For instructions that define multiple results, use the right regclass
to define the result, not always the rc of result #0

llvm-svn: 23580

llvm-svn: 23579

llvm-svn: 23578

These are used to represent float and double values, and the two regclasses
contain the same physical registers.

llvm-svn: 23577

This is Jim's feature implemented so that graphs could 'opt-in' and get
this behavior.  This is currently used by selection dags.

llvm-svn: 23576

llvm-svn: 23575

llvm-svn: 23574

2. Printing node groups when displaying nodes.

llvm-svn: 23573

llvm-svn: 23572

llvm-svn: 23571

llvm-svn: 23570

llvm-svn: 23569

llvm-svn: 23568

llvm-svn: 23567

2. Added node groups to handle flagged nodes.

3. Started weaning simple scheduling off existing emitter.

llvm-svn: 23566

llvm-svn: 23565

llvm-svn: 23564

llvm-svn: 23563

llvm-svn: 23562

trim down the target info structs now that we have a preferred spill register class for each callee save register

Why is V9 maintaining these tables manually? ugh!

llvm-svn: 23561

trim down the target info structs now that we have a preferred spill register class for each callee save register

llvm-svn: 23560

llvm-svn: 23559

llvm-svn: 23558

llvm-svn: 23557

class into the spill/reload methods.  Targets can now rely on that argument.

llvm-svn: 23556

llvm-svn: 23555

llvm-svn: 23554

llvm-svn: 23553

llvm-svn: 23552

as callee save.  They can never be generated by the compiler.

llvm-svn: 23551

llvm-svn: 23550

llvm-svn: 23549

not defs.

Implement support for forward definitions of classes.  This implements
TableGen/ForwardRef.td.

llvm-svn: 23548

llvm-svn: 23547

llvm-svn: 23546

used on a def.

llvm-svn: 23545

llvm-svn: 23544

llvm-svn: 23543

llvm-svn: 23542

llvm-svn: 23541