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2012-02-11Represent C++ direct initializers as ParenListExprs before semantic analysisSebastian Redl
instead of having a special-purpose function. - ActOnCXXDirectInitializer, which was mostly duplication of AddInitializerToDecl (leading e.g. to PR10620, which Eli fixed a few days ago), is dropped completely. - MultiInitializer, which was an ugly hack I added, is dropped again. - We now have the infrastructure in place to distinguish between int x = {1}; int x({1}); int x{1}; -- VarDecl now has getInitStyle(), which indicates which of the above was used. -- CXXConstructExpr now has a flag to indicate that it represents list- initialization, although this is not yet used. - InstantiateInitializer was renamed to SubstInitializer and simplified. - ActOnParenOrParenListExpr has been replaced by ActOnParenListExpr, which always produces a ParenListExpr. Placed that so far failed to convert that back to a ParenExpr containing comma operators have been fixed. I'm pretty sure I could have made a crashing test case before this. The end result is a (I hope) considerably cleaner design of initializers. More importantly, the fact that I can now distinguish between the various initialization kinds means that I can get the tricky generalized initializer test cases Johannes Schaub supplied to work. (This is not yet done.) This commit passed self-host, with the resulting compiler passing the tests. I hope it doesn't break more complicated code. It's a pretty big change, but one that I feel is necessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150318 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-10Track whether a function type has a trailing return type as type sugar. Use thisRichard Smith
to pretty-print such function types better, and to fix a case where we were not instantiating templates in lexical order. In passing, move the Variadic bit from Type's bitfields to FunctionProtoType to get the Type bitfields down to 32 bits. Also ensure that we always substitute the return type of a function when substituting explicitly-specified arguments, since that can cause us to bail out with a SFINAE error before we hit a hard error in parameter substitution. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150241 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09[PCH] Add some comments, per Ted's request.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150162 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Fix ASTReader::FinishedDeserializing().Argyrios Kyrtzidis
We were passing a decl to the consumer after all pending deserializations were finished but this was not enough; due to processing by the consumer we may end up into yet another deserialization process but the way FinishedDeserializing() was setup we would not ensure that everything was fully deserialized before returning to the consumer. Separate ASTReader::FinishedDeserializing() into two semantic actions. The first is ensuring that a deserialization process ends up will fully deserialized decls/types even if the process is started by the consumer. The second is pushing "interesting" decls to the consumer; we make sure that we don't re-enter this section recursively be checking a variable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150160 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09[PCH] Set the DeclContext before doing any deserialization, to make sure ↵Argyrios Kyrtzidis
internal calls to Decl::getASTContext() by Decl's methods will find the TranslationUnitDecl without crashing due to a parent declaration context still deserializing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150153 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09[PCH] Avoid using Decl::setAttrs() and Decl::setLexicalDeclContext() from ↵Argyrios Kyrtzidis
the ASTReaderDecl directly; they internally call Decl::getASTContext() which may crash if a declaration context parent is still deserializing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150137 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Revert my patches which removed Diagnostic.h includes by moving some ↵Benjamin Kramer
operator overloads out of line. This seems to negatively affect compile time onsome ObjC tests (which use a lot of partial diagnostics I assume). I have to come up with a way to keep them inline without including Diagnostic.h everywhere. Now adding a new diagnostic requires a full rebuild of e.g. the static analyzer which doesn't even use those diagnostics. This reverts commit 6496bd10dc3a6d5e3266348f08b6e35f8184bc99. This reverts commit 7af19b817ba964ac560b50c1ed6183235f699789. This reverts commit fdd15602a42bbe26185978ef1e17019f6d969aa7. This reverts commit 00bd44d5677783527d7517c1ffe45e4d75a0f56f. This reverts commit ef9b60ffed980864a8db26ad30344be429e58ff5. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150006 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Introduce basic ASTs for lambda expressions. This covers:Douglas Gregor
- Capturing variables by-reference and by-copy within a lambda - The representation of lambda captures - The creation of the non-static data members in the lambda class that store the captured variables - The initialization of the non-static data members from the captured variables - Pretty-printing lambda expressions There are a number of FIXMEs, both explicit and implied, including: - Creating a field for a capture of 'this' - Improved diagnostics for initialization failures when capturing variables by copy - Dealing with temporaries created during said initialization - Template instantiation - AST (de-)serialization - Binding and returning the lambda expression; turning it into a proper temporary - Lots and lots of semantic constraints - Parameter pack captures git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149977 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Added source location for the template keyword in ↵Abramo Bagnara
DependentTemplateSpecializationTypeLoc nodes (DTSTLoc). The new info is propagated to TSTLoc on template instantiation, getting rid of 3 FIXMEs in TreeTransform.h and another one Parser.cpp. Simplified code in TypeSpecLocFiller visitor methods for DTSTLoc and DependentNameTypeLoc by removing what now seems to be dead code (adding corresponding assertions). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149923 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Removed redundant location info from ElaboratedTypeLoc / DependentNameLoc / ↵Abramo Bagnara
DependentTSTLoc. Uniformed names referencing elaborated keyword. No intended functionality changes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149889 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Added location for template keyword in TemplateSpecializationTypeLoc. In the ↵Abramo Bagnara
process removed some naming ambiguities. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149870 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Basic: import SmallString<> into clang namespaceDylan Noblesmith
(I was going to fix the TODO about DenseMap too, but that would break self-host right now. See PR11922.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149799 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Basic: import OwningPtr<> into clang namespaceDylan Noblesmith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149798 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Move a method from IdentifierTable.h out of line and remove the SmallString ↵Benjamin Kramer
