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2011-12-01Switch the ID numbers used for submodule IDs in the AST reader over toDouglas Gregor
a standard global/local scheme, so that submodule definitions will eventually be able to refer to submodules in other top-level modules. We'll need this functionality soonish. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145549 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30Promote ModuleMap::Module to a namespace-scope class in the BasicDouglas Gregor
library, since modules cut across all of the libraries. Rename serialization::Module to serialization::ModuleFile to side-step the annoying naming conflict. Prune a bunch of ModuleMap.h includes that are no longer needed (most files only needed the Module type). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30[PCH] In ASTReader::FinishedDeserializing, after we do ↵Argyrios Kyrtzidis
PassInterestingDeclsToConsumer we may end up having added more pending stuff to do, so go in a loop until everything is cleared out. This fixes the error in rdar://10278815 which has a certain David Lynch-esque quality.. error: unknown type name 'BOOL'; did you mean 'BOOL'? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30Implement (de-)serialization of the description of a module and itsDouglas Gregor
submodules. This information will eventually be used for name hiding when dealing with submodules. For now, we only use it to ensure that the module "key" returned when loading a module will always be a module (rather than occasionally being a FileEntry). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145497 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30When writing a module file, pass the module through to the ASTDouglas Gregor
writer. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145479 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-16Implement (de-)serialization of the buffer contents for an overriddenDouglas Gregor
file in the source manager. This allows us to properly create and use modules described by module map files without umbrella headers (or with incompletely umbrella headers). More generally, we can actually build a PCH file that makes use of file -> buffer remappings, which could be useful in libclang in the future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-14[PCH] Load the chained objc categories only after recursive loading is finishedArgyrios Kyrtzidis
otherwise we may crash. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144524 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-14[PCH] Do not crash if a class extension in a chained PCH ↵Argyrios Kyrtzidis
introduces/redeclares a property. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144520 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-14[PCH] In ASTWriter::WriteChainedObjCCategories use getDeclID since the declsArgyrios Kyrtzidis
should have been already emitted. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144519 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-13[PCH] When chaining a PCH and serializing HeaderSearch, make sure the ↵Argyrios Kyrtzidis
HeaderFileInfos from the primary PCH is deserialized, otherwise we lose info that headers were already #imported/#included. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144510 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-13Fix the signature of the getcontext builtin. Patch by Dimitry Andric.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144505 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-12Add a method in ASTMutationListener for the last use of Decl's ↵Argyrios Kyrtzidis
[is/set]ChangedSinceDeserialization and remove them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144466 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-12[PCH] When completing an objc forward reference, do not serialize the chain ↵Argyrios Kyrtzidis
of its categories because it is going to be rewritten (and the chain will be serialized again), otherwise we may form a cycle in its categories list when deserializing. Also introduce ASTMutationListener::CompletedObjCForwardRef to notify that a forward reference was completed; using Decl's isChangedSinceDeserialization/setChangedSinceDeserialization is bug inducing and kinda gross, we should phase it out. Fixes infinite loop in rdar://10418538. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144465 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-11Rename SPECIAL_TYPE_jmp_buf and SPECIAL_TYPE_sigjmp_buf to follow theDouglas Gregor
convention of SPECIAL_TYPE*. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144403 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-09Fixing 80 col violations (& removing any trailing whitespace on files I was ↵David Blaikie
touching anyway) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144171 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-06Change the AST representation of operations on Objective-CJohn McCall
property references to use a new PseudoObjectExpr expression which pairs a syntactic form of the expression with a set of semantic expressions implementing it. This should significantly reduce the complexity required elsewhere in the compiler to deal with these kinds of expressions (e.g. IR generation's special l-value kind, the static analyzer's Message abstraction), at the lower cost of specifically dealing with the odd AST structure of these expressions. It should also greatly simplify efforts to implement similar language features in the future, most notably Managed C++'s properties and indexed properties. Most of the effort here is in dealing with the various clients of the AST. I've gone ahead and simplified the ObjC rewriter's use of properties; other clients, like IR-gen and the static analyzer, have all the old complexity *and* all the new complexity, at least temporarily. Many thanks to Ted for writing and advising on the necessary changes to the static analyzer. I've xfailed a small diagnostics regression in the static analyzer at Ted's request. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143867 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-03[libclang] Add infrastructure to be able to only deserialize decls in a file ↵Argyrios Kyrtzidis
