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path: root/lib/Frontend/PCHWriter.cpp
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2009-04-25Revert my changes that try to avoid creating StringMap entries forDouglas Gregor
identifiers. They don't yet work, but will inhibit future optimizations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70071 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25Tweak the data layout for the on-disk hash table of identifiers in the PCH ↵Douglas Gregor
file so that the key layout matches that of the PTH key layout git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70066 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25Write the identifier offsets array into the PCH file as a blob, soDouglas Gregor
that the PCH reader does not have to decode the VBR encoding at PCH load time. Also, reduce the size of the identifier offsets from 64 bits down to 32 bits. The identifier table itself isn't going to grow to more than 4GB :) Overall, this results in a 13% speedup in the Cocoa-prefixed "Hello, World" benchmark. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70063 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25Write the declaration and type offset arrays into the bitstream asDouglas Gregor
blobs, so that we don't need to do any work to get these arrays into memory at PCH load time. This gives another 19% performance improvement to the Cocoa-prefixed "Hello, World!". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70059 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25Load the selector table lazily from the PCH file. Douglas Gregor
This results in a 10% speedup on the Cocoa-prefixed "Hello, World!", all of which is (not surprisingly) user time. There was a tiny reduction in the size of the PCH file for Cocoa.h, because certain selectors aren't being written twice. I'm using two new tricks here that I'd like to replicate elsewhere: (1) The selectors not used in the global method pool are packed into the blob after the global method pool's on-disk hash table and stored as keys, so that all selectors are in the same blob. (2) We record the offsets of each selector key when we write it into the global method pool (or after it, in the same blob). The offset table is written as a blob, so that we don't need to pack/unpack a SmallVector with its contents. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70055 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25Add PCH support for ObjCMessageExpr (needed to build Mail).Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70044 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25Fix a major bug in PCHReader::ReadSelectorBlock().Steve Naroff
Also simplify some syntax in PCHWriter::WritePreprocessor(), suggested by Chris. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70039 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25Add new checker-specific attribute 'objc_ownership_retain'. This isn't hooked upTed Kremenek
to the checker yet, but essentially it allows a user to specify that an Objective-C method or C function increments the reference count of a passed object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70005 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Add new checker-specific attribute 'objc_ownership_returns'. This isn't hookedTed Kremenek
up to the checker yet, but essentially it allows a user to specify that an Objective-C method or C function returns an owned an Objective-C object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70001 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Fix two small but very nasty bugs in the PCH writer for method pools:Douglas Gregor
(1) Make sure to pad on-disk hash tables with 4 bytes, not 2, since the reader assumes that bucket data is aligned on 4-byte boundaries. (2) Don't emit the number of factory methods twice. This was throwing off the data counts and therefore causing lookups to fail. I've added asserts so that this class of error cannot happen again. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69991 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24PCH support for the global method pool (= instance and factory methodDouglas Gregor
pools, combined). The methods in the global method pool are lazily loaded from an on-disk hash table when Sema looks into its version of the hash tables. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69989 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Add PCH support for #import.Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69987 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Eliminate Sema::ObjCImplementations, relying instead on name lookup. What's ↵Douglas Gregor
good for uniformity is good for PCH (or is it the other way around?). As part of this, make ObjCImplDecl inherit from NamedDecl (since ObjCImplementationDecls now need to have names so that they can be found). This brings ObjCImplDecl very, very close to ObjCContainerDecl; we may be able to merge them soon. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69941 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23Eliminate Sema::ObjCProtocols. Instead, we place ObjCProtocolDecls inDouglas Gregor
their own namespace (IDNS_Protocol) and use the normal name-lookup routines to find them. Aside from the simplification this provides (one less DenseMap!), it means that protocols will be lazily deserialized from PCH files. Make the code size of the selector table block match the code size of the type and decl blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69939 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23PCH support for categories in Objective-C interfaces.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69933 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23PCH support for all of the predefined Objective-C types, such as id,Douglas Gregor