include. Fix all the transitive include users. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149783 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Remove Diagnostic.h include from Preprocessor.h.Benjamin Kramer
- Move the offending methods out of line and fix transitive includers. - This required changing an enum in the PPCallback API into an unsigned. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149782 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Move various diagnostic operator<< overloads out of line and remove includes ↵Benjamin Kramer
of Diagnostic.h. Fix all the files that depended on transitive includes of Diagnostic.h. With this patch in place changing a diagnostic no longer requires a full rebuild of the StaticAnalyzer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149781 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-30Thread a TargetInfo through to the module map; we'll need it forDouglas Gregor
target-specific module requirements. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149224 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-27Introduce module attributes into the module map grammar, along with aDouglas Gregor
single attribute ("system") that allows us to mark a module as being a "system" module. Each of the headers that makes up a system module is considered to be a system header, so that we (for example) suppress warnings there. If a module is being inferred for a framework, and that framework directory is within a system frameworks directory, infer it as a system framework. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149143 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-27Added source location for the template keyword in AST template-id expressions.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149127 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-27Reimplement (de-)serialization of Objective-C categories to eliminateDouglas Gregor
the direct serialization of the linked-list structure. Instead, use a scheme similar to how we handle redeclarations, with redeclaration lists on the side. This addresses several issues: - In cases involving mixing and matching of many categories across many modules, the linked-list structure would not be consistent across different modules, and categories would get lost. - If a module is loaded after the class definition and its other categories have already been loaded, we wouldn't see any categories in the newly-loaded module. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149112 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Don't separately serialize the list of instance variables in anDouglas Gregor
Objective-C class. The AST reader just throws away this data anyway! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149067 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-25Introduce a generation number for selector lookups in the globalDouglas Gregor
method pool, so that we don't perform the same lookups into the same PCH/module file repeatedly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148895 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-25Rework the external Sema source's ReadMethodPool() so that it doesn'tDouglas Gregor
return pre-built lists. Instead, it feeds the methods it deserializes to Sema so that Sema can unique them, which keeps the chains shorter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148889 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24Only mark an IdentifierInfo as having changed since deserializationDouglas Gregor
when it actually has changed (and not, e.g., when we've simply attached a deserialized macro definition). Good for ~1.5% reduction in module file size, mostly in the identifier table. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148808 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18Optimize unqualified/global name lookup in modules by introducing aDouglas Gregor
generational scheme for identifiers that avoids searching the hash tables of a given module more than once for a given identifier. Previously, loading any new module invalidated all of the previous lookup results for all identifiers, causing us to perform the lookups repeatedly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148412 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Rework the way in which we (de-)serialize the declarationsDouglas Gregor
corresponding to TagType and ObjCInterfaceType. Previously, we would serialize the definition (if available) or the canonical declaration (if no definition was available). However, this can end up forcing the deserialization of the definition even through we might not want to yet. Instead, always serialize the canonical declaration reference in the TagType/ObjCInterfaceType entry, and as part of loading a pending definition, update the "decl" pointer within the type node to point at the definition. This is more robust in hard-to-isolate cases where the *Type gets built and filled in before we see the definition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148323 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17When collecting all of the redeclarations of a declaration loaded fromDouglas Gregor
a module file, be sure to also add the first (potentially canonical) declarations to the chain. This isn't guaranteed to occur because the first declaration is not listed in the stored redeclaration chain. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148314 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Delay the creation of the built-in Objective-C class 'Protocol' byDouglas Gregor
moving it from a "special type" to a predefined declaration, as we do for id, Class, and SEL. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148313 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Remove unreachable code in Clang. (replace with llvm_unreachable where ↵David Blaikie
appropriate or when GCC requires it) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148292 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Remove unnecessary default cases in switches over enums.David Blaikie
This allows -Wswitch-enum to find switches that need updating when these enums are modified. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148281 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-15Now that deserializing a definition of a C++ class/Objective-CDouglas Gregor
class/Objective-C protocol suffices get all of the redeclarations of that declaration wired to the definition, we no longer need to record the identity of the definition in every declaration. Instead, just record a bit to indicate whether a particular declaration is the definition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148224 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-15When deserializing the definition of a C++ class/ObjC class/ObjCDouglas Gregor
protocol, record the definition pointer in the canonical declaration for that entity, and then propagate that definition pointer from the canonical declaration to all other deserialized declarations. This approach works well even when deserializing declarations that didn't know about the original definition, which can occur with modules. A nice bonus from this definition-deserialization approach is that we no longer need update records when a definition is added, because the redeclaration chains ensure that the if any declaration is loaded, the definition will also get loaded. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148223 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-15Completely re-implement (de-)serialization of redeclarationDouglas Gregor
