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path: root/include/clang/AST/DeclBase.h
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2010-12-03Implement caching for the linkage and visibility calculations ofDouglas Gregor
declarations. The motivation for this patch is that linkage/visibility computations are linear in the number of redeclarations of an entity, and we've run into a case where a single translation unit has > 6500 redeclarations of the same (unused!) external variable. Since each redeclaration involves a linkage check, the resulting quadratic behavior makes Clang slow to a crawl. With this change, a simple test with 512 redeclarations of a variable syntax-checks ~20x faster than before. That said, I hate this change, and will probably end up reverting it in a few hours. Reasons to hate it: - It makes NamedDecl larger, since we don't have enough free bits in Decl to squeeze in the extra information about caching. - There are way too many places where we need to invalidate this cache, because the visibility of a declaration can change due to redeclarations (!). Despite self-hosting and passing the testsuite, I have no confidence that I've found all of places where this cache needs to be invalidated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120808 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-02Eliminate two uses of NDEBUG in headers that cause different symbolsDouglas Gregor
to be available in debug vs. release builds. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120629 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-24Add -cc1 -ast-dump-xml, an excessively detailed XML dump of the internalsJohn McCall
of the ASTs. Only available in assertions builds. No stability guarantee. This is intended solely as a debugging tool. I'm not sure if the goals are sufficiently aligned with the XML printer to allow a common implementation. Currently just falls back on the StmtDumper to display statements, which means it doesn't produce valid XML in those cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120088 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26A couple of tweaks to the visibility rules: John McCall
- tags with C linkage should ignore visibility=hidden - functions and variables with explicit visibility attributes should ignore the linkage of their types Either of these should be sufficient to fix PR8457. Also, FileCheck-ize a test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117351 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-24Put the mechanism in place to track modifications in an AST entity that were ↵Argyrios Kyrtzidis
committed after its initial creation/deserialization and store the changes in a chained PCH. The idea is that the AST entities call methods on the ASTMutationListener to give notifications of changes; the PCHWriter implements the ASTMutationListener interface and stores the incremental changes of the updated entity. WIP git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117235 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19MSVC space optimization.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116797 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-14Allow deserialization of just the fields of a record, when we want to ↵Argyrios Kyrtzidis
iterate over them, instead of deserializing the complete declaration context of the record. Iterating over the fields of a record is very common (e.g to determine the layout), unfortunately we needlessly deserialize every declaration that the declaration context of the record contains; this can be bad for large C++ classes that contain a lot of methods. Fix this by allow deserialization of just the fields when we want to iterate over them. Progress for rdar://7260160. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@116507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Make inline namespace not be transparent after all. The concept simply ↵Sebastian Redl
doesn't fit. Instead, special-case the few places where transparent contexts have the desired behavior for inline namespaces. Fixes a redeclaration issue in inline namespaces. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112637 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Rename DeclContext::getLookupContext to getRedeclContext and change its ↵Sebastian Redl
semantics slightly. No functionality change in the absence of inline namespaces. Also, change a few places where inline namespaces actually make a difference to be prepared for them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112563 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Missed a couple.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112179 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Apparently gcc doesn't always get injected class names right.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112178 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Move things around so that Sema.h no longer depends on even DeclBase.h.John McCall
It still depends on Type because DeclarationName.h does. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112177 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20Fix an issue with writing to PCH another included PCH, introduced by the ↵Argyrios Kyrtzidis
"using an AST on-disk hash table for name lookup" commit. When including a PCH and later re-emitting to another PCH, the name lookup tables of DeclContexts may be incomplete, since we now lazily deserialize the visible decls of a particular name. Fix the issue by iterating over the un-deserialized visible decls and completing the lookup tables of DeclContexts before writing them out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111698 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18More PCH -> AST renaming.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111472 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Do the PCH->AST rename for ASTWriter's implementation parts.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111464 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18Generate Attr subclasses with TableGen.Sean Hunt
