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2011-01-07Update AST reader/writer to handle new AppleKext.Fariborz Jahanian
Fix an unexpected hickup caused by exceeding size of generated table (and a misleading comment). Improve on help message for -fapple-kext. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123003 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-06Introduce an AttributedType, but don't actually use it anywhere yet.John McCall
The initial TreeTransform is a cop-out, but it's more-or-less equivalent to what we were doing before, or rather what we're doing now and might eventually stop doing in favor of using this type. I am simultaneously intrigued by the possibilities of rebuilding a dependent Attri git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122942 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-05Replace the representation of template template argument packDouglas Gregor
expansions with something that is easier to use correctly: a new template argment kind, rather than a bit on an existing kind. Update all of the switch statements that deal with template arguments, fixing a few latent bugs in the process. I"m happy with this representation, now. And, oh look! Template instantiation and deduction work for template template argument pack expansions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122896 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-05Add semantic analysis for the creation of and an AST representationDouglas Gregor
for template template argument pack expansions. This allows fun such as: template<template<class> class ...> struct apply_impl { /*...*/ }; template<template<class> class ...Metafunctions> struct apply { typedef typename apply_impl<Metafunctions...>::type type; }; However, neither template argument deduction nor template instantiation is implemented for template template argument packs, so this functionality isn't useful yet. I'll probably replace the encoding of template template argument pack expansions in TemplateArgument so that it's harder to accidentally forget about the expansion. However, this is a step in the right general direction. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122890 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-05Implement support for template template parameter packs, e.g.,Douglas Gregor
template<template<class> class ...Metafunctions> struct apply_to_each; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122874 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-04Implement the sizeof...(pack) expression to compute the length of aDouglas Gregor
parameter pack. Note that we're missing proper libclang support for the new SizeOfPackExpr expression node. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122813 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-04Implement pack expansion of base initializers, so that we canDouglas Gregor
initialize those lovely mixins that come from pack expansions of base specifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122793 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-03Implement pack expansions whose pattern is a base-specifier.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122782 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-03In the latest episode of "Deserializing bugs caused by accessors" the series ↵Argyrios Kyrtzidis
reached a thrilling climax when FunctionDecl::setPure crashed a poor user's code. Remove the use of this accessor when deserializing, along with several other in the neighborhood. Fixes rdar://8759653. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122756 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-03Implement support for pack expansions whose pattern is a non-typeDouglas Gregor
template argument (described by an expression, of course). For example: template<int...> struct int_tuple { }; template<int ...Values> struct square { typedef int_tuple<(Values*Values)...> type; }; It also lays the foundation for pack expansions in an initializer-list. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122751 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-25The -fshort-wchar option causes wchar_t to become unsigned, in addition to beingChris Lattner
16-bits in size. Implement this by splitting WChar into two enums, like we have for char. This fixes a miscompmilation of XULRunner, PR8856. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122558 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23Add an AST representation for non-type template parameterDouglas Gregor
packs, e.g., template<typename T, unsigned ...Dims> struct multi_array; along with semantic analysis support for finding unexpanded non-type template parameter packs in types, expressions, and so on. Template instantiation involving non-type template parameter packs probably doesn't work yet. That'll come soon. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122527 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23Add -fobjc-default-synthesized-properties flagTed Kremenek
to allow us to explicitly control whether or not Objective-C properties are default synthesized. Currently this feature only works when using the -fobjc-non-fragile-abi2 flag (so there is no functionality change), but we can now turn off this feature without turning off all the features coupled with -fobjc-non-fragile-abi2. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122519 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21Replace all uses of PathV1::makeAbsolute with PathV2::fs::make_absolute.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122340 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20Introduce a new type, PackExpansionType, to capture types that areDouglas Gregor
pack expansions, e.g. given template<typename... Types> struct tuple; template<typename... Types> struct tuple_of_refs { typedef tuple<Types&...> types; }; the type of the "types" typedef is a PackExpansionType whose pattern is Types&. This commit introduces support for creating pack expansions for template type arguments, as above, but not for any other kind of pack expansion, nor for any form of instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122223 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17Replace all uses of PathV1::isAbsolute with PathV2::is_{absolute,relative}.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122087 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-16MemoryBuffer API update.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121956 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-15Fix diagnostic pragmas.Argyrios Kyrtzidis
