llvm-svn: 15569

1. Fix a REALLY nasty cyclic replacement issue that Anshu discovered, causing
   nondeterminstic crashes and memory corruption.
2. For performance, don't go inserting constantexpr casts of GV pointers.

This should definitely go into 1.3

llvm-svn: 15568

should go into 1.3

llvm-svn: 15567

been initialized.

llvm-svn: 15565

llvm-svn: 15564

llvm-svn: 15563

llvm-svn: 15555

llvm-svn: 15543

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

Thanks Nate!

llvm-svn: 15531

llvm-svn: 15527

llvm-svn: 15522

incorrect type.

llvm-svn: 15519

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

llvm-svn: 15506

* Fix alignment of code
* Tabs to spaces

llvm-svn: 15505

llvm-svn: 15504

llvm-svn: 15501

llvm-svn: 15500

llvm-svn: 15498

llvm-svn: 15496

llvm-svn: 15495

llvm-svn: 15494

llvm-svn: 15490

llvm-svn: 15489

llvm-svn: 15487

llvm-svn: 15486

llvm-svn: 15485

llvm-svn: 15483

llvm-svn: 15482

gccld -disable-opt on 252.eon.

This patch deletes it and replaces it with a map.  The proper fix for this
is to fix PR411, but this will do in the short term.

gccld on eon now takes 5.51s, which is 50% faster than before this patch. :)

llvm-svn: 15480

instead of InstrSelection.h, which is dead.

llvm-svn: 15476

the def. of TmpInstruction, instead of InstrSelection.h, which is
dead.

llvm-svn: 15475

createSparcV9BurgInstSelector().

llvm-svn: 15474

up the definition of class TmpInstruction.

llvm-svn: 15473