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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
2010-12-13Skip ParenType on function instantiations.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121720 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-11Improved complex constants evaluation.Abramo Bagnara
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121616 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10Introduce ObjCMessageExpr::getReceiverRange() to get the source range of the ↵Argyrios Kyrtzidis
receiver. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121517 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
2010-12-10Added 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
2010-12-10Move the "volatile" bit into QualType's "fast" qualifier set,Douglas Gregor
increasing the required type alignment from 8 to 16. This provides a 2.5% speedup for -fsyntax-only on a token-cached Cocoa.h, while only increasing memory consumption in the ASTContext by 0.8%. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-10Treat visibility on an enclosing namespace as a non-explicit source ofJohn McCall
visibility. Fixes PR8713. I've disabled a test which was testing that you can #pragma pop visibility to get out of a namespace's visibility attribute. We should probably just diagnose that as an error unless it's instrumental to someone's system headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121459 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
2010-12-09Fix another unnecessary-struct-padding issue.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121352 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09Before determining the effect the alignment of base struct will have in the ↵Argyrios Kyrtzidis
aligment of the sub-struct, take into account if the sub-struct is packed and its maximum field alignment. Fixes rdar://8745206 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121335 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
2010-12-08Fix two thinkos and add a test for importing the AST of a categoryDouglas Gregor
implementation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121263 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Implement AST import for Objective-C property implementationsDouglas Gregor
(@synthesize and @dynamic). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121159 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Cast CachedLinkage to linkage to avoid "comparison between signed and ↵Benjamin Kramer
unsigned integer" warnings. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121143 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Implement ASTImporter support for Objective-C category implementations.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121139 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() andJay Foad
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method trunc(), to be const and to return a new value instead of modifying the object in place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121121 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Extern the ASTImporter to import @implementation declarations.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121097 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Fix enumerator not handled in switch warnings.Francois Pichet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121084 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Kill FullExpr, as it was not, in fact, used anywhere in the code base.John McCall
I'm not opposed to the idea in concept, but there's no point in preserving abortive experiments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121083 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
2010-12-06Use the unused merge() function, fixing an minor, unintended change IDouglas Gregor
introduced in r121023. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121025 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
2010-12-06Add BlocksAttr assert on __block specificFariborz Jahanian
routines. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@121007 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
2010-12-06Clarify the logic for when to build an overloaded binop. In particular,John McCall
build one when either of the operands calls itself type-dependent; previously we were building when one of the operand types was dependent, which is not always the same thing and which can lead to unfortunate inconsistencies later. Fixes PR8739. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120990 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
2010-12-04Make IgnoreParenLValueCasts skip __extension__ nodes like IgnoreParens().John McCall
Abramo noticed this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120898 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Silence "comparison between signed and unsigned integer expressions" warnings.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120897 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-04Although we currently have explicit lvalue-to-rvalue conversions, they'reJohn McCall
not actually frequently used, because ImpCastExprToType only creates a node if the types differ. So explicitly create an ICE in the lvalue-to-rvalue conversion code in DefaultFunctionArrayLvalueConversion() as well as several other new places, and consistently deal with the consequences throughout the compiler. In addition, introduce a new cast kind for loading an ObjCProperty l-value, and make sure we emit those nodes whenever an ObjCProperty l-value appears that's not on the LHS of an assignment operator. This breaks a couple of rewriter tests, which I've x-failed until future development occurs on the rewriter. Ted Kremenek kindly contributed the analyzer workarounds in this patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120890 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-03Diagnose when accessing property in a class method andFariborz Jahanian
no property accessor class method to be found, instead of crashing in IRGen. // rdar://8703553 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120855 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
2010-12-02Merge transparent union types using member's unqualified typePeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120736 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02Merge transparent union types using member's canonical param typePeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120729 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02Fix inverted return value in the ASTImporter. No matter how much LLVMDouglas Gregor
code I wrote, returning "true" on error is still unnatural. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120727 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02IR Gen. part of API support for __block cxxFariborz Jahanian
objects imported into blocks. //rdar://8594790. Will have a test case coming (as well as one sent to llvm test suite). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120713 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02Tweaks.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120701 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02ObjC support in the XML dumper.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120700 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
2010-12-02Eliminate two uses of NDEBUG in headers that cause different symbolsDouglas Gregor
to be available in debug vs. release builds. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120629 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01Extend ExternalASTSource with the ability to lazily complete theDouglas Gregor
definition of an Objective-C class. Unlike with C/C++ classes, we don't have a well-defined point in Sema where Objective-C classes are checked for completeness, nor do we need to involve Sema when completing a class. Therefore, we take the appropriate of having the external AST source mark a particular Objective-C class as having an external declaration; when using one of the accessors of an Objective-C class that has an external declaration, we request that the external AST source fill in the Objective-C class definition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120627 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01Sema/AST work for capturing copy init expressionFariborz Jahanian
to be used in copy helper synthesis of __block variables. wip. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120617 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01AST printing for scoped enumerations and enumerations with a fixed ↵Douglas Gregor
underlying type, from Daniel Wallin git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120576 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-01Eliminate vtables from the Type hierarchy.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120562 91177308-0d34-0410-b5e6-96231b3b80d8