- Refactor caching logic into a helper class PTHSpellingSearch
- Allow "random accesses" in the spelling cache, thus catching the remaining
  cases where 'getSpelling' wasn't hitting the PTH cache
  
For -Eonly, PTH, Cocoa.h:
- This reduces wall time by 3% (user time unchanged, sys time reduced)
- This reduces the amount of paged source by 1112K.
  The remaining 1112K still being paged in is from somewhere else
  (investigating).

llvm-svn: 62009

llvm-svn: 62008

in designated protocols lazily.

llvm-svn: 62007

llvm-svn: 62004

llvm-svn: 62003

of ScopedDecls (using the new ScopedDecl::NextDeclInScope
pointer). Performance-wise:

  - It's a net win in memory utilization, since DeclContext is now one
    pointer smaller than it used to be (std::vectors are typically 3
    pointers; we now use 2 pointers) and 
  - Parsing Cocoa.h with -fsyntax-only (with a Release-Asserts Clang)
    is about 1.9% faster than before, most likely because we no longer
    have the memory allocations and copying associated with the
    std::vector.

I'll re-enable serialization of DeclContexts once I've sorted out the
NextDeclarator/NextDeclInScope question.

llvm-svn: 62001

llvm-svn: 61998

Always print out SourceManager stats with 'Stats' is true.  This revealed that PTH always pulls in the source pages with -fsyntax-only (investigating further).

llvm-svn: 61996

filters the decls seen by decl_iterator with two criteria: the dynamic
type of the declaration and a run-time predicate described by a member
function. This simplifies EnumDecl, RecordDecl, and ObjCContainerDecl
considerably. It has no measurable performance impact.

llvm-svn: 61994

llvm-svn: 61993

crashes.

llvm-svn: 61992

Add isa/cast/dyncast support for ObjCContainerDecl.
Renamed classprop_iterator/begin/end to prop_iterator/begin/end (the class prefix was confusing).
More simplifications to Sema::ActOnAtEnd()...
Added/changed some FIXME's as a result of the above work.

llvm-svn: 61988

llvm-svn: 61975

matches llvm-gcc (?).

llvm-svn: 61974

llvm-svn: 61973

llvm-svn: 61970

categories.
 - Also, simplify nesting via early return.

llvm-svn: 61968

 - For use by the driver in places where the host alters driver
   behavior (for example, running as a driver driver on darwin).

 - Allow user override for testing purposes.

llvm-svn: 61967

rewrite @class declarations that showed up within linkage
specifications because those @class declarations never made it any
place where the rewriter could find them.

Moved all of the ObjC*Decl nodes over to ScopedDecls, so that they can
live in the appropriate top-level or transparent DeclContext near the
top level, e.g., TranslationUnitDecl or LinkageSpecDecl. Objective-C
declarations now show up in a traversal of the declarations in a
DeclContext (they didn't before!). This way, the rewriter finds all
Objective-C declarations within linkage specifications.

llvm-svn: 61966

llvm-svn: 61965

parameter list. This is work in progress.

llvm-svn: 61964

llvm-svn: 61963

Simpler solution to LiteralSupport compatibility: just add one whitespace character after each cached string.

llvm-svn: 61962

llvm-svn: 61961

llvm-svn: 61960

llvm-svn: 61958

llvm-svn: 61957

PTH: For the cached spellings of literals, store one whitespace character after the spelling to accomodate sanity checking in LiteralSuppoert.cpp.

llvm-svn: 61956

llvm-svn: 61954

are related to setter syntax under -Wreadonly-setter-attrs
to prevent warnings in projects built with gcc.

llvm-svn: 61953

Revert my previous, failed attempt to pretty-print anonymous struct/union accesses well. Added a FIXME so we know to revisit this later

llvm-svn: 61951

Fix ObjCInterfaceDecl::Destroy and ObjCProtocolDecl::Destroy to iterate and destroy all contained ObjCMethodDecls in one sweep.  This fixes a use-after-free error found by valgrind.

llvm-svn: 61943

llvm-svn: 61942

Added iterator mechanism to ObjCContainerDecl to iterate over both class and instance methods at the same time.

llvm-svn: 61941

introduce a Scope for the body of a tag. This reduces the number of
semantic differences between C and C++ structs and unions, and will
help with other features (e.g., anonymous unions) in C. Some important
points:

  - Fields are now in the "member" namespace (IDNS_Member), to keep
    them separate from tags and ordinary names in C. See the new test
    in Sema/member-reference.c for an example of why this matters. In
    C++, ordinary and member name lookup will find members in both the
    ordinary and member namespace, so the difference between
    IDNS_Member and IDNS_Ordinary is erased by Sema::LookupDecl (but
    only in C++!). 
  - We always introduce a Scope and push a DeclContext when we're
    defining a tag, in both C and C++. Previously, we had different
    actions and different Scope/CurContext behavior for enums, C
    structs/unions, and C++ structs/unions/classes. Now, it's one pair
    of actions. (Yay!)

There's still some fuzziness in the handling of struct/union/enum
definitions within other struct/union/enum definitions in C. We'll
need to do some more cleanup to eliminate some reliance on CurContext
before we can solve this issue for real. What we want is for something
like this:

  struct X {
    struct T { int x; } t;
  };

to introduce T into translation unit scope (placing it at the
appropriate point in the IdentifierResolver chain, too), but it should
still have struct X as its lexical declaration
context. PushOnScopeChains isn't smart enough to do that yet, though,
so there's a FIXME test in nested-redef.c

llvm-svn: 61940

llvm-svn: 61939

llvm-svn: 61938

llvm-svn: 61937

Moved logic to Sema::ProcessPropertyDecl().

llvm-svn: 61936

Convert clients to use the standard getDeclContext() API.

Doug, thanks for the review!

llvm-svn: 61935