* rs6000.md: Document 'unspec' values used.
(epilogue): New expander.
(movesi_to_cr_one): New expander.
(movesi_to_cr and following): New pattern.
(lmw): New pattern.
(return_internal_si): New pattern.
(return_internal_di): New pattern.
(return_and_restore_fpregs_si): New pattern.
(return_and_restore_fpregs_di): New pattern.
* rs6000.h: Declare new functions.
* rs6000.c (rs6000_stack_info): Use current_function_is_leaf
rather than rs6000_calls_p.
(rs6000_makes_calls): Delete.
(lmw_operation): New function.
(mtcrf_operation): New function.
(rs6000_emit_epilogue): New function.
(output_epilog): Call rs6000_emit_epilogue and final if
!TARGET_SCHED_PROLOG, instead of writing text unconditionally.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/newppc-branch@31375 138bc75d-0d04-0410-961f-82ee72b054a4