Changes commited for Nate Begeman:

Use a PowerPC specific prolog epilog inserter to control where spilled
callee save regs are placed on the stack.
Get rid of implicit return address stack slot, save return address reg
(LR) in appropriate slot
Improve code generated for functions that don't have calls or access
globals


Note from Chris: PowerPCPEI will eventually be eliminated, once the
functionality is merged into CodeGen/PrologEpilogInserter.cpp

llvm-svn: 15536

llvm-svn: 15535

assume Louis also holds copyright.

llvm-svn: 15534

llvm-svn: 15533

* Wrap long lines to 80 cols

llvm-svn: 15532

Thanks Nate!

llvm-svn: 15531

llvm-svn: 15530

llvm-svn: 15529

llvm-svn: 15527

llvm-svn: 15526

llvm-svn: 15525

* Fit used libraries on a few lines

llvm-svn: 15524

llvm-svn: 15522

llvm-svn: 15521

incorrect type.

llvm-svn: 15519

llvm-svn: 15516

llvm-svn: 15515

llvm-svn: 15514

llvm-svn: 15513

rid of compilation warnings on some platforms.

llvm-svn: 15512

nonunifiable types but the same name.  Down with PR411!

llvm-svn: 15511

llvm-svn: 15510

llvm-svn: 15509

* Shorten assert() text to make it fit within 80 cols

llvm-svn: 15508

llvm-svn: 15507

llvm-svn: 15506

* Fix alignment of code
* Tabs to spaces

llvm-svn: 15505

llvm-svn: 15504

* Add UIUC copyright notice headers

llvm-svn: 15503

llvm-svn: 15502

llvm-svn: 15501

llvm-svn: 15500

llvm-svn: 15498

llvm-svn: 15497

llvm-svn: 15496

llvm-svn: 15495

llvm-svn: 15494

llvm-svn: 15490

llvm-svn: 15489

llvm-svn: 15488