SEL, Class, Protocol, CFConstantString, and __objcFastEnumerationState. With this, we can now run the Objective-C methods and properties PCH tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69932 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23Fix handling of C99 "extern inline" semantics when dealing withDouglas Gregor
multiple declarations of the function. Should fix PR3989 and <rdar://problem/6818429>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69905 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23Add PCH read/write support for Objective-C Selectors.Steve Naroff
Note: This support is non-lazy. Once we get "Cocoa.h" humming, we can optimize this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69884 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23PCH (de-)serialization of the protocols in an ObjCInterfaceDeclDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69860 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23PCH support for ObjCPropertyImplDeclDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69858 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23The ivars in an ObjCImplementationDecl are now stored in theDouglas Gregor
DeclContext rather than in a separate list. This makes PCH (de-)serialization trivial, so that ivars can be loaded lazily. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69857 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23PCH support for ObjCCategoryImplDecl (which can't be tested now).Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69856 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23PCH (de-)serialization for ObjCImplDecl. This can't be tested yet.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69855 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22PCH support for Objective-C property declarations (UNTESTED!)Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69843 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22Add PCH statistics for the number/percent of lexical/visible declcontexts readDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69835 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22Support locally-declared external declarations in PCH filesDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69833 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22Support tentative definitions in precompiled headers. This isn't likelyDouglas Gregor
to happen (ever), but at least we'll do the right thing when it does. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69829 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22Minimize the number and kind of "external definitions" that the PCHDouglas Gregor
file needs to store. CodeGen needs to see these definitions (via HandleTopLevelDecl), otherwise it won't be able to generate code for them. This patch notifies the consumer (e.g., CodeGen) about function definitions and variable definitions when the corresponding declarations are deserialized. Hence, we don't eagerly deserialize the declarations for every variable or function that has a definition in the PCH file. This gives another 5% speedup for the Carbon-prefixed "Hello, World!", and brings our PCH statistics down to something far more reasonable: *** PCH Statistics: 13/20693 types read (0.062823%) 17/59230 declarations read (0.028702%) 54/44914 identifiers read (0.120230%) 0/32954 statements read (0.000000%) 5/6187 macros read (0.080815%) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69820 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22Lazy loading of builtins for precompiled headers.Douglas Gregor
PCH files now contain complete information about builtins, including any declarations that have been synthesized as part of building the PCH file. When using a PCH file, we do not initialize builtins at all; when needed, they'll be found in the PCH file. This optimization translations into a 9% speedup for "Hello, World!" with Carbon.h as a prefix header and roughly a 5% speedup for 403.gcc with its prefix header. We're also reading less of the PCH file for "Hello, World!": *** PCH Statistics: 286/20693 types read (1.382110%) 1630/59230 declarations read (2.751984%) 764/44914 identifiers read (1.701029%) 1/32954 statements read (0.003035%) 5/6187 macros read (0.080815%) down from *** PCH Statistics: 411/20693 types read (1.986179%) 2553/59230 declarations read (4.310316%) 1093/44646 identifiers read (2.448148%) 1/32954 statements read (0.003035%) 21/6187 macros read (0.339421%) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69815 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22ObjCQualifiedClass is dead, remove it.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69783 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22pch support for protocol qualified id's.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69781 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22add three new objc expression types. @selector doesn't work because we have no Chris Lattner
way to serialize selectors yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69780 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22implement serialization support for @encode,Chris Lattner
fix a couple of bugs in reader support for ObjCInterfaceDecl, and add support for reading ObjCInterfaceType. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69779 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21Lazy deserialization of macro definitions for precompiled headers.Douglas Gregor
