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2010-11-20Revert r119838 "Don't warn for empty 'if' body if there is a macro that ↵Argyrios Kyrtzidis
expands to nothing" and use a better and more general approach, where NullStmt has a flag to indicate whether it was preceded by an empty macro. Thanks to Abramo Bagnara for the hint! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119887 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-19Don't warn for empty 'if' body if there is a macro that expands to nothing, e.g:Argyrios Kyrtzidis
if (condition) CALL(0); // empty macro but don't warn for empty body. Fixes rdar://8436021. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119838 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Refactoring of Diagnostic class.Argyrios Kyrtzidis
-Move the stuff of Diagnostic related to creating/querying diagnostic IDs into a new DiagnosticIDs class. -DiagnosticIDs can be shared among multiple Diagnostics for multiple translation units. -The rest of the state in Diagnostic object is considered related and tied to one translation unit. -Have Diagnostic point to the SourceManager that is related with. Diagnostic can now accept just a SourceLocation instead of a FullSourceLoc. -Reflect the changes to various interfaces. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119730 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18Calculate the value kind of an expression when it's created andJohn McCall
store it on the expression node. Also store an "object kind", which distinguishes ordinary "addressed" l-values (like variable references and pointer dereferences) and bitfield, @property, and vector-component l-values. Currently we're not using these for much, but I aim to switch pretty much everything calculating l-valueness over to them. For now they shouldn't necessarily be trusted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119685 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17For an Objective-C @synthesize statement, e.g.,Douglas Gregor
@synthesize foo = _foo; keep track of the location of the ivar ("_foo"). Teach libclang to visit the ivar as a member reference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119447 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-15Add a new expression kind, OpaqueValueExpr, which is useful forJohn McCall
certain internal type-checking procedures as well as for representing certain implicitly-generated operations. Uses to follow. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119289 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Add a variant of GCC-style vector types for ARM NEON.Bob Wilson
NEON vector types need to be mangled in a special way to comply with ARM's ABI, similar to some of the AltiVec-specific vector types. This patch is mostly just renaming a bunch of "AltiVecSpecific" things, since they will no longer be specific to AltiVec. Besides that, it just adds the new "NeonVector" enum. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118724 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Replace UsingDecl's SmallPtrSet of UsingShadowDecls with a linked list to ↵Argyrios Kyrtzidis
avoid leaking memory. Fixes rdar://8649963. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118674 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07Remove broken support for variadic templates, along with the variousDouglas Gregor
abstractions (e.g., TemplateArgumentListBuilder) that were designed to support variadic templates. Only a few remnants of variadic templates remain, in the parser (parsing template type parameter packs), AST (template type parameter pack bits and TemplateArgument::Pack), and Sema; these are expected to be used in a future implementation of variadic templates. But don't get too excited about that happening now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118385 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05Don't write an empty DIAG_USER_MAPPINGS record.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118305 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05Read/write from/to PCH the diagnostic mappings that the user set so that ↵Argyrios Kyrtzidis
e.g. #pragma clang diagnostic can be used in a PCH. Fixes rdar://8435969. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118303 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Implement -working-directory.Argyrios Kyrtzidis
When -working-directory is passed in command line, file paths are resolved relative to the specified directory. This helps both when using libclang (where we can't require the user to actually change the working directory) and to help reproduce test cases when the reproduction work comes along. --FileSystemOptions is introduced which controls how file system operations are performed (currently it just contains the working directory value if set). --FileSystemOptions are passed around to various interfaces that perform file operations. --Opening & reading the content of files should be done only through FileManager. This is useful in general since file operations will be abstracted in the future for the reproduction mechanism. FileSystemOptions is independent of FileManager so that we can have multiple translation units sharing the same FileManager but with different FileSystemOptions. Addresses rdar://8583824. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118203 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01Plug a leak in the preprocessing record's handling of inclusionDouglas Gregor
directives. We had a std::string in an object that was allocated via a BumpPtrAllocator. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117912 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-30Flush statements after writing each DECL_CXX_BASE_SPECIFIERS nodeDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117770 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-30Make the deserialization of macro definitions lazy, so that we canDouglas Gregor
load identifiers without loading their corresponding macro definitions. This is likely to improve PCH performance slightly, and reduces deserialization stack depth considerably when using preprocessor metaprogramming. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117750 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Make the deserialization of C++ base class specifiers lazy, improvingDouglas Gregor
the performance of C++ PCH and reducing stack depth in the reader. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117732 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Switch case IDs conflict between chained PCHs; since there is no need to be ↵Argyrios Kyrtzidis
global, make them local to a decl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117540 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Remove an assertion that hit on legitimate cases. A redeclaration may have ↵Argyrios Kyrtzidis
location before the first one if the redeclaration comes from a friend decl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117537 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Use the ASTMutationListener to track when a named decl gets added to a ↵Argyrios Kyrtzidis
DeclContext, meaning we need to rewrite its name lookup table in a chained PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Properly add chained template specializations.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117535 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Fix the re-serializing decls in a chained PCH mechanism.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117534 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-28Use the ASTMutationListener to track added template specializations in a ↵Argyrios Kyrtzidis
chained PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117533 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-27Make AST deserialization for class template specializations lazier, byDouglas Gregor
not loading the specializations of a class template until some AST consumer needs them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117498 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-27Lazily load the next friend in the chain of FriendDecls, to eliminateDouglas Gregor
