- This ensures that references to undefined classes cause link
   errors.
 - NOTE: This relies on platform specific asm directives currently,
   this should be factored out.

Also, don't emit a SYMBOLS metadata entry if there are no symbols.

llvm-svn: 55302

llvm-svn: 55299

llvm-svn: 55298

llvm-svn: 55297

llvm-svn: 55287

llvm-svn: 55286

llvm-svn: 55284

llvm-svn: 55283

llvm-svn: 55281

llvm-svn: 55280

llvm-svn: 55278

llvm-svn: 55277

llvm-svn: 55276

llvm-svn: 55274

llvm-svn: 55272

llvm-svn: 55269

an APInt directly to an ostream now, so add some hacks.  It would
be better to switch all of the bugreport (and friends) stuff over
to raw_ostream.

llvm-svn: 55264

llvm-svn: 55262

Make sure to create CXX record decls for the implicit Obj-C type declarations. This lets us compile Cocoa.h as Objective-C++

llvm-svn: 55261

 - Use CCC_ECHO to control echoing behavior (default is on, set to ''
   or unset to disable)
 - Get 'clang','llc','as','cc','ld' executables from environment. 'cc'
   and 'ld' are fetched through CCC_CC and CCC_LD respectively -- to
   support make CC=ccc -- the others are through their upcased
   versions.
 - Add CCC_NATIVE mode.
   o This uses llc and as to generate native object files; allowing
     more drop-in replacement of gcc.
   o Disabled by default, but should eventually be default.
   o Allow --emit-llvm in CCC_NATIVE mode to override. Essentially
     this makes ccc more like a drop in replacement for llvm-gcc.
 - Prevent explicit -x <language> options from annoying clang.

llvm-svn: 55260

llvm-svn: 55255

llvm-svn: 55254

llvm-svn: 55253

llvm-svn: 55250

llvm-svn: 55249

llvm-svn: 55247

llvm-svn: 55245

llvm-svn: 55244

 - Use CodeGenModule::GetAddrOfConstantCFString

Some tweaks of CodeGenModule::GetAddrOfConstantCFString

llvm-svn: 55243

llvm-svn: 55242

llvm-svn: 55241

llvm-svn: 55240

llvm-svn: 55237

Make sure there's no "dangling" backtrack position when Preprocessor is destroyed.

llvm-svn: 55236

llvm-svn: 55235

Implement Obj-C lvalue message sends (aggregate returns).

Update several places to emit more precise ErrorUnsupported warnings
  for currently unimplemented Obj-C features (main missing chunks are
  property references, Obj-C exception handling, and the for ... in
  syntax).

llvm-svn: 55234

 - Simplify the sending code a bit.

llvm-svn: 55232

 - Used to autoselect runtime when neither -fnext-runtime nor
   -fgnu-runtime is specified.
 - Default impl is false, all darwin targets set it to true.

llvm-svn: 55231

llvm-svn: 55225

 - Returns an RValue.
 - Reduced to only taking the CodeGenFunction, Expr, and Receiver.
 - Becomes responsible for emitting the arguments.

Add CodeGenFunction::EmitCallExprExt
 - Takes optional extra arguments to insert at the head of the call.
 - This allows the Obj-C runtimes to call into this and isolates the
   argument and call instruction generation code to one place. Upshot
   is that we now pass structures (more) correctly.

Also, fix one aspect of generating methods which take structure
arguments (for NeXT). This probably needs to be merged with the
SetFunctionAttributes code in CodeGenModule.cpp

llvm-svn: 55223