Diagnostic pragmas are broken because we don't keep track of the diagnostic state changes and we only check the current/latest state. Problems manifest if a diagnostic is emitted for a source line that has different diagnostic state than the current state; this can affect a lot of places, like C++ inline methods, template instantiations, the lexer, etc. Fix the issue by having the Diagnostic object keep track of the source location of the pragmas so that it is able to know what is the diagnostic state at any given source location. Fixes rdar://8365684. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121873 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-14Restore r121752 without modification.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121763 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-14Pull out r121752 in case it's causing the selfhost breakage.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121759 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-14Factor out most of the extra state in a FunctionProtoType into a separateJohn McCall
class to be passed around. The line between argument and return types and everything else is kindof vague, but I think it's justifiable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121752 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13Variadic templates: extend Type, NestedNameSpecifier, TemplateName,Douglas Gregor
and TemplateArgument with an operation that determines whether there are any unexpanded parameter packs within that construct. Use this information to diagnose the appearance of the names of parameter packs that have not been expanded (C++ [temp.variadic]p5). Since this property is checked often (every declaration, ever expression statement, etc.), we extend Type and Expr with a bit storing the result of this computation, rather than walking the AST each time to determine whether any unexpanded parameter packs occur. This commit is deficient in several ways, which will be remedied with future commits: - Expr has a bit to store the presence of an unexpanded parameter pack, but it is never set. - The error messages don't point out where the unexpanded parameter packs were named in the type/expression, but they should. - We don't check for unexpanded parameter packs in all of the places where we should. - Testing is sparse, pending the resolution of the above three issues. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121724 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10Keep the source location of the selector in ObjCMessageExpr.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121516 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10Eliminate the branching in QualType::getTypePtr() by providing aDouglas Gregor
common base for ExtQuals and Type that stores the underlying type pointer. This results in a 2% performance win for -emit-llvm on a typical C file, with 1% memory growth in the AST. Note that there is an API change in this optimization: QualType::getTypePtr() can no longer be invoked on a NULL QualType. If the QualType might be NULL, use QualType::getTypePtrOrNull(). I've audited all uses of getTypePtr() in the code base and changed the appropriate uses over to getTypePtrOrNull(). A future optimization opportunity would be to distinguish between cast/dyn_cast and cast_or_null/dyn_cast_or_null; for the former, we could use getTypePtr() rather than getTypePtrOrNull(), to take another branch out of the cast/dyn_cast implementation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121489 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10Added ParenType type node.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121488 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10It's kindof silly that ExtQuals has an ASTContext&, and we can use thatJohn McCall
space better. Remove this reference. To make that work, change some APIs (most importantly, getDesugaredType()) to take an ASTContext& if they need to return a QualType. Simultaneously, diminish the need to return a QualType by introducing some useful APIs on SplitQualType, which is just a std::pair<const Type *, Qualifiers>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121478 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09Use error_code instead of std::string* for MemoryBuffer.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09When an "inline" declaration was followed by a definition not markedDouglas Gregor
"inline", we weren't giving the definition weak linkage because the "inline" bit wasn't propagated. This was a longstanding FIXME that, somehow, hadn't triggered a bug in the wild. Fix this problem by tracking whether any declaration was marked "inline", and clean up the semantics of GNU's "extern inline" semantics calculation based on this change. Fixes <rdar://problem/8740363>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121373 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-08Remove the TypesCompatibleExprClass AST node. Merge its functionality into ↵Francois Pichet
BinaryTypeTraitExpr. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Type traits intrinsic implementation: __is_base_of(T, U)Francois Pichet
New AST node introduced: BinaryTypeTraitExpr; to be reused for more intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121074 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Re-implement caching for the linkage calculation of declarations.Douglas Gregor
My previous attempt at solving the compile-time problem with many redeclarations of the same entity cached both linkage and visibility, while this patch only tackles linkage. There are several reasons for this difference: - Linkage is a language concept, and is evaluated many times during semantic analysis and codegen, while visibility is only a code-generation concept that is evaluated only once per (unique) declaration. Hence, we *must* optimize linkage calculations but don't need to optimize visibility computation. - Once we know the linkage of a declaration, subsequent redeclarations can't change that linkage. Hence, cache invalidation is far simpler than for visibility, where a later redeclaration can completely change the visibility. - We have 3 spare bits in Decl to store the linkage cache, so the cache doesn't increase the size of declarations. With the visibility+linkage cache, NamedDecl got larger. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121023 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Revert r120808, my previous implementation of caching for the linkageDouglas Gregor
