summaryrefslogtreecommitdiffstats
path: root/clang/lib/Frontend/PCHWriter.cpp
Commit message (Collapse)AuthorAgeFilesLines
...
* drop the _ID suffixes from block names.Chris Lattner2009-04-271-6/+6
| | | | llvm-svn: 70169
* add the decl names.Chris Lattner2009-04-261-2/+26
| | | | llvm-svn: 70167
* make llvm-bcanalyzer dump out PCH files symbolically. We should probablyChris Lattner2009-04-261-0/+107
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | eventually get an option to turn this off, but it is nice for looking at statistics. For example, the types block now prints: Block ID #11 (TYPES_BLOCK_ID): Num Instances: 1 Total Size: 895100b/111888B/27971.9W % of file: 1.55801 Num SubBlocks: 0 Num Abbrevs: 0 Num Records: 14899 % Abbrev Recs: 0 Code Histogram: 5478 TYPE_FUNCTION_PROTO 2683 TYPE_TYPEDEF 2460 TYPE_POINTER 2047 TYPE_ENUM 1553 TYPE_RECORD 283 TYPE_CONSTANT_ARRAY 274 TYPE_OBJC_INTERFACE 76 TYPE_INCOMPLETE_ARRAY 10 TYPE_VECTOR 9 TYPE_OBJC_QUALIFIED_ID 5 TYPE_FUNCTION_NO_PROTO 5 TYPE_EXT_QUAL 3 TYPE_TYPEOF_EXPR llvm-svn: 70166
* Some fixes for PCH (de-)serialization of Objective-C AST nodes:Douglas Gregor2009-04-261-9/+17
| | | | | | | | | | | | | | | | - Deal with the Receiver/ClassInfo shared storage in ObjCMessageExpr - Implement PCH support for ImplicitParamDecl - Fix the handling of the body of an ObjCMethodDecl - Several cast -> cast_or_null fixes - Make Selector::getIdentifierInfoForSlot work for 1-argument, NULL selectors. - Make Selector::getAsString() work with NULL selectors. - Fix the names of VisitObjCAtCatchStmt and VisitObjCAtFinallyStmt in the PCH reader and writer; these were never getting called. At this point, all of the pch-test tests pass for C and Objective-C. llvm-svn: 70163
* Add PCH read/write support for ObjC statements.Steve Naroff2009-04-261-1/+54
| | | | llvm-svn: 70143
* Make sure we have a code in the node:-)Steve Naroff2009-04-261-0/+4
| | | | | | This fixes all the -emit-pch problems discovered by utils/pch-test.pl. llvm-svn: 70125
* When writing a PCH file, write multiple type and declaration blocks asDouglas Gregor2009-04-261-12/+21
| | | | | | | | | | | necessary and iterate until all types and declarations have been written. This reduces the Cocoa.h PCH file size by about 4% (since we don't write types we don't need), and fixes problems where writing a declaration generates a new type. This doesn't seem to have any impact on performance either way. llvm-svn: 70109
* split ObjC and C++ Statements out into their own headers.Chris Lattner2009-04-261-1/+0
| | | | llvm-svn: 70105
* implement PCH support for the rest of ExprObjC.h, includingChris Lattner2009-04-261-3/+45
| | | | | | the missing bits of ObjCMessageExpr. llvm-svn: 70100
* Don't read all of the records in the PCH file's preprocessor block,Douglas Gregor2009-04-261-27/+28
| | | | | | | | | | | | most of which are ignored. Instead, move the __COUNTER__ value out to a PCH-level record (since it is handled eagerly) and move the header file information into the SourceManager block (which is also, currently, loaded eagerly). This results in another 17% performance improvement in the Cocoa-prefixed "Hello, World" with PCH. llvm-svn: 70097
* PCH optimization for the identifier table, where we separateDouglas Gregor2009-04-251-2/+36
| | | | | | | | | | | | | | | "interesting" identifiers (e.g., those where the IdentifierInfo has some useful information) from "uninteresting" identifiers (where the IdentifierInfo is just a name). This makes the hash table smaller (so searching in it should be faster) and, when loading "uninteresting" identifiers, we skip the lookup in the hash table. PCH file size is slightly smaller than before (since we don't emit the contents of the uninteresting IdentifierInfo structures). The Cocoa.h-prefixed "Hello, World" doesn't show any speedup, although we're getting to the point where system noise is a bit issue. llvm-svn: 70075
* Revert my changes that try to avoid creating StringMap entries forDouglas Gregor2009-04-251-7/+1
| | | | | | | identifiers. They don't yet work, but will inhibit future optimizations. llvm-svn: 70071
* Tweak the data layout for the on-disk hash table of identifiers in the PCH ↵Douglas Gregor2009-04-251-1/+7
| | | | | | file so that the key layout matches that of the PTH key layout llvm-svn: 70066
* Write the identifier offsets array into the PCH file as a blob, soDouglas Gregor2009-04-251-2/+13
| | | | | | | | | | | | | | 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. llvm-svn: 70063
* Write the declaration and type offset arrays into the bitstream asDouglas Gregor2009-04-251-3/+29
| | | | | | | | | | 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!". llvm-svn: 70059
* Load the selector table lazily from the PCH file. Douglas Gregor2009-04-251-31/+44
| | | | | | | | | | | | | | | | | | 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. llvm-svn: 70055
* Add PCH support for ObjCMessageExpr (needed to build Mail).Steve Naroff2009-04-251-0/+16
| | | | llvm-svn: 70044
* Fix a major bug in PCHReader::ReadSelectorBlock().Steve Naroff2009-04-251-5/+5
| | | | | | Also simplify some syntax in PCHWriter::WritePreprocessor(), suggested by Chris. llvm-svn: 70039
* Add new checker-specific attribute 'objc_ownership_retain'. This isn't hooked upTed Kremenek2009-04-251-0/+1
| | | | | | | | 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. llvm-svn: 70005
