can be called from within a debuger without having -debug specified
on the command-line.

llvm-svn: 48298

llvm-svn: 48297

llvm-svn: 48296

llvm-svn: 48295

getCopyToParts problem was noticed by the new
LegalizeTypes infrastructure.  In order to avoid
this kind of thing in the future I've added a
check that EXTRACT_ELEMENT is only used with
integers.  Once LegalizeTypes is up and running
most likely BUILD_PAIR and EXTRACT_ELEMENT can
be removed, in favour of using apints instead.

llvm-svn: 48294

llvm-svn: 48290

1. There is now a "PAListPtr" class, which is a smart pointer around
   the underlying uniqued parameter attribute list object, and manages
   its refcount.  It is now impossible to mess up the refcount.
2. PAListPtr is now the main interface to the underlying object, and
   the underlying object is now completely opaque.
3. Implementation details like SmallVector and FoldingSet are now no
   longer part of the interface.
4. You can create a PAListPtr with an arbitrary sequence of
   ParamAttrsWithIndex's, no need to make a SmallVector of a specific 
   size (you can just use an array or scalar or vector if you wish).
5. All the client code that had to check for a null pointer before
   dereferencing the pointer is simplified to just access the 
   PAListPtr directly.
6. The interfaces for adding attrs to a list and removing them is a
   bit simpler.

Phase #2 will rename some stuff (e.g. PAListPtr) and do other less 
invasive changes.

llvm-svn: 48289

Use the "used" attribute. Without it, g++ removes all the meta-data:-( This doesn't happen when compiling straight C code.

llvm-svn: 48287

from the sources, and to try and generate only a single path from sources
to roots.

llvm-svn: 48286

llvm-svn: 48285

-Wrap objc runtime calls with "extern "C"" (for now).

llvm-svn: 48284

llvm-svn: 48283

Improve the return slot optimization to be both more aggressive (not limited to sret parameters), and 
safer (when the passed pointer might be invalid).  Thanks to Duncan and Chris for the idea behind this, 
and extra thanks to Duncan for helping me work out the trap-safety.

llvm-svn: 48280

X86 lowering normalize vector 0 to v4i32. However DAGCombine can fold (sub x, x) -> 0 after legalization. It can create a zero vector of a type that's not expected (e.g. v8i16). We don't want to disable the optimization since leaving a (sub x, x) is really bad. Add isel patterns for other types of vector 0 to ensure correctness. It's highly unlikely to happen other than in bugpoint reduced test cases.

llvm-svn: 48279

llvm-svn: 48278

feed the PHI instructions.  We'll need these IDs in order to update LiveIntervals properly.

llvm-svn: 48277

llvm-svn: 48276

This should "fix" all but one of the test failure.

llvm-svn: 48275

llvm-svn: 48274

llvm-svn: 48273

llvm-svn: 48272

llvm-svn: 48271

LoadLibraryPermanently. The current code modifies the value of a pointer
that is passed by value, so the caller never gets the message.

Patch by Julien Lerouge!

llvm-svn: 48270

llvm-svn: 48269

llvm-svn: 48268

llvm-svn: 48267

Make ivar rewrite C++ friendly (since C++ forces a unified namespace for typedefs/structures). The previous version of the rewriter generated both a type def and structure def for each class (which doesn't fly in C++).

llvm-svn: 48266

the automated CallingConv code to handle return values typically
don't support multiple return values.

llvm-svn: 48265

llvm-svn: 48264

llvm-svn: 48263

llvm-svn: 48262

llvm-svn: 48261

llvm-svn: 48260

llvm-svn: 48259

llvm-svn: 48258

llvm-svn: 48257

that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.

llvm-svn: 48256

llvm-svn: 48255

llvm-svn: 48254

llvm-svn: 48253