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path: root/lib/Serialization/Module.cpp
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2012-04-15Use forward declarations for ASTDeclContextNameLookupTable and add a missing ↵Benjamin Kramer
delete. It would be nice to use OwningPtr here, but DeclContextInfo is stored in a DenseMap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154763 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
2012-01-18Optimize 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
2012-01-15Completely 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
2011-12-27Initialize member that ends up in PCH files.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147288 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-17Completely re-implement (de-)serialization of declarationDouglas Gregor
chains. The previous implementation relied heavily on the declaration chain being stored as a (circular) linked list on disk, as it is in memory. However, when deserializing from multiple modules, the different chains could get mixed up, leading to broken declaration chains. The new solution keeps track of the first and last declarations in the chain for each module file. When we load a declaration, we search all of the module files for redeclarations of that declaration, then splice together all of the lists into a coherent whole (along with any redeclarations that were actually parsed). As a drive-by fix, (de-)serialize the redeclaration chains of TypedefNameDecls, which had somehow gotten missed previously. Add a test of this serialization. This new scheme creates a redeclaration table that is fairly large in the PCH file (on the order of 400k for Cocoa.h's 12MB PCH file). The table is mmap'd in and searched via a binary search, but it's still quite large. A future tweak will eliminate entries for declarations that have no redeclarations anywhere, and should drastically reduce the size of this table. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146841 91177308-0d34-0410-b5e6-96231b3b80d8
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
2011-10-28[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
2011-09-15[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
2011-08-25Factor the Module and ModuleManager classes out into separate headersDouglas Gregor
and .cpp files, since ASTReader.cpp was getting way too large. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138582 91177308-0d34-0410-b5e6-96231b3b80d8