Misc. serialization changes to ASTContext and Decls.  Serialization
for ASTContext is still rapidly evolving.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43774 91177308-0d34-0410-b5e6-96231b3b80d8

Revampled Serialization Tester to serialize and deserialize out an entire ASTContext and top-level decls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43773 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a "basic" bug that resulted in a bogus SourceLocation.

Off hand, I don't know why this change makes a difference (I thought the two constructor idioms were equivalent).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43770 91177308-0d34-0410-b5e6-96231b3b80d8

improve decl merging logic to be more correct with
functions.  Patch contributed by Nuno Lopes, thanks!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43757 91177308-0d34-0410-b5e6-96231b3b80d8

Add better validation for array types when merging decls.  Patch
contributed by Oliver Hunt, thanks!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43750 91177308-0d34-0410-b5e6-96231b3b80d8

Added registration to deserialization engine of IdentifierInfo* as
IdentifierInfos are deserialized.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43741 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented serialization of TypedefDecls.
Fixed infinite recursion in VarDecl::InternalRead.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43739 91177308-0d34-0410-b5e6-96231b3b80d8

In driver code implemented serialization of ASTContext.  Working on serialization of simple ASTs.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43738 91177308-0d34-0410-b5e6-96231b3b80d8

Added skeleton for dispatch of Decl serialization.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43737 91177308-0d34-0410-b5e6-96231b3b80d8

For serialization of ASTContext, added special-casing of serialization
of type sets when emitting complex types and pointer types that are
also considered builtins.  These types are automatically created in
the ctor of ASTContext, and thus should not be serialized (was
producing an error during deserialization).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43733 91177308-0d34-0410-b5e6-96231b3b80d8

Misc. fixes. 1) Resurrect meta-data generation turned off by a previous patch.
2) Fixed a regression in meta-data generation caused by removal of '_interface' prefix from synthesize class name.
3) Added stubs for @try/@catch/@finally statements.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43716 91177308-0d34-0410-b5e6-96231b3b80d8

Made methods "Emit" and "Materialize" in ASTContext (used for serialization) public.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43713 91177308-0d34-0410-b5e6-96231b3b80d8

Added TypeSerialization.cpp and DeclSerialization.cpp to the XCode project.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43710 91177308-0d34-0410-b5e6-96231b3b80d8

Sema::ActOnClassMessage()...if a class method isn't found, lookup an instance method. Since all classes are also instances, this is appropriate.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43708 91177308-0d34-0410-b5e6-96231b3b80d8

Declare objc_selector outside the prototype for objc_msgSend(), removing a silly warning.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43706 91177308-0d34-0410-b5e6-96231b3b80d8

Rewrite @selector(sel).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43705 91177308-0d34-0410-b5e6-96231b3b80d8

- change the synthesized typedef (for classes) to be of type "objc_object".
- fix a couple bugs in RewriteObjCStringLiteral.
- convert "Class" -> "id" in RewriteMessageExpr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43704 91177308-0d34-0410-b5e6-96231b3b80d8

Remove HandleObjcMetaDataEmission(), I inadvertantly resurrected it.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43690 91177308-0d34-0410-b5e6-96231b3b80d8

Two additions...

- Synthesize the funky cast for objc_msgSend(). For the basic case, it looks like...

((id (*)(id, SEL))(void *)objc_msgSend)(obj, sel);

The "void *" cast is needed to workaround a GCC "bandaid" (Chris says it has something to do with the inliner). Without the extra "void *" cast, we get spurious warnings/notes that look like...

xx.m:17: warning: function called through a non-compatible type
xx.m:17: note: if this code is reached, the program will abort

- Add prototypes for the ObjC functions we call, objc_msgSend/objc_getClass for now (don't depend on them being included).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43685 91177308-0d34-0410-b5e6-96231b3b80d8

Add a method prototype slot/getter to the ObjCMessageExpr AST.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43666 91177308-0d34-0410-b5e6-96231b3b80d8

Implement rewrite rules for ObjC string constants.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43665 91177308-0d34-0410-b5e6-96231b3b80d8