region and use it for clang_getCursor. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31[PCH] Now that we store the location of a decl outside its recordArgyrios Kyrtzidis
make sure that we keep track of locations of replaced decls as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143341 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31[PCH] For ASTReader's FileDeclIDs also associate the Module that theArgyrios Kyrtzidis
local DeclIDs came from. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143340 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28[PCH] Sort the file decls by file offset not raw source location.Argyrios Kyrtzidis
Currently sorting by raw source location does work as intended but who knows what may change in the future.. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143256 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28[PCH] In ASTWriter::associateDeclWithFile don't bother finding the file locArgyrios Kyrtzidis
if we are not interested in the decl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143255 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28[PCH] Keep track of file-level declarations that are contained by files.Argyrios Kyrtzidis
Introduce a FILE_SORTED_DECLS [de]serialization record that contains a file sorted array of file-level DeclIDs in a PCH/Module. The rationale is to allow "targeted" deserialization of decls inside a range of a source file. Cocoa PCH increased by 0.8% Difference of creation time for Cocoa PCH is below the noise level. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143238 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27[PCH] Pull the location out of the serialized declarations and put it in the ↵Argyrios Kyrtzidis
array of decl bit offsets. This allows us to easily get at the location of a decl without deserializing it. It increases size of Cocoa PCH by only 0.2%. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143123 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Make the loading of information attached to an IdentifierInfo from anDouglas Gregor
AST file more lazy, so that we don't eagerly load that information for all known identifiers each time a new AST file is loaded. The eager reloading made some sense in the context of precompiled headers, since very few identifiers were defined before PCH load time. With modules, however, a huge amount of code can get parsed before we see an @import, so laziness becomes important here. The approach taken to make this information lazy is fairly simple: when we load a new AST file, we mark all of the existing identifiers as being out-of-date. Whenever we want to access information that may come from an AST (e.g., whether the identifier has a macro definition, or what top-level declarations have that name), we check the out-of-date bit and, if it's set, ask the AST reader to update the IdentifierInfo from the AST files. The update is a merge, and we now take care to merge declarations before/after imports with declarations from multiple imports. The results of this optimization are fairly dramatic. On a small application that brings in 14 non-trivial modules, this takes modules from being > 3x slower than a "perfect" PCH file down to 30% slower for a full rebuild. A partial rebuild (where the PCH file or modules can be re-used) is down to 7% slower. Making the PCH file just a little imperfect (e.g., adding two smallish modules used by a bunch of .m files that aren't in the PCH file) tips the scales in favor of the modules approach, with 24% faster partial rebuilds. This is just a first step; the lazy scheme could possibly be improved by adding versioning, so we don't search into modules we already searched. Moreover, we'll need similar lazy schemes for all of the other lookup data structures, such as DeclContexts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143100 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25Restore r142914 and r142915, now with missing file and apparentJohn McCall
GCC compiler workaround. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142931 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25Revert r142914 and r142915, due to possibly missing file.NAKAMURA Takumi
r142914: "Introduce a placeholder type for "pseudo object"" r142915: "Pull the pseudo-object stuff into its own file." git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142921 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25Introduce a placeholder type for "pseudo object"John McCall
expressions: expressions which refer to a logical rather than a physical l-value, where the logical object is actually accessed via custom getter/setter code. A subsequent patch will generalize the AST for these so that arbitrary "implementing" sub-expressions can be provided. Right now the only client is ObjC properties, but this should be generalizable to similar language features, e.g. Managed C++'s __property methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142914 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25Implement support for dependent Microsoft __if_exists/__if_not_existsDouglas Gregor
statements. As noted in the documentation for the AST node, the semantics of __if_exists/__if_not_exists are somewhat different from the way Visual C++ implements them, because our parsed-template representation can't accommodate VC++ semantics without serious contortions. Hopefully this implementation is "good enough". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142901 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25[PCH] When visiting preprocessed entities, make it possible to avoid ↵Argyrios Kyrtzidis
deserializing preprocessed entities that are #included in the range that we are interested. This is useful when we are interested in preprocessed entities of a specific file, e.g when we are annotating tokens. There is also an optimization where we cache the last result of PreprocessingRecord::getPreprocessedEntitiesInRange and we re-use it if there is a call with the same range as before. rdar://10313365 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142887 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-21[PCH] When serializing Stmts, keep track of when sub statements are ↵Argyrios Kyrtzidis