chains, again. The prior implementation was very linked-list oriented, and the list-splicing logic was both fairly convoluted (when loading from multiple modules) and failed to preserve a reasonable ordering for the redeclaration chains. This new implementation uses a simpler strategy, where we store the ordered redeclaration chains in an array-like structure (indexed based on the first declaration), and use that ordering to add individual deserialized declarations to the end of the existing chain. That way, the chain mimics the ordering from its modules, and a bug somewhere is far less likely to result in a broken linked list. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148222 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-14De-virtualize getPreviousDecl() and getMostRecentDecl() when we knowDouglas Gregor
we have a redeclarable type, and only use the new virtual versions (getPreviousDeclImpl() and getMostRecentDeclImpl()) when we don't have that type information. This keeps us from penalizing users with strict type information (and is the moral equivalent of a "final" method). Plus, settle on the names getPreviousDecl() and getMostRecentDecl() throughout. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148187 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-14Introduce Decl::getPreviousDecl() and Decl::getMostRecentDecl(),Douglas Gregor
virtual functions that provide previous/most recent redeclaration information for any declaration. Use this to eliminate the redundant, less efficient getPreviousDecl() functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148184 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-14Revert accidental commitDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148183 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-14Add a FIXME for mutation of the common pointer of a ↵Douglas Gregor
RedeclarableTemplateDecl. It is not clear that it's worth delaying the allocation of said pointer git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148182 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-14Reimplement RedeclarableTemplateDecl in terms ofDouglas Gregor
Redeclarable<RedeclarableTemplateDecl>, eliminating a bunch of redeclaration-chain logic both in RedeclarableTemplateDecl and especially in its (de-)serialization. As part of this, eliminate the RedeclarableTemplate<> class template, which was an abstraction that didn't actually save anything. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148181 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-13(Implicit) parameters deserialized as part of a function type must notDouglas Gregor
get added to the identifier chains as part of deserialization, because they should not be visible to name lookup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148159 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-13Progress towards making isUsed() reflect whether a declaration is odr-used; ↵Eli Friedman
don't set isUsed for local variables which are referenced in unevaluated contexts. Make other code use isReferenced() (which basically indicates that a declaration isn't dead) where appropriate. I was forced to change test/SemaCXX/linkage.cpp because we aren't actually modeling extern "C" in the AST the way that testcase expects; we were not printing a warning only because we skipped the relevant check. Someone who actually understands the semantics here should fix that. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148158 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-12Add IsImplicit field in ObjCMessageExpr that is true when the messageArgyrios Kyrtzidis
was constructed, e.g. for a property access. This allows the selector identifier locations machinery for ObjCMessageExpr to function correctly, in that there are not real locations to handle/report for such a message. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148013 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-09When deserializing an anonymous namespace from a module, do not attachDouglas Gregor
the anonymous namespace to its parent. Semantically, this means that the anonymous namespaces defined in one module are distinct from the anonymous namespaces defined in another module. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147782 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-09Implement merging of namespace-scope declarations across modules, soDouglas Gregor
that we can merge, for example, two occurrences of namespace N { void f(); } in two disjoint modules. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147780 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-09Implement redeclaration merging for namespaces defined in distinctDouglas Gregor
modules. Teach name lookup into namespaces to search in each of the merged DeclContexts as well as the (now-primary) DeclContext. This supports the common case where two different modules put something into the same namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147778 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07Pack UsingDecl more.Benjamin Kramer
88 -> 80 bytes on x86_64. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147736 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-07Switch NamespaceDecl from its own hand-rolled redeclaration chain overDouglas Gregor
to Redeclarable<NamespaceDecl>, so that we benefit from the improveed redeclaration deserialization and merging logic provided by Redeclarable<T>. Otherwise, no functionality change. As a drive-by fix, collapse the "inline" bit into the low bit of the original namespace/anonymous namespace, saving 8 bytes per NamespaceDecl on x86_64. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147729 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06During name lookup, use redecl_iterator to walk over the redeclarationDouglas Gregor
chain to determine whether any declaration of the given entity is visible, eliminating the redundant (and less efficient) getPreviousDeclaration() implementation. This tweak uncovered an omission in the handling of RedeclarableTemplateDecl, where we weren't making sure to search for additional redeclarations of a template in other module files. Things would be cleaner if RedeclarableTemplateDecl actually used Redeclarable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147687 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06Revert r147664; it's breaking clang regression tests.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147681 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06Silence GCC warnings.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06Stash Decl's TopLevelDeclInObjCContainer and ModulePrivate bitsDouglas Gregor
into the two unused lower bits of the NextDeclInContext link, dropping the number of bits in Decl down to 32, and saving 8 bytes per declaration on x86-64. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147660 91177308-0d34-0410-b5e6-96231b3b80d8
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