Fix ownership model of ParseAST to allow the dtor of
ASTConsumer to process the AST before it is destroyed.
This allows elimination of HandleObjcMetaDataEmission.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43659 91177308-0d34-0410-b5e6-96231b3b80d8

Provide both const and non-const accessor methods for @try and @finally ASTs.
My previous patch did the same for @catch AST.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43654 91177308-0d34-0410-b5e6-96231b3b80d8

Provide const and none-const version of methods accessing various @catch nodes

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43653 91177308-0d34-0410-b5e6-96231b3b80d8

pretty-print @try/@catch/@finally from AST as the validation of AST.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43649 91177308-0d34-0410-b5e6-96231b3b80d8

Added most of the boilerplate code for Decl serialization.  Still a few
key functions to implement.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43648 91177308-0d34-0410-b5e6-96231b3b80d8

Expose InsertText, fixing an oversight.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43643 91177308-0d34-0410-b5e6-96231b3b80d8

Generate code for member exprs.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43641 91177308-0d34-0410-b5e6-96231b3b80d8

AST for @try statement.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43640 91177308-0d34-0410-b5e6-96231b3b80d8

Updated VC++ build system

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43632 91177308-0d34-0410-b5e6-96231b3b80d8

AST for @finally statement.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43629 91177308-0d34-0410-b5e6-96231b3b80d8

AST build for @catch clause (this is work in progress).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43628 91177308-0d34-0410-b5e6-96231b3b80d8

Simplified Serialization code for SourceLocation and SourceRange, and
updated it to the recently updated Serialization API.

Changed clients of SourceLocation serialization to call the
appropriate new methods.

Updated Decl serialization code to put new skeleton serialization code
in place that is much better than the older trait-specialization
approach.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43625 91177308-0d34-0410-b5e6-96231b3b80d8

Bunch of class declarations for objective-c's @try-catch statement.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43623 91177308-0d34-0410-b5e6-96231b3b80d8

Rename classes and collections that maintain record layout information.
Now, at AST level record info is maintained by ASTRecordLayout class.
Now, at code gen  level record info is maintained by CGRecordLayout class.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43619 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented serialization of QualTypes within ASTContext.  Clarified
ownership model of some type pointers.  Added FIXMEs to serialization.

Added comments to ASTContext indicating which variables we are intentionally
*not* serializing.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43618 91177308-0d34-0410-b5e6-96231b3b80d8

Remaining work to collect objective-c's type qualifiers and use them to encode
method types.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43617 91177308-0d34-0410-b5e6-96231b3b80d8

- Remove _interface_ prefix for the synthesized tag names.
- Also removed a tab from the generated struct (minor).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43616 91177308-0d34-0410-b5e6-96231b3b80d8

Changed serialization/deserialization of BuiltinTypes to explicitly serialize
each type.  This ensures that the order in which the types are serialized
is clear and remains persistent.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43615 91177308-0d34-0410-b5e6-96231b3b80d8

Reverted unnecessary inlining of operator!=, since negating operator== is
just as efficient and much more succinct.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43614 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate bitfield info.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43613 91177308-0d34-0410-b5e6-96231b3b80d8

Implement rewrite rule for commenting out protocol references. For example:

extern id /*<NSObject>*/ NSAllocateObject(Class aClass, unsigned extraBytes, NSZone *zone);

extern void NSDeallocateObject(id /*<NSObject>*/object);

extern id /*<NSObject>*/ NSCopyObject(id /*<NSObject>*/object, unsigned extraBytes, NSZone *zone);

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43612 91177308-0d34-0410-b5e6-96231b3b80d8

add support for vector type compatibility checking. Patch by Nate Begeman.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43604 91177308-0d34-0410-b5e6-96231b3b80d8

Tweak RewriteInterfaceDecl() to generate a typedef (if one hasn't already been generated).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43600 91177308-0d34-0410-b5e6-96231b3b80d8

Implement test/Sema/init.c by treating functions as constants.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43599 91177308-0d34-0410-b5e6-96231b3b80d8