referenced again and in such a case just write out a reference of a previously serialized Stmt, instead of serializing it all over again. This saves memory + space + [de]serializing time, and avoids blowing up memory with pathological cases. rdar://10293911 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142696 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-17Add a new placeholder type to represent "unbridged"John McCall
casts in ARC. No semantic analysis yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142208 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-14Provide half floating point support as a storage only type.Anton Korobeynikov
Lack of half FP was a regression compared to llvm-gcc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142016 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Add support for viewing the module graph via Graphviz, for debuggingDouglas Gregor
purposes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141697 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-11Initial implementation of __atomic_* (everything except __atomic_is_lock_free).Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141632 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06Support for C1x _Atomic specifier (see testcase). This is primarily being ↵Eli Friedman
committed at the moment to help support C++0x <atomic>, but it should be a solid base for implementing the full specification of C1x _Atomic. Thanks to Jeffrey Yasskin for the thorough review! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141330 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06Clang-side build system infrastructure for multiple tblgens.Peter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141267 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-25Rename Diagnostic to DiagnosticsEngine as per issue 5397David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20[PCH] Merge ASTReader::LoadPreprocessedEntity with ReadPreprocessedEntityArgyrios Kyrtzidis
and don't store the ID for each preprocessed entity. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140208 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19[PCH] The range map for SLoc offsets is a reversed one, not negated.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140066 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19In libclang, when visiting preprocessed entities in a source range, useArgyrios Kyrtzidis
PreprocessingRecord's getPreprocessedEntitiesInRange. Also remove all the stuff that were added in ASTUnit that are unnecessary now that we do a binary search for preprocessed entities and deserialize only what is necessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140063 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19Introduce PreprocessingRecord::getPreprocessedEntitiesInRange()Argyrios Kyrtzidis
which will do a binary search and return a pair of iterators for preprocessed entities in the given source range. Source ranges of preprocessed entities are stored twice currently in the PCH/Module file but this will be fixed in a subsequent commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140058 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19Rename SourceLocation::getFileLocWithOffset -> getLocWithOffset.Argyrios Kyrtzidis
It already works (and is useful with) macro locs as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140057 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19Make ASTReader/ASTWriter friends of SourceLocation. They alreadyArgyrios Kyrtzidis
depend on internal knowledge of SourceLocation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140056 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-19Const-ify some methods in ASTReader.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-17With modules, we can end up loading a new module after we've seen anDouglas Gregor
arbitrary amount of code. This forces us to stage the AST writer more strictly, ensuring that we don't assign a declaration ID to a declaration until after we're certain that no more modules will get loaded. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139974 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-15[PCH] Overhaul how preprocessed entities are [de]serialized.Argyrios Kyrtzidis
-Use an array of offsets for all preprocessed entities -Get rid of the separate array of offsets for just macro definitions; for references to macro definitions use an index inside the preprocessed entities array. -Deserialize each preprocessed entity lazily, at first request; not in bulk. Paves the way for binary searching of preprocessed entities that will offer efficiency and will simplify things on the libclang side a lot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139809 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-10Don't crash when we fail to load a module. It's unbecoming of aDouglas Gregor
well-bred compiler like Clang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139442 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09In the ASTReader, replace the never-NULL Preprocessor pointer with aDouglas Gregor
Preprocessor reference. Simplify some code along the way, so there is no separate "initialize the preprocessor" step. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139418 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09In ASTReader, replace the never-NULL ASTContext pointer with anDouglas Gregor
ASTContext reference. Remove all of the extra checking and logic that was used to cope with a NULL ASTContext. No effective functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-08Implement the Objective-C 'instancetype' type, which is an alias ofDouglas Gregor
'id' that can be used (only!) via a contextual keyword as the result type of an Objective-C message send. 'instancetype' then gives the method a related result type, which we have already been inferring for a variety of methods (new, alloc, init, self, retain). Addresses <rdar://problem/9267640>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139275 91177308-0d34-0410-b5e6-96231b3b80d8
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