Now all classes derived from Attr are generated from TableGen. Additionally, Attr* is no longer its own linked list; SmallVectors or Attr* are used. The accompanying LLVM commit contains the updates to TableGen necessary for this. Some other notes about newly-generated attribute classes: - The constructor arguments are a SourceLocation and a Context&, followed by the attributes arguments in the order that they were defined in Attr.td - Every argument in Attr.td has an appropriate accessor named getFoo, and there are sometimes a few extra ones (such as to get the length of a variadic argument). Additionally, specific_attr_iterator has been introduced, which will iterate over an AttrVec, but only over attributes of a certain type. It can be accessed through either Decl::specific_attr_begin/end or the global functions of the same name. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111455 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Instead of modifying the ObjC AST to not modify existing declarations, teach ↵Sebastian Redl
chained PCH to overwrite declarations from earlier PCH files in dependent ones. Tell Sema to note when it changes AST nodes so that they have to be reserialized. Finally, the ObjCProtocolDecls created in forward decls, like the ObjCInterfaceDecls in @class forward decls, are not lexically part of the decl context; only the definition is. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110989 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27- Fix recording of offsets of types in dependent PCHs.Sebastian Redl
- Stop reading in (and thus deserializing) every declaration in the TU when creating a dependent PCH. - Switch the storage of a decl context's lexical declarations to a blob containing the IDs instead of a record. This is the only sane way of supporting update records later on. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-25Remove the vast majority of the Destroy methods from the AST library,Douglas Gregor
since we aren't going to be calling them ever. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14Increase the max PCH level for declarations to 7. Add a FromPCH flag to types.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-13Instantiate attributes when first building an instantiatedFariborz Jahanian
VarDecl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108218 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12Copy over attributes to instantiated variable.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07Remove Decl::getCompoundBody().Argyrios Kyrtzidis
This has 2 (slight) advantages: -Make explicit at getBody()'s callsite that we expect/handle only CompoundStmt and not CXXTryStmt. -Better tracking of Decl::getBody()'s callsites. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107771 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07Introduce Decl::hasBody() and FunctionDecl::hasBody() and use them instead ↵Argyrios Kyrtzidis
of getBody() when we are just checking the existence of a body, to avoid de-serialization of the body from PCH. Makes de-serialization of the function body even more "lazier". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107768 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Support C++ friend declarations for PCH.Argyrios Kyrtzidis
This commit 'introduces' a slightly different way to restore the state of the AST object. It makes PCHDeclReader/PCHDeclWriter friends and gives them access to the private members of the object. The rationale is to avoid using/modifying the AST interfaces for PCH read/write so that to: -Avoid complications with objects that have side-effects during creation or when using some setters. -Not 'pollute' the AST interface with methods only used by the PCH reader/writer -Allow AST objects to be read-only. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107219 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17Given Decl::isUsed() a flag indicating when to consider the "used"Douglas Gregor
attribute as part of the calculation. Sema::MarkDeclReferenced(), and a few other places, want only to consider the "used" bit to determine, e.g, whether to perform template instantiation. Fixes a linkage issue with Boost.Serialization. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106252 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11Fix PCH issue. Attributes of a declaration were truncated to just one when ↵Argyrios Kyrtzidis
the decl was read from a PCH file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105852 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01Alter the ExternalASTSource interface to permit by-name lookups. PCH ↵John McCall
continues to bring in the entire lookup table at once. Also, give ExternalSemaSource's vtable a home. This is important because otherwise any reference to it will cause RTTI to be emitted, and since clang is compiled with -fno-rtti, that RTTI will contain unresolved references (to ExternalASTSource's RTTI). So this change makes it possible to subclass ExternalSemaSource from projects compiled with RTTI, as long as the subclass's home is compiled with -fno-rtti. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105268 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-30Convert DeclNodes to use TableGen.Sean Hunt
The macros required for DeclNodes use have changed to match the use of StmtNodes. The FooFirst enumerator constants have been named firstFoo to match usage elsewhere. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105165 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07add PCH support for a bunch of C++ Decls, patch byChris Lattner
Andrew Sutton! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103301 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24Recommit r102215, this time being more careful to only set the "principalJohn McCall
declaration" (i.e. the only which will actually be looked up) to have the non-member-operator bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102231 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-24Revert r102215. This causes clang crash while compiling a test case from gdb ↵Devang Patel