Put constant CFStrings in the __DATA,__cfstring section.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43593 91177308-0d34-0410-b5e6-96231b3b80d8

Stub out codegen for __builtin_constant_p. Remove any implicit cast exprs in the call to __builtin___CFStringMakeConstantString.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43592 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unnecessary method.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43591 91177308-0d34-0410-b5e6-96231b3b80d8

start adding pading fields.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43590 91177308-0d34-0410-b5e6-96231b3b80d8

1) More additions for objective-c's qualifier type.
2) Fixed a test failure (which should have failed all along!).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43589 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo that prevented pointer-to-int conversions from working.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43588 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor code into a separate method.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43587 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed a bug exposed by fixing the assert in previous patch (one of the tests asserted).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43586 91177308-0d34-0410-b5e6-96231b3b80d8

Changed direction of assert. Added more comments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43585 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented more of serialization/deserialization for ASTContext.  We now
(hypothetically) read in/write out most of the types.  Bugs likely exist.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43584 91177308-0d34-0410-b5e6-96231b3b80d8

Fix two rewriter bugs:

- For @class, don't generate multiple typedefs.
- Handle the following edge case interface...

@interface NSMiddleSpecifier : NSObject {}

@end

...which was incorrectly being rewritten to...

struct _interface_NSMiddleSpecifier {
        struct _interface_NSObject _NSObject;
};
{}

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43582 91177308-0d34-0410-b5e6-96231b3b80d8

Handle function calls that return aggregate expressions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43581 91177308-0d34-0410-b5e6-96231b3b80d8

More infrastructure to recognize objective-c's type qualifiers (in,inout, etc.)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43580 91177308-0d34-0410-b5e6-96231b3b80d8

New test to verify llvm struct layout.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43577 91177308-0d34-0410-b5e6-96231b3b80d8

Check whether next slot meets field type's alignment requirements.
If it does not then assert at the moment.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43576 91177308-0d34-0410-b5e6-96231b3b80d8

Implement ObjC built-in types in MinimalAction.

This fixes the recent regression with selector-1.m and -parse-noop.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43575 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented short-circuited version of Builtin::Info::operator!=.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43574 91177308-0d34-0410-b5e6-96231b3b80d8

Keep track of field offsets during structure layout.
Take 2.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43573 91177308-0d34-0410-b5e6-96231b3b80d8

Take 2.

Make target info available to clang code generator.  This is far from complete but this helps clang codegen module make progress.

At the moment target triplet and target description strings are hard coded in clang::TargetInfo

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43572 91177308-0d34-0410-b5e6-96231b3b80d8

Adjusted QualType deserialization to reflect updated deserialization API.

We now serialize ivar references inside of ASTContext.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43571 91177308-0d34-0410-b5e6-96231b3b80d8

Initialize MemCpyFn

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43569 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed problem with rewriting stand-alone @implementation (with no matching @interface).
A new test case added.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43568 91177308-0d34-0410-b5e6-96231b3b80d8

Implement a more sensible strategy for ObjC built-in types (addressing a long standing FIXME in Sema::GetObjcIdType()).

This removes several gross hacks to work around the previous "lazy" behavior.

Two notes:
- MinimalActions still needs to be taught about the built-in types (This breaks one of the -noop test cases). I started this, then added a FIXME.
- I didn't convert Sema::GetObjcProtoType() yet.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43567 91177308-0d34-0410-b5e6-96231b3b80d8

Preliminary support for serializing statements.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43566 91177308-0d34-0410-b5e6-96231b3b80d8

Updated path to clang.cpp in build documentation.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43564 91177308-0d34-0410-b5e6-96231b3b80d8

Updated build instructions to not include an absolute line number in clang.cpp to add hard-coded paths.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43563 91177308-0d34-0410-b5e6-96231b3b80d8

Updated a comment to hopefully silence a Lattner warning.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43562 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented serialization of Variable Array Types (VLAs).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43561 91177308-0d34-0410-b5e6-96231b3b80d8

Rewriteing of ivars changed to just copy directly from the source.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43560 91177308-0d34-0410-b5e6-96231b3b80d8

Renamed ivar "ArrayTypes" in ASTContext to "ComplexArrayTypes".