some excessive recursion and deserialization. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117480 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-27Lazily load the "next" namespace in the chain of NamespaceDecls, toDouglas Gregor
eliminate some excessive recursion and deserialization. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117476 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26No really, we don't have a retain/release system for statements/expressionsJohn McCall
anymore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117357 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26When de-serializing a type that is supposed to be canonical, callDouglas Gregor
getCanonicalType() to make sure that the type we got back is actually canonical. This is the case for most types, which always build a canonical type when given canonical components. However, some types that involve expressions in their canonicalization (e.g., array types with dependent sizes) don't always build canonical types from canonical components, because there is no such thing as a "canonical" expression. Therefore, we do this extra mapping to ensure that the canonical types we store are actually canonical. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117344 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-25Improve the tracking of source locations for parentheses in constructor calls.Chandler Carruth
This adds them where missing, and traces them through PCH. We fix at least one bug in the extents found by the Index library, and make a lot of refactoring tools which care about the exact formulation of a constructor call easier to write. Also some minor cleanups to more consistently follow the friend pattern instead of the setter pattern when rebuilding a serialized AST. Patch originally by Samuel Benzaquen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117254 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-24Keep track in chained PCH of implicit members that were added after the ↵Argyrios Kyrtzidis
definition was completed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-24Start fleshing out ASTMutationListener; notify when a tag definition is ↵Argyrios Kyrtzidis
completed. In that case a chained PCH will record the updates to the DefinitionData pointer of forward references. If a forward reference mutated into a definition re-write it into the chained PCH, this is too big of a change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117239 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-24Introduce a DeclsToRewrite field in ASTWrite, used for collecting the decls ↵Argyrios Kyrtzidis
that will be replaced in the chained PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117238 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-24Some method renaming, no functionality change.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117237 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-24Refactoring.Argyrios Kyrtzidis
- Pass around RecordDataImpl instead of the concrete RecordData so that any SmallVector can be used. - Move ASTDeclWriter::WriteCXXDefinitionData to ASTWriter::AddCXXDefinitionData. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117236 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-24Put the mechanism in place to track modifications in an AST entity that were ↵Argyrios Kyrtzidis
committed after its initial creation/deserialization and store the changes in a chained PCH. The idea is that the AST entities call methods on the ASTMutationListener to give notifications of changes; the PCHWriter implements the ASTMutationListener interface and stores the incremental changes of the updated entity. WIP git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117235 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-24Simplify and "robust-ify" the way that CXXRecord references point to the ↵Argyrios Kyrtzidis
definition data when loaded from PCH. Temporary disable 'test/PCH/chain-cxx.cpp' until a better way to fix it is in place. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117234 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-24Minor refactoring; Pull reading/writing DefinitionData out into a function.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117233 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-22Substantially revise how clang computes the visibility of a declaration toJohn McCall
more closely parallel the computation of linkage. This gets us to a state much closer to what gcc emits, modulo bugs, which will undoubtedly arise in abundance. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117147 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Reorganize predefined macros for all Windows targets.Michael J. Spencer
This adds an option to set the _MSC_VER macro without recompiling. This is very useful when testing compatibility with the Windows SDK and c++stdlib headers. -fmsc-version=<version> (defaults to VS2003 (1300)) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116999 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-21Fix Whitespace.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20Modify the assumptions of an assert; the updated latest redeclaration can ↵Argyrios Kyrtzidis
have the same location if it's a template specialization pointing at the template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20Extend the preprocessing record and libclang with support forDouglas Gregor
inclusion directives, keeping track of every #include, #import, etc. in the translation unit. We keep track of the source location and kind of the inclusion, how the file name was spelled, and the underlying file to which the inclusion resolved. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116952 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20Fix chained PCH issue; make sure all visible decls that will be put into a ↵Argyrios Kyrtzidis
UPDATE_VISIBLE block were recorded beforehand. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116931 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20Minor optimization; Try to iterator over redeclarations only when necessary.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116930 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20Fix issue with chained PCH where forward references did not pick up later ↵Argyrios Kyrtzidis
definition in the chained PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116887 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Putting back safe fixes 116836,116837,116838Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Reverting 116836,116837,116838 until we resolve the getLangStandardForKind ↵Andrew Trick
failures. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116859 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19Fix up the comments for creating ParmVarDeclAbbrev to reflect reality.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116838 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-18Read/write declaration attributes from/to PCH properly. Embed them in the ↵Argyrios Kyrtzidis
declaration block instead of trying to create another block. The new block was messing with the assumption that after decls block comes the stmts block. Fixes http://llvm.org/PR8406 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116737 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-16White-listing templated-scope friend decls is a good idea, but doing itJohn McCall
by marking the decl invalid isn't. Make some steps towards supporting these and then hastily shut them down at the last second by marking them as unsupported. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116661 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-15Eradicate IsSuper field from ObjCImplicitSetterGetterRefExprClassFariborz Jahanian
AST node. (finishing off radar 8525788). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116603 91177308-0d34-0410-b5e6-96231b3b80d8