testsuite. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102224 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23Transition the last acceptable-result filter kind in LookupResult over to useJohn McCall
a simple IDNS mask by introducing a namespace for non-member operators. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23Recommit my change to how C++ does elaborated type lookups, now withJohn McCall
two bugfixes which fix selfhost and (hopefully) the nightly tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102198 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23Revert "C++ doesn't really use "namespaces" for different kinds of names the ↵Daniel Dunbar
same", which seems to break most C++ nightly test apps. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102174 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23C++ doesn't really use "namespaces" for different kinds of names the sameJohn McCall
way that C does. Among other differences, elaborated type specifiers are defined to skip "non-types", which, as you might imagine, does not include typedefs. Rework our use of IDNS masks to capture the semantics of different kinds of declarations better, and remove most current lookup filters. Removing the last remaining filter is more complicated and will happen in a separate patch. Fixes PR 6885 as well some spectrum of unfiled bugs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102164 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22Kill off IDNS_ObjCImplementation and IDNS_ObjCCategoryName; theyDouglas Gregor
aren't and never were used. There's a gap in the bit pattern for IDNS now, but I'm sure *someone* will fill it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102143 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-31Remove the AST statistics tracking I added yesterday; it didn't pan out.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100027 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30Introduce new AST statistics that keep track of the number of isa (orDouglas Gregor
dyn_cast) invocations for C++ and Objective-C types, declarations, expressions, and statements. The statistics will be printed when -print-stats is provided to Clang -cc1, with results such as: 277073 clang - Number of checks for C++ declaration nodes 13311 clang - Number of checks for C++ expression nodes 18 clang - Number of checks for C++ statement nodes 174182 clang - Number of checks for C++ type nodes 92300 clang - Number of checks for Objective-C declaration nodes 9800 clang - Number of checks for Objective-C expression nodes 7 clang - Number of checks for Objective-C statement nodes 65733 clang - Number of checks for Objective-C type nodes The statistics are only gathered when NDEBUG is not defined, since they introduce potentially-expensive operations into very low-level routines (isa). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99912 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-27Implement method friends in class templates and fix a few related problems.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Implement a framework for the delay of arbitrary diagnostics withinJohn McCall
templates. So delay access-control diagnostics when (for example) the target of a friend declaration is a specific specialization of a template. I was surprised to find that this was required for an access-controlled selfhost. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99383 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-15During C++ name lookup, use DeclContext::Equals() rather thanDouglas Gregor
comparing DeclContext pointers, to avoid having to remember to call getPrimaryContext() everywhere. This is the last part PR6594. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98546 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05When we invalidate a declaration, make it public, so that it doesn'tDouglas Gregor
trigger access control or one of the many assertions we have for valid access specifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97767 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-21Make Decl::isOutOfLine() virtual, and use that to determine when definitionsChandler Carruth
are for out of line declarations more easily. This simplifies the logic and handles the case of out-of-line class definitions correctly. Fixes PR6107. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96729 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-17Fix unused function warning to handle used attributes and redeclarations. ↵Tanya Lattner
Update test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96444 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29Do a little magic and a little greasework to make it much more efficientJohn McCall
to cast a DeclContext down to a specific implementation class. There are still lots of calls to Decl::castFromDeclContext left, mostly arising from DeclContext::getParent(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94786 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-18Move AccessSpecifier into the new Specifiers.h; fixes the layering violationsJohn McCall
inherent in, well, pretty much every use of AccessSpecifier. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93804 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-16When we are instantiating a member function of a local class, be sureDouglas Gregor
to merge the local instantiation scope with the outer local instantiation scope, so that we can instantiate declarations from the function owning the local class. Fixes an assert while instantiating Boost.MPL's BOOST_MPL_ASSERT_MSG. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93651 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-14Rename dump to dumpDeclContext, so that call RD->dump() won't dump the decl ↵Anders Carlsson
context by default. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91256 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-11Patch to fix a crash trying to access a category name inFariborz Jahanian
objective-c++ mode and also removed dead-code in this area. (fixes radar 7456710). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91081 91177308-0d34-0410-b5e6-96231b3b80d8
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