This optimization improves performance on the Carbon-prefixed "Hello, World!" example by 57%. For reference, we're now about 2.25x faster than GCC PCH. We're also pulling in far less of the PCH file: *** PCH Statistics: 411/20693 types read (1.986179%) 2553/59230 declarations read (4.310316%) 1093/44646 identifiers read (2.448148%) 1/32954 statements read (0.003035%) 21/6187 macros read (0.339421%) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69755 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21Don't bother writing a visible-declarations record for the translationDouglas Gregor
unit into the PCH file, since we won't be performing name lookup into it anyway. Reduces the size of the Carbon.h PCH file by ~200k. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69739 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21Lazy deserialization of the declaration chains associated withDouglas Gregor
identifiers from a precompiled header. This patch changes the primary name lookup method for entities within a precompiled header. Previously, we would load all of the names of declarations at translation unit scope into a large DenseMap (inside the TranslationUnitDecl's DeclContext), and then perform a special "last resort" lookup into this DeclContext when we knew there was a PCH file (see Sema::LookupName). Now, when we see an identifier named for the first time, we load all of the declarations with that name that are visible from the translation unit into the IdentifierInfo's chain of declarations. Thus, the explicit "look into the translation unit's DeclContext" code is gone, and Sema effectively uses the same IdentifierInfo-based name lookup mechanism whether we are using a PCH file or not. This approach should help PCH scale with the size of the input program rather than the size of the PCH file. The "Hello, World!" application with Carbon.h as a PCH file now loads 20% of the identifiers in the PCH file rather than 85% of the identifiers. 90% of the 20% of identifiers loaded are actually loaded when we deserialize the preprocessor state. The next step is to make the preprocessor load macros lazily, which should drastically reduce the number of types, declarations, and identifiers loaded for "Hello, World". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69737 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21Add pch reader/writer support for most of DeclObjC.h. Very close to ↵Steve Naroff
reading/writing all ObjC AST nodes that we will encounter in header files (still a few FIXME's). Once selector support is in place, we should be able to take this for a spin (and add test cases). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69674 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20Write the identifier table into the PCH file as an on-disk hash tableDouglas Gregor
that also includes the contents of the IdentifierInfo itself (the various fields and flags, along with the chain of identifiers visible at the top level that have that name). We don't make any use of the hash table yet, except that our identifier ID -> string mapping points into the hash table now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69625 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20Add pch reader/writer support for ObjCContainerDecl, ObjCInterfaceDecl, & ↵Steve Naroff
ObjCIvarDecl. Next step: Add selector support to PCHWriter::AddDeclarationName(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69619 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20the __gnuc_inline__ attribute is actually named __gnu_inline__,Chris Lattner
PR4023 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69618 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20Introduce the notion of a SemaConsumer, which is an ASTConsumer thatDouglas Gregor
also gets access to the Sema object performing semantic analysis. This will be used by the PCH writer to serialize Sema state. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69595 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20Add pch reader/writer support for ObjCMethodDecl.Steve Naroff
Test will be enabled with ObjCInterfaceDecl is added. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69594 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19Add location info for indirect goto.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69497 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18Don't emit name-lookup tables for functions or methods in the PCH filesDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69449 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18Store the type ID for __builtin_va_list in the PCH file, so that theDouglas Gregor
AST context's __builtin_va_list type will be set when the PCH file is loaded. This fixes the crash when CodeGen'ing a va_arg expression pulled in from a PCH file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69421 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18FunctionDecl::getBody() is getting an ASTContext argument for use inDouglas Gregor
lazy PCH deserialization. Propagate that argument wherever it needs to be. No functionality change, except that I've tightened up a few PCH tests in preparation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17Keep track of the number of statements/expressions written to and readDouglas Gregor
from a PCH file. It turns out that "Hello, World!" is bringing in 19% of all of the statements in Carbon.h, so we need to be lazy. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69393 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17PCH support for inline assembly statements.Douglas Gregor
This completes support for all of C (+ extensions). We can (again) build a PCH file for Carbon.h. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69385 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17PCH support for blocksDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17PCH support for GNU statement expressionsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69370 91177308-0d34-0410-b5e6-96231b3b80d8
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