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2011-07-29In the ASTReader, replace the continuous range maps whose value typesDouglas Gregor
were (Module*, Offset) with equivalent maps whose value type is just a Module*. The offsets have moved into corresponding "Base" fields within the Module itself, where they will also be helpful for local->global translation (eventually). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136441 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-29Move the base type ID from the ASTReader's global type map into theDouglas Gregor
Module itself, which makes more sense. This pattern to be repeated several more times. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136436 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Some documentation fixes so that we are explicit about which iteration order ↵Jonathan D. Turner
is source-order. Also, removing unused NextInSource field of Module. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136423 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Introduce the local-global mapping for preprocessed entities, and useDouglas Gregor
it appropriately. Also, patch up a place where we were failing to map local macro definition IDs into global macro definition IDs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136411 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Use local-to-global mapping appropriately for macro definitions in the ASTReaderDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136410 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Use the local -> global mapping functions for selectors moreDouglas Gregor
consistently in the ASTReader. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136395 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Teach the ASTReader to perform local and global mapping of identifierDouglas Gregor
IDs properly, although the mapping itself is still trivial. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136391 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Make the deserialization of Sema::PendingInstantiations lazy. At thisDouglas Gregor
point, ASTReader::InitializeSema() has very little interesting work, *except* issues stemming from preloaded declarations. That's something we'll still need to cope with. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136378 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Promote the deserialized PendingInstantiations vector from being aDouglas Gregor
Module member to being an ASTReader member; we want it to be centralized for lazy deserialization. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136373 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Lazily deserialize Sema::VTableUses. Plus, fix the utterly andDouglas Gregor
completely broken deserialization mapping code we had for VTableUses, which would have broken horribly as soon as our local-to-global ID mapping became interesting. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136371 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Make Sema::WeakUndeclaredIdentifiers lazily deserialized.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136368 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Add missing documentation onto new member variable.Jonathan D. Turner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136365 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Switch the ModuleManager over to using a FileManager and FileEntry* as part ↵Jonathan D. Turner
of its lookup instead of the filename. This is a more correct unique identifier, as symlinks can be handled by the FileManager. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136363 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Make Sema::ReferencedSelectors lazily deserialized.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136357 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Move a Module's ReferencedSelectorsData into the ASTReader itself, soDouglas Gregor
that it accumulates referenced selectors from each of the modules/PCH files as they are loaded. No actual functionality change, yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136356 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Make Sema::LocallyScopedExternalDecls lazily deserialized. In theory,Douglas Gregor
we could turn this into an on-disk hash table so we don't load the whole thing the first time we need it. However, it tends to be very, very small (i.e., empty) for most precompiled headers, so it isn't all that interesting. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136352 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28AST serialization support for the Framework in IndexHeaderMapHeaderDouglas Gregor
fields of HeaderFileInfo. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136332 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Switch Sema::DynamicClasses over to LazyVectorDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136317 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Switch Sema::ExtVectorDecls over to LazyVector.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136314 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27Turn Sema::DelegatingCtorDecls into a LazyVector.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136273 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27Switch Sema::UnusedFileScopedDecls over to a LazyVector. Douglas Gregor
- Added LazyVector::erase() to support this use case. - Factored out the LazyDecl-of-Decls to RecordData translation in the ASTWriter. There is still a pile of code duplication here to eliminate. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136270 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27Introduce a new data structure, LazyVector, which is a vector whoseDouglas Gregor
contents are lazily loaded on demand from an external source (e.g., an ExternalASTSource or ExternalSemaSource). The "loaded" entities are kept separate from the "local" entities, so that the two can grow independently. Switch Sema::TentativeDefinitions from a normal vector that is eagerly populated by the ASTReader into one of these LazyVectors, making the ASTReader a bit more like me (i.e., lazy). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136262 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26This patch extends the previous patch by starting to incorporate more ↵Jonathan D. Turner
