Add a type (ObjCObjectPointerType) and remove a type (ObjCQualifiedIdType).

This large/tedious patch is just a first step. Next step is to remove ObjCQualifiedInterfaceType. After that, I will remove the magic TypedefType for 'id' (installed by Sema). This work will enable various simplifications throughout clang (when dealing with ObjC types). 

No functionality change.

llvm-svn: 73649

llvm-svn: 73604

It is possible that main input file does not have any symbol with debug info. To  handle this edge case, always create main compile unit first.
This fixes PR 4228.

llvm-svn: 73520

llvm-svn: 73462

"GCC emits an __objc_class_name_{classname} symbol for every class, and a corresponding reference to this symbol for every compilation unit that references the class.  This causes linker errors when you try linking a program which references some classes but doesn't define them.  The attached patch implements this support in clang, so you can compile a class with clang, reference it in a file compiled with GCC, and have it all work correctly."

Patch by David Chisnall!

llvm-svn: 73364

static intializers for structs.

llvm-svn: 73349

preprocessor and initialize it early in clang-cc.  This
ensures that __has_builtin works in all modes, not just
when ASTContext is around.

llvm-svn: 73319

fixes a layering violation in lib/Basic/Targets.cpp.

llvm-svn: 73318

llvm-svn: 73316

the check for extern "c" system headers, which should prevent functiondecls
from being mangled.

llvm-svn: 73311

x86-32.  This is slightly messy, but I think it's consistent with gcc.

llvm-svn: 73306

always_inline from working.

llvm-svn: 73273

llvm-svn: 73208

llvm-svn: 73158

llvm-svn: 73022

get rid of a few more clang vector builtins.

llvm-svn: 73015

insert/extract; the relevant instructions are defined to take only an 
i32.

llvm-svn: 73005

zero/sign extension logic (consider, e.g. target has only 64 bit registers and thus
i32's should be extended as well).

llvm-svn: 72998

llvm-svn: 72996

___Block_byref_id_object_dispose and ___Block_byref_id_object_copy
functions so that we can simply reuse instead of creating a new one.
Additionally, add an assert to ensure no one yet tries to align a
__block variable beyond the alignment of a pointer as the codegen is
incomplete.

llvm-svn: 72974

 - <rdar://problem/6948703> clang treats weak_import like weak

llvm-svn: 72967

llvm-svn: 72963

llvm-svn: 72962

llvm-svn: 72961

when generating a coercion for ABI handling purposes.
 - This may only manifest itself when building at -O0, but the practical effect
   is that other arguments may get clobbered.

 - <rdar://problem/6930451> [irgen] ABI coercion clobbers other arguments

llvm-svn: 72932

llvm-svn: 72910

llvm-svn: 72902

function of interest, not an operand of it.

llvm-svn: 72869

llvm-svn: 72842

llvm-svn: 72838

llvm-svn: 72837

llvm-svn: 72835

llvm-svn: 72831

llvm-svn: 72827

llvm-svn: 72814

llvm-svn: 72803

llvm-svn: 72796

llvm-svn: 72793

llvm-svn: 72792

Also, committing an #if 0'ed __builtin_setjmp and __builtin_longjmp 
implementation I've had sitting in my tree for a while.  I haven't 
enabled it because the LLVM backend support isn't complete yet.

llvm-svn: 72727