llvm-svn: 42823

Surprisingly complicated.
Adds getTargetNode for 2 outputs, no inputs (missing).

llvm-svn: 42822

llvm-svn: 42821

Fix an extremely stupid bug that prevented first round of coalescing (physical registers only) from happening.

llvm-svn: 42820

llvm-svn: 42819

predefined macros.  Previously, these were handled by the driver,
now they are handled by the preprocessor.

Some fallout of this:

1. Instead of preprocessing two buffers (the predefines, then the 
   main source file)  we now start preprocessing the main source 
   file and inject the predefines as a "psuedo #include" from the
   main source file.
2. #1 allows us to nuke the Lexer::IsMainFile flag and simplify
   Preprocessor::isInPrimaryFile.
3. The driver doesn't have to know about standard #defines, the
   preprocessor knows, which is nice for people wanting to define
   their own drivers.
4. This allows us to put normal tokens in the predefine buffer,
   for example a definition for __builtin_va_list that is 
   target-specific, and a typedef for id in objc.

llvm-svn: 42818

Make sure methods with no return type default to "id".

This fixes a crasher in Sema::MatchTwoMethodDeclarations(), identified by selector-overload.m (just added).

Added Action::ActOnTranslationUnitScope() and renamed Action::PopScope to ActOnPopScope.

Added a Translation Unit Scope instance variable to Sema (will be very useful to ObjC-related actions, since ObjC declarations are always file-scoped).

llvm-svn: 42817

ADT/DenseSet.h
ADT/ImmutableMap.h
ADT/ImmutableSet.h

llvm-svn: 42816

llvm-svn: 42815

llvm-svn: 42814

implemented on top of a functional AVL tree.  The AVL balancing code
is inspired by the OCaml implementation of Map, which also uses a functional
AVL tree.

Documentation is currently limited and cleanups are planned, but this code
compiles and has been tested.

llvm-svn: 42813

Do not walk invalid iterator.

llvm-svn: 42812

llvm-svn: 42811

llvm-svn: 42810

llvm-svn: 42809

llvm-svn: 42808

llvm-svn: 42807

llvm-svn: 42806

llvm-svn: 42805

llvm-svn: 42804

llvm-svn: 42803

llvm-svn: 42802

DenseMap to keep track of such declarations and derive ObjcProtocolDecl
directyly from NamedScope.

llvm-svn: 42801

llvm-svn: 42800

llvm-svn: 42799

llvm-svn: 42798

llvm-svn: 42797

llvm-svn: 42796

stuff like this:

       // If we don't have a comma, it is either the end of the list (a ';') or
       // an error, bail out.
       if (Tok.isNot(tok::comma))
         break;
instead of:
       // If we don't have a comma, it is either the end of the list (a ';') or
       // an error, bail out.
       if (Tok.getKind() != tok::comma)
         break;

There is obviously no functionality change, but the code reads a bit better and is 
more terse.

llvm-svn: 42795

llvm-svn: 42794

ParseFunctionDefinition so that ActOnFunctionDefBody is always
called if ActOnStartOfFunctionDef is called.  This fixes a crash
reported by Nuno Lopes.

llvm-svn: 42793

Use copy for LHS, because it is incremented using ++ operator.

llvm-svn: 42792

llvm-svn: 42791

fatal error of category's undefined interface.

llvm-svn: 42790

llvm-svn: 42789

llvm-svn: 42788

llvm-svn: 42787

llvm-svn: 42786

llvm-svn: 42785

instead of four.

llvm-svn: 42784