correctly: skipping instructions by incorrectly incrementing the pointer.

Also adds support for building a reg-to-regclass map, and splits the function
for saving register to stack into two, one suitable for virtual registers
(which also assigns it a physical register) and one for simply storing back
physical registers.

llvm-svn: 4898

llvm-svn: 4893

* Added saving of register values to the stack

llvm-svn: 4858

llvm-svn: 4828

llvm-svn: 4782

llvm-svn: 4737

llvm-svn: 4719

llvm-svn: 4649

llvm-svn: 4510

llvm-svn: 4482

after I removed annotations on MachineInstr for the CallDescriptor).

llvm-svn: 4469

llvm-svn: 4447

llvm-svn: 4446

llvm-svn: 4438

llvm-svn: 4435

objects yet don't die

llvm-svn: 4427

llvm-svn: 4426

llvm-svn: 4425

llvm-svn: 4403

llvm-svn: 4400

instead record them as extra operands in the operands[] vector.
Also, move CallArgsDescriptor into this class instead of making it an
annotation on the machine instruction.

llvm-svn: 4399

annotation on the machine instruction.

llvm-svn: 4398

MachineInstr.cpp

llvm-svn: 4392

llvm-svn: 4389

llvm-svn: 4386

llvm-svn: 4383

llvm-svn: 4382

llvm-svn: 4381

llvm-svn: 4380

llvm-svn: 4379

llvm-svn: 4378

llvm-svn: 4377

llvm-svn: 4376

llvm-svn: 4375

llvm-svn: 4366

llvm-svn: 4359

llvm-svn: 4358

llvm-svn: 4357

  by MachineInstr.
* Add a bunch of new methods to allow incremental addition of operands to the
  machine instr instance.

llvm-svn: 4356

llvm-svn: 4351