and visibility of declarations, because it was extremely messy and it increased the size of NamedDecl. An improved implementation is forthcoming. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121012 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-06Rename CXXExprWithTemporaries -> ExprWithCleanups; there's no theoreticalJohn McCall
reason this is limited to C++, and it's certainly not limited to temporaries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120996 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04More anonymous struct/union redesign. This one deals with anonymous field ↵Francois Pichet
used in a constructor initializer list: struct X { X() : au_i1(123) {} union { int au_i1; float au_f1; }; }; clang will now deal with au_i1 explicitly as an IndirectFieldDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03Added struct/class syntactic info for c++0x scoped enum.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120828 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03Implement caching for the linkage and visibility calculations ofDouglas Gregor
declarations. The motivation for this patch is that linkage/visibility computations are linear in the number of redeclarations of an entity, and we've run into a case where a single translation unit has > 6500 redeclarations of the same (unused!) external variable. Since each redeclaration involves a linkage check, the resulting quadratic behavior makes Clang slow to a crawl. With this change, a simple test with 512 redeclarations of a variable syntax-checks ~20x faster than before. That said, I hate this change, and will probably end up reverting it in a few hours. Reasons to hate it: - It makes NamedDecl larger, since we don't have enough free bits in Decl to squeeze in the extra information about caching. - There are way too many places where we need to invalidate this cache, because the visibility of a declaration can change due to redeclarations (!). Despite self-hosting and passing the testsuite, I have no confidence that I've found all of places where this cache needs to be invalidated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120808 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02Simplify the ASTs by consolidating ObjCImplicitGetterSetterExpr and ↵John McCall
ObjCPropertyRefExpr into the latter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120643 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01Serialization: support for CUDA language extensionsPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120588 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30When using a precompiled preamble with detailed preprocessing records,Douglas Gregor
trap the serialized preprocessing records (macro definitions, macro instantiations, macro definitions) from the generation of the precompiled preamble, then replay those when walking the list of preprocessed entities. This eliminates a bug where clang_getCursor() wasn't able to find preprocessed-entity cursors in the preamble. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30When loading a precompiled preamble, use the file ID of theDouglas Gregor
precompiled preamble as the "main" source file's file ID within the source manager. This makes compiling with a precompiled preamble produce the same source locations as when compiling without the precompiled preamble; prior to this change, we ended up with different file IDs for source locations within the precompiled preamble vs. those after the precompiled preamble, even for entities (e.g., preprocessing entities) in the same file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29Merge System into Support.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120297 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-25Hide a bunch of symbols.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120153 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23change the 'is directory' indicator to be a null-or-notChris Lattner
pointer that is passed down through the APIs, and make FileSystemStatCache::get be the one that filters out directory lookups that hit files. This also paves the way to have stat queries be able to return opened files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120060 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23simplify the cache miss handling code, eliminating CacheMissing.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23PCH files only cache successful stats. Remove the code that reads/writes Chris Lattner
the result code of the stat to/from the PCH file since it is always 0. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120031 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23rework the stat cache, pulling it out of FileManager.h intoChris Lattner
its own header and giving it some more structure. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120030 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23tidy up. Split FileManager::getBufferForFile intoChris Lattner
two copies, since they are fundamentally different operations and the StringRef one should go away (it shouldn't be part of FileManager at least). Remove some dead arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120013 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23now the FileManager has a FileSystemOpts ivar, stop threadingChris Lattner
FileSystemOpts through a ton of apis, simplifying a lot of code. This also fixes a latent bug in ASTUnit where it would invoke methods on FileManager without creating one in some code paths in cindextext. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120010 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-21remove old compatibility APIs, use StringRef versions instead.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119935 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-21Major anonymous union/struct redesign.Francois Pichet
A new AST node is introduced: def IndirectField : DDecl<Value>; IndirectFields are injected into the anonymous's parent scope and chain back to the original field. Name lookup for anonymous entities now result in an IndirectFieldDecl instead of a FieldDecl. There is no functionality change, the code generated should be the same. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119919 91177308-0d34-0410-b5e6-96231b3b80d8
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