functionality change, just code cleanup.

llvm-svn: 25230

pointer in the epilog, not a load.

llvm-svn: 25229

hasInFlag, hasOutFlag.

llvm-svn: 25155

* Added a pseudo instruction (for each target) that represent "return void".
  This is a workaround for lack of optional flag operand (return void is not
  lowered so it does not have a flag operand.)

llvm-svn: 24997

alignment information appropriately.  Includes code for PowerPC to support
fixed-size allocas with alignment larger than the stack.  Support for
arbitrarily aligned dynamic allocas coming soon.

llvm-svn: 24224

llvm-svn: 23787

purely mechanical.

llvm-svn: 23778

redundant after the change.

llvm-svn: 23759

This completes the grand PPC file renaming

llvm-svn: 23745

llvm-svn: 23743

llvm-svn: 23742

llvm-svn: 23738

llvm-svn: 23581

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

llvm-svn: 23577

llvm-svn: 23571

llvm-svn: 23558

llvm-svn: 23539

llvm-svn: 23374

for FP as well.  This triggers a couple dozen times on 177.mesa (for example).

llvm-svn: 23299

with copies, leading to code like this:

       lwz r4, 380(r1)
       or r10, r4, r4    ;; Last use of r4

By teaching the PPC backend how to fold spills into copies, we now get this
code:

       lwz r10, 380(r1)

wow. :)

This reduces a testcase nate sent me from 1505 instructions to 1484.

Note that this could handle FP values but doesn't currently, for reasons
mentioned in the patch

llvm-svn: 23298

llvm-svn: 23297

llvm-svn: 23105

  * avoid calling getClass() multiple times (it is relatively expensive)
  * Allow -disable-fp-elim to turn of frame pointer elimination.

llvm-svn: 23104

llvm-svn: 22913

llvm-svn: 22882

and asm printer for PowerPC if one is not specified.

llvm-svn: 22659

llvm-svn: 22565

llvm-svn: 22530

unnecessary SP manipulation in leaf routines that don't need it.

llvm-svn: 22522

llvm-svn: 21452

llvm-svn: 21425

llvm-svn: 21246

have to inform the register allocator it might be stepped on.

llvm-svn: 21202

llvm-svn: 21085

llvm-svn: 17240

llvm-svn: 16519

Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137

llvm-svn: 16070

llvm-svn: 15990

llvm-svn: 15968