Added skeleton code for serialization of ASTContext.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43558 91177308-0d34-0410-b5e6-96231b3b80d8

Checking in some code that is still under construction.

I need to (finally) change the way Class/id/SEL/IMP are built-in...the current approach of doing it in the preprocessor is "broken". The other problem is Sema::GetObjcIdType/GetObjcSelType/GetObjcClassType, the hooks that initialize ASTContext lazily. These built-in types need to be done up front...

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43557 91177308-0d34-0410-b5e6-96231b3b80d8

After Anders check-in, we can now encode 'Class' type.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43556 91177308-0d34-0410-b5e6-96231b3b80d8

Added a few clarifying steps the the "building clang" section.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43555 91177308-0d34-0410-b5e6-96231b3b80d8

temporarily revert devang's patch to link in the llvm codegen etc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43544 91177308-0d34-0410-b5e6-96231b3b80d8

Add some plumbing to help cope with rewriting "id<p>", "Class<p>*".

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43543 91177308-0d34-0410-b5e6-96231b3b80d8

Encode Class, SEL and Objective-C objects.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43540 91177308-0d34-0410-b5e6-96231b3b80d8

Keep track of field offsets during structure layout.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43539 91177308-0d34-0410-b5e6-96231b3b80d8

Make target info available to clang code generator.
This is far from complete but this helps clang codegen module
make progress.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43536 91177308-0d34-0410-b5e6-96231b3b80d8

Added new type and bitfield fields in some decl types in preparation for objective-c's type qualifiers.
Added initialization of Class/SEMA types.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43534 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid unnecessary PATypeHolder copy.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43530 91177308-0d34-0410-b5e6-96231b3b80d8

Stop pre-defining objc_msgSend/objc_getClass in the preprocessor. Instead, I generate these declaration on the fly when rewriting a message expression.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43529 91177308-0d34-0410-b5e6-96231b3b80d8

Updated some comments.
Disabled assignments for ContentCache.
Copy-ctor for ContentCache now has an assertion preventing it to
be copied from an object that already has an allocated buffer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43526 91177308-0d34-0410-b5e6-96231b3b80d8

__real__ and __imag__ can be lvalues.  Add support to ast and codegen for them.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43525 91177308-0d34-0410-b5e6-96231b3b80d8

Refactored CFG construction code that processes DeclStmts to use StmtIterator.
Now CFG construction transparently supports Variable Length Array declarations
with expressions for their sizes, and typedefs that include VLAs.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43520 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor code into a separate method.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43519 91177308-0d34-0410-b5e6-96231b3b80d8

Removed SrcMgr::FileInfo and SrcMgr::InfoRec and replaced them with a
single class: ContentCache.  This simplifies the logic in
SourceManager and makes the ownership of MemoryBuffers clearer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43518 91177308-0d34-0410-b5e6-96231b3b80d8

Tightened IgnoreParen.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43517 91177308-0d34-0410-b5e6-96231b3b80d8

Fix 80 col violations.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43516 91177308-0d34-0410-b5e6-96231b3b80d8

minor tweaks

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43515 91177308-0d34-0410-b5e6-96231b3b80d8

Use
+  llvm::DenseMap<Type *, llvm::PATypeHolder> TypeHolderMap;
instead of
-  llvm::DenseMap<Type *, llvm::PATypeHolder *> TypeHolderMap;

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43514 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed tests.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43513 91177308-0d34-0410-b5e6-96231b3b80d8

minor code cleanup

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43512 91177308-0d34-0410-b5e6-96231b3b80d8

shrinkify storage class to a bitfield, add a fixme about merging it in the future.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43509 91177308-0d34-0410-b5e6-96231b3b80d8

Remove commented out line.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43508 91177308-0d34-0410-b5e6-96231b3b80d8

Revisited my last patch to be able to do encoding of ivar types with 'id'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43507 91177308-0d34-0410-b5e6-96231b3b80d8