguments for non-typeDouglas Gregor
template parameters of pointer, pointer-to-member, or nullptr_t type in C++11. Fixes PR9700 / <rdar://problem/11193097>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154219 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-22Fix a comment: kPropertyType = 'T' not 't'. <rdar://problem/11095729>Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153264 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-21Report the natural alignment of unsigned long long, not the preferred alignment.Chad Rosier
rdar://11054144 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153216 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-09[AST] Memoize ASTContext::getTypeInfo().Daniel Dunbar
- On -emit-llvm-only of 403.gcc/combine.c, for example, we make 160k calls to getTypeInfo but only ever deal with 680 some distinct types. I saw these speedups (user time): 403.gcc/combine.c -- 3.1% OmniGroupFrameworks/NSBezierPath-OAExtensions.m -- 3.6% JavaScriptCore/Interpreter.cpp -- 1.4% which seems pretty sweet. I ran some histograms on those compiles and we end up doing a ton of getTypeInfo() on 'char' and 'int'. I tried splitting out a fast path for builtin types, but this wasn't a win. Still kinda seems like we could be doing better here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152377 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Make sure we consistently canonicalize types when canonicalizing ↵Eli Friedman
TemplateTemplateParmDecls. PR12179. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152189 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-06Add clang support for new Objective-C literal syntax for NSDictionary, NSArray,Ted Kremenek
NSNumber, and boolean literals. This includes both Sema and Codegen support. Included is also support for new Objective-C container subscripting. My apologies for the large patch. It was very difficult to break apart. The patch introduces changes to the driver as well to cause clang to link in additional runtime support when needed to support the new language features. Docs are forthcoming to document the implementation and behavior of these features. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152137 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-06Use TinyPtrVector instead of UsuallyTinyPtrVector.Argyrios Kyrtzidis
The latter is just a worse version of the former. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152096 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-05Properly handle non-canonical underlying types inPeter Collingbourne
ASTContext::getUnaryTransformType. This can happen if, for example, an enumeration's underlying type is a typedef. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152031 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-03Avoid an unnecessary recursive loop between type canonicalization and NNS ↵Eli Friedman
canonicalization which would (rarely) lead to memory corruption. While I'm here, simplify. Fixes PR12166. Not committing a testcase because it's impossible to reduce it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151967 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Basic support for name mangling of C++11 lambda expressions. BecauseDouglas Gregor
name mangling in the Itanium C++ ABI for lambda expressions is so dependent on context, we encode the number used to encode each lambda as part of the lambda closure type, and maintain this value within Sema. Note that there are a several pieces still missing: - We still get the linkage of lambda expressions wrong - We aren't properly numbering or mangling lambda expressions that occur in default function arguments or in data member initializers. - We aren't (de-)serializing the lambda numbering tables git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150982 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-12Within the body of a lambda expression, decltype((x)) for anDouglas Gregor
id-expression 'x' will compute the type based on the assumption that 'x' will be captured, even if it isn't captured, per C++11 [expr.prim.lambda]p18. There are two related refactors that go into implementing this: 1) Split out the check that determines whether we should capture a particular variable reference, along with the computation of the type of the field, from the actual act of capturing the variable. 2) Always compute the result of decltype() within Sema, rather than AST, because the decltype() computation is now context-sensitive. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150347 91177308-0d34-0410-b5e6-96231b3b80d8
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