functionality, like lookup-by-name and exporting lookup tables, into the module manager. Methods now have documentation. A few more functions have been switched over to the new iterator style and away from manual/explicit iteration. Ultimately we want to move away from name lookup here, as symlinks make filenames not a safe unique value, but we use it here as a stopgap before better measures are in place (namely instead using FileEntry* from a global FileManager). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136107 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25Refactor of how modules are handled in ASTReader to remove explicit uses of ↵Jonathan D. Turner
a chain of AST files, instead redirect calls through a module manager. This should help move toward a DAG and the potential of loading multiple, unrelated PCH files. It's still early in development. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135957 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Switch all of the "isysroot" const char*'s throughout the AST readerDouglas Gregor
and writer to StringRef or std::string, as appropriate. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135769 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Rename ASTReader::PerFileData to serialization::Module, pulling it outDouglas Gregor
of ASTReader so it can become its own full-fledged class (eventually). No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135767 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Introduce a global bit-offset continuous range map into the ASTReader,Douglas Gregor
so that we have one, simple way to map from global bit offsets to local bit offsets. Eliminates a number of loops over the chain, and generalizes for more interesting bit remappings. Also, as an amusing oddity, we were computing global bit offsets *backwards* for preprocessed entities (e.g., the directly included PCH file in the chain would start at offset zero, rather than the original PCH that occurs first in translation unit). Even more amusingly, it made precompiled preambles work, because we were forgetting to adjust the local bit offset to a global bit offset when storing preprocessed entity offsets in the ASTUnit. Two wrongs made a right, and now they're both right. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135750 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22Fix an embarrassing bug in relocatable PCH support, where we wereDouglas Gregor
passing a temporary const char* down as the "isysroot" parameter and then accessing it later. Fixes <rdar://problem/9035180>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135749 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22In the AST reader, factor out the mapping of local type IDs to globalDouglas Gregor
type IDs into a single place, and make sure that all of the callers use the appropriate functions to do the mapping. Since the mapping is still the identity function, this is essentially a no-op. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135733 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-21Clean up the rest of the local -> global declaration ID mappingsDouglas Gregor
within the ASTReader (I hope). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135720 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-21In the ASTReader, factor out the loading of (local) declaration IDs,Douglas Gregor
such that every declaration ID loaded from an AST file will go through a central local -> global mapping function. At present, this change does nothing, since the local -> global mapping function is the identity function. This is the mechanical part of the refactoring; a follow-up patch will address a few remaining areas where it's not obvious whether we're dealing with local or global IDs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135711 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-21Cleaning up more of the ID situation in the AST reader. This patch relaxes ↵Jonathan D. Turner
and generalizes how CXX base specifiers are identified and loaded by using a ContinuousRangeMap. This also adds a global bit offset (or base) to the PerFileData. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135705 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-21Add some debugging output to the AST reader, so we can see the global ↵Douglas Gregor
remappings we generate git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135701 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-21Rework the detailed preprocessing record to separate preprocessingDouglas Gregor
entities generated directly by the preprocessor from those loaded from the external source (e.g., the ASTReader). By separating these two sets of entities into different vectors, we allow both to grow independently, and eliminate the need for preallocating all of the loaded preprocessing entities. This is similar to the way the recent SourceManager refactoring treats FileIDs and the source location address space. As part of this, switch over to building a continuous range map to track preprocessing entities. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135646 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20Continuing to improve and generalize how IDs are handled in ASTReader. This ↵Jonathan D. Turner
patch cleans up and generalizes TypeID loading and uses a similar table-lookup to Doug's previous Decl patch. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135622 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20add raw_ostream and Twine to LLVM.h, eliminating a ton of llvm:: qualifications.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135577 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20now that we have a centralized place to do so, add some using declarations forChris Lattner
some common llvm types: stringref and smallvector. This cleans up the codebase quite a bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20Use a ContinuousRangeMap to map from the global macro definition ID inDouglas Gregor
