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;; Scheduling description for Niagara.
;; Copyright (C) 2006, 2007 Free Software Foundation, Inc.
;;
;; This file is part of GCC.
;;
;; GCC is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;;
;; GCC is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GCC; see the file COPYING3. If not see
;; <http://www.gnu.org/licenses/>.
;; Niagara is a single-issue processor.
(define_automaton "niagara_0")
(define_cpu_unit "niag_pipe" "niagara_0")
(define_insn_reservation "niag_5cycle" 5
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "multi,flushw,iflush,trap"))
"niag_pipe*5")
(define_insn_reservation "niag_4cycle" 4
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "savew"))
"niag_pipe*4")
/* Most basic operations are single-cycle. */
(define_insn_reservation "niag_ialu" 1
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "ialu,shift,compare,cmove"))
"niag_pipe")
(define_insn_reservation "niag_imul" 11
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "imul"))
"niag_pipe*11")
(define_insn_reservation "niag_idiv" 72
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "idiv"))
"niag_pipe*72")
(define_insn_reservation "niag_branch" 3
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "call,sibcall,call_no_delay_slot,uncond_branch,branch"))
"niag_pipe*3")
(define_insn_reservation "niag_3cycle_load" 3
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "load"))
"niag_pipe*3")
(define_insn_reservation "niag_9cycle_load" 9
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "fpload"))
"niag_pipe*9")
(define_insn_reservation "niag_1cycle_store" 1
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "store"))
"niag_pipe")
(define_insn_reservation "niag_8cycle_store" 8
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "fpstore"))
"niag_pipe*8")
/* Things incorrectly modelled here:
* FPADD{s,d}: 26 cycles
* FPSUB{s,d}: 26 cycles
* FABSD: 26 cycles
* F{s,d}TO{s,d}: 26 cycles
* F{s,d}TO{i,x}: 26 cycles
* FSMULD: 29 cycles
*/
(define_insn_reservation "niag_fmov" 8
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "fpmove,fpcmove,fpcrmove"))
"niag_pipe*8")
(define_insn_reservation "niag_fpcmp" 26
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "fpcmp"))
"niag_pipe*26")
(define_insn_reservation "niag_fmult" 29
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "fpmul"))
"niag_pipe*29")
(define_insn_reservation "niag_fdivs" 54
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "fpdivs"))
"niag_pipe*54")
(define_insn_reservation "niag_fdivd" 83
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "fpdivd"))
"niag_pipe*83")
/* Things incorrectly modelled here:
* FPADD{16,32}: 10 cycles
* FPSUB{16,32}: 10 cycles
* FALIGNDATA: 10 cycles
*/
(define_insn_reservation "niag_vis" 8
(and (eq_attr "cpu" "niagara")
(eq_attr "type" "fga,fgm_pack,fgm_mul,fgm_cmp,fgm_pdist"))
"niag_pipe*8")
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