llvm-svn: 83522

llvm-svn: 78666

llvm-svn: 75067

llvm-svn: 74543

llvm-svn: 72969

llvm-svn: 58877

llvm-svn: 46930

llvm-svn: 45418

llvm-svn: 36371

- Some code clean up.

llvm-svn: 34783

llvm-svn: 34781

that is the case, whenever we use it as a scratch register, save it to R12
first and then restore it after the use.
This is a temporary and truly horrible workaround!

llvm-svn: 33999

  spilled (if it is not already).
- If LR is spilled, use BL to implement far jumps. LR is not used as a GPR
  in thumb mode so it can be clobbered if it is properly spilled / restored
  in prologue / epilogue.
- If LR is force spilled but no far jump has been emitted, try undo'ing the
  spill by:
  push lr -> delete
  pop pc -> bx lr

llvm-svn: 33650

llvm-svn: 33632

llvm-svn: 33496

llvm-svn: 33389

llvm-svn: 33353