* Add new checker-specific attribute 'objc_ownership_returns'. This isn't hookedTed Kremenek2009-04-241-0/+1
| | | | | | | 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. llvm-svn: 70001
* Fix two small but very nasty bugs in the PCH writer for method pools:Douglas Gregor2009-04-241-5/+10
| | | | | | | | | | | | (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. llvm-svn: 69991
* PCH support for the global method pool (= instance and factory methodDouglas Gregor2009-04-241-0/+173
| | | | | | | | 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. llvm-svn: 69989
* Add PCH support for #import.Steve Naroff2009-04-241-1/+17
| | | | llvm-svn: 69987
* Eliminate Sema::ObjCImplementations, relying instead on name lookup. What's ↵Douglas Gregor2009-04-241-1/+1
| | | | | | | | | | | 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. llvm-svn: 69941
* Eliminate Sema::ObjCProtocols. Instead, we place ObjCProtocolDecls inDouglas Gregor2009-04-231-1/+1
| | | | | | | | | | | | 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. llvm-svn: 69939
* PCH support for categories in Objective-C interfaces.Douglas Gregor2009-04-231-1/+1
| | | | llvm-svn: 69933
* PCH support for all of the predefined Objective-C types, such as id,Douglas Gregor2009-04-231-0/+6
| | | | | | | | SEL, Class, Protocol, CFConstantString, and __objcFastEnumerationState. With this, we can now run the Objective-C methods and properties PCH tests. llvm-svn: 69932
* Fix handling of C99 "extern inline" semantics when dealing withDouglas Gregor2009-04-231-0/+1
| | | | | | | multiple declarations of the function. Should fix PR3989 and <rdar://problem/6818429>. llvm-svn: 69905
* Add PCH read/write support for Objective-C Selectors.Steve Naroff2009-04-231-4/+37
| | | | | Note: This support is non-lazy. Once we get "Cocoa.h" humming, we can optimize this. llvm-svn: 69884
* PCH (de-)serialization of the protocols in an ObjCInterfaceDeclDouglas Gregor2009-04-231-1/+6
| | | | llvm-svn: 69860
* PCH support for ObjCPropertyImplDeclDouglas Gregor2009-04-231-1/+3
| | | | llvm-svn: 69858
* The ivars in an ObjCImplementationDecl are now stored in theDouglas Gregor2009-04-231-1/+1
| | | | | | | DeclContext rather than in a separate list. This makes PCH (de-)serialization trivial, so that ivars can be loaded lazily. llvm-svn: 69857
* PCH support for ObjCCategoryImplDecl (which can't be tested now).Douglas Gregor2009-04-231-1/+1
| | | | llvm-svn: 69856
* PCH (de-)serialization for ObjCImplDecl. This can't be tested yet.Douglas Gregor2009-04-231-1/+2
| | | | llvm-svn: 69855
* PCH support for Objective-C property declarations (UNTESTED!)Douglas Gregor2009-04-221-2/+17
| | | | llvm-svn: 69843
* Add PCH statistics for the number/percent of lexical/visible declcontexts readDouglas Gregor2009-04-221-1/+6
| | | | llvm-svn: 69835
* Support locally-declared external declarations in PCH filesDouglas Gregor2009-04-221-0/+15
| | | | llvm-svn: 69833
* Support tentative definitions in precompiled headers. This isn't likelyDouglas Gregor2009-04-221-0/+14
| | | | | | to happen (ever), but at least we'll do the right thing when it does. llvm-svn: 69829
* Minimize the number and kind of "external definitions" that the PCHDouglas Gregor2009-04-221-16/+1
| | | | | | | | | | | | | | | | | | | | | | | 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%) llvm-svn: 69820
* Lazy loading of builtins for precompiled headers.Douglas Gregor2009-04-221-8/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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%) llvm-svn: 69815
* ObjCQualifiedClass is dead, remove it.Chris Lattner2009-04-221-8/+0
| | | | llvm-svn: 69783
* pch support for protocol qualified id's.Chris Lattner2009-04-221-0/+1
| | | | llvm-svn: 69781
* add three new objc expression types. @selector doesn't work because we have no Chris Lattner2009-04-221-2/+27
| | | | | | way to serialize selectors yet. llvm-svn: 69780
* implement serialization support for @encode,Chris Lattner2009-04-221-0/+18
| | | | | | | fix a couple of bugs in reader support for ObjCInterfaceDecl, and add support for reading ObjCInterfaceType. llvm-svn: 69779
* Lazy deserialization of macro definitions for precompiled headers.Douglas Gregor2009-04-211-10/+23
| | | | | | | | | | | | | | | 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%) llvm-svn: 69755
* Don't bother writing a visible-declarations record for the translationDouglas Gregor2009-04-211-3/+5
| | | | | | | 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. llvm-svn: 69739
* Lazy deserialization of the declaration chains associated withDouglas Gregor2009-04-211-13/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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". llvm-svn: 69737
* Add pch reader/writer support for most of DeclObjC.h. Very close to ↵Steve Naroff2009-04-211-2/+94
| | | | | | | | 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). llvm-svn: 69674
* Write the identifier table into the PCH file as an on-disk hash tableDouglas Gregor2009-04-201-18/+98
| | | | | | | | | | | 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. llvm-svn: 69625
* Add pch reader/writer support for ObjCContainerDecl, ObjCInterfaceDecl, & ↵Steve Naroff2009-04-201-0/+33
| | | | | | | | ObjCIvarDecl. Next step: Add selector support to PCHWriter::AddDeclarationName(). llvm-svn: 69619
OpenPOWER on IntegriCloud