the AST reader down to the AST file + local ID, rather than walking the PCH chain. More cleanup/generalization, although there is more work to do for preprocessed entities. In particular, the "preallocation" scheme for preprocessed entities is not going to work well with late loading of PCH files, and it's likely we'll have to do something akin to the SourceManager's negative/positive loading. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135556 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20Use a ContinuousRangeMap to map from the global selector ID in the ASTDouglas Gregor
reader down to the AST file + local ID, rather than walking the PCH chain. No functionality change; this is generalization and cleanup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135554 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20Use a ContinuousRangeMap to map from the global identifier ID in theDouglas Gregor
AST reader down to the AST file + local ID, rather than walking the PCH chain. No functionality change; this is generalization and cleanup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135551 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20Try to appease MSVC's standard library.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135549 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20Use a ContinuousRangeMap to map from the global declaration ID in theDouglas Gregor
AST reader down to the AST file + local ID within that file, rather than lamely walking the PCH chain. There's no actual functionality change now, but this is cleaner and more general. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135548 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-19Revamp the SourceManager to separate the representation of parsedDouglas Gregor
source locations from source locations loaded from an AST/PCH file. Previously, loading an AST/PCH file involved carefully pre-allocating space at the beginning of the source manager for the source locations and FileIDs that correspond to the prefix, and then appending the source locations/FileIDs used for parsing the remaining translation unit. This design forced us into loading PCH files early, as a prefix, whic has become a rather significant limitation. This patch splits the SourceManager space into two parts: for source location "addresses", the lower values (growing upward) are used to describe parsed code, while upper values (growing downward) are used for source locations loaded from AST/PCH files. Similarly, positive FileIDs are used to describe parsed code while negative FileIDs are used to file/macro locations loaded from AST/PCH files. As a result, we can load PCH/AST files even during parsing, making various improvemnts in the future possible, e.g., teaching #include <foo.h> to look for and load <foo.h.gch> if it happens to be already available. This patch was originally written by Sebastian Redl, then brought forward to the modern age by Jonathan Turner, and finally polished/finished by me to be committed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135484 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15Augment the interface of ExternalASTSource::FindExternalLexicalDecls()Douglas Gregor
to allow clients to specify that they've already (correctly) loaded declarations, and that no further action is needed. Also, make sure that we clear the "has external lexical declarations" bit before calling FindExternalLexicalDecls(), to avoid infinite recursion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135306 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15Move the Serialization library from 'instantiation' to 'expansion', withChandler Carruth
the exception of its uses of SourceManager and SourceLocation APIs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135260 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-15Add serialization support for SubstNonTypeTemplateParmExpr.John McCall
Also add the missing serialization support for SEHTryStmt, SEHFinallyStmt, and SEHExceptStmt, and fix and finish the serialization support for AsTypeExpr. In addition, change the code so that it will no longer link if a Stmt subclass is missing serialization support. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135258 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Add support for C++ namespace-aware typo correction, e.g., correctingDouglas Gregor
vector<int> to std::vector<int> Patch by Kaelyn Uhrain, with minor tweaks + PCH support from me. Fixes PR5776/<rdar://problem/8652971>. Thanks Kaelyn! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134007 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Introduce a new AST node describing reference binding to temporaries.Douglas Gregor
MaterializeTemporaryExpr captures a reference binding to a temporary value, making explicit that the temporary value (a prvalue) needs to be materialized into memory so that its address can be used. The intended AST invariant here is that a reference will always bind to a glvalue, and MaterializeTemporaryExpr will be used to convert prvalues into glvalues for that binding to happen. For example, given const int& r = 1.0; The initializer of "r" will be a MaterializeTemporaryExpr whose subexpression is an implicit conversion from the double literal "1.0" to an integer value. IR generation benefits most from this new node, since it was previously guessing (badly) when to materialize temporaries for the purposes of reference binding. There are likely more refactoring and cleanups we could perform there, but the introduction of MaterializeTemporaryExpr fixes PR9565, a case where IR generation would effectively bind a const reference directly to a bitfield in a struct. Addresses <rdar://problem/9552231>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Automatic Reference Counting.John McCall
Language-design credit goes to a lot of people, but I particularly want to single out Blaine Garst and Patrick Beard for their contributions. Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself, in no particular order. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-04Add support for builtin astype:Tanya Lattner
__builtin_astype(): Used to reinterpreted as another data type of the same size using for both scalar and vector data types. Added test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132612 91177308-0d34-0410-b5e6-96231b3b80d8