gcc/config/arm/marvell-f-iwmmxt.md

;; 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/.

(define_automaton “marvell_f_iwmmxt”)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; Pipelines ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;; This is a 7-stage pipelines: ;; ;; MD | MI | ME1 | ME2 | ME3 | ME4 | MW ;; ;; There are various bypasses modelled to a greater or lesser extent. ;; ;; Latencies in this file correspond to the number of cycles after ;; the issue stage that it takes for the result of the instruction to ;; be computed, or for its side-effects to occur.

(define_cpu_unit “mf_iwmmxt_MD” “marvell_f_iwmmxt”) (define_cpu_unit “mf_iwmmxt_MI” “marvell_f_iwmmxt”) (define_cpu_unit “mf_iwmmxt_ME1” “marvell_f_iwmmxt”) (define_cpu_unit “mf_iwmmxt_ME2” “marvell_f_iwmmxt”) (define_cpu_unit “mf_iwmmxt_ME3” “marvell_f_iwmmxt”) (define_cpu_unit “mf_iwmmxt_ME4” “marvell_f_iwmmxt”) (define_cpu_unit “mf_iwmmxt_MW” “marvell_f_iwmmxt”)

(define_reservation “mf_iwmmxt_ME” “mf_iwmmxt_ME1,mf_iwmmxt_ME2,mf_iwmmxt_ME3,mf_iwmmxt_ME4” )

(define_reservation “mf_iwmmxt_pipeline” “mf_iwmmxt_MD, mf_iwmmxt_MI, mf_iwmmxt_ME, mf_iwmmxt_MW” )

;; An attribute to indicate whether our reservations are applicable. (define_attr “marvell_f_iwmmxt” “yes,no” (const (if_then_else (symbol_ref “arm_arch_iwmmxt”) (const_string “yes”) (const_string “no”))))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; instruction classes ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;; An attribute appended to instructions for classification

(define_attr “wmmxt_shift” “yes,no” (if_then_else (eq_attr “type” “wmmx_wror, wmmx_wsll, wmmx_wsra, wmmx_wsrl”) (const_string “yes”) (const_string “no”)) )

(define_attr “wmmxt_pack” “yes,no” (if_then_else (eq_attr “type” “wmmx_waligni, wmmx_walignr, wmmx_wmerge,
wmmx_wpack, wmmx_wshufh, wmmx_wunpckeh,
wmmx_wunpckih, wmmx_wunpckel, wmmx_wunpckil”) (const_string “yes”) (const_string “no”)) )

(define_attr “wmmxt_mult_c1” “yes,no” (if_then_else (eq_attr “type” “wmmx_wmac, wmmx_wmadd, wmmx_wmiaxy,
wmmx_wmiawxy, wmmx_wmulw, wmmx_wqmiaxy,
wmmx_wqmulwm”) (const_string “yes”) (const_string “no”)) )

(define_attr “wmmxt_mult_c2” “yes,no” (if_then_else (eq_attr “type” “wmmx_wmul, wmmx_wqmulm”) (const_string “yes”) (const_string “no”)) )

(define_attr “wmmxt_alu_c1” “yes,no” (if_then_else (eq_attr “type” “wmmx_wabs, wmmx_wabsdiff, wmmx_wand,
wmmx_wandn, wmmx_wmov, wmmx_wor, wmmx_wxor”) (const_string “yes”) (const_string “no”)) )

(define_attr “wmmxt_alu_c2” “yes,no” (if_then_else (eq_attr “type” “wmmx_wacc, wmmx_wadd, wmmx_waddsubhx,
wmmx_wavg2, wmmx_wavg4, wmmx_wcmpeq,
wmmx_wcmpgt, wmmx_wmax, wmmx_wmin,
wmmx_wsub, wmmx_waddbhus, wmmx_wsubaddhx”) (const_string “yes”) (const_string “no”)) )

(define_attr “wmmxt_alu_c3” “yes,no” (if_then_else (eq_attr “type” “wmmx_wsad”) (const_string “yes”) (const_string “no”)) )

(define_attr “wmmxt_transfer_c1” “yes,no” (if_then_else (eq_attr “type” “wmmx_tbcst, wmmx_tinsr,
wmmx_tmcr, wmmx_tmcrr”) (const_string “yes”) (const_string “no”)) )

(define_attr “wmmxt_transfer_c2” “yes,no” (if_then_else (eq_attr “type” “wmmx_textrm, wmmx_tmovmsk,
wmmx_tmrc, wmmx_tmrrc”) (const_string “yes”) (const_string “no”)) )

(define_attr “wmmxt_transfer_c3” “yes,no” (if_then_else (eq_attr “type” “wmmx_tmia, wmmx_tmiaph, wmmx_tmiaxy”) (const_string “yes”) (const_string “no”)) )

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; Main description ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(define_insn_reservation “marvell_f_iwmmxt_alu_c1” 1 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_alu_c1” “yes”)) “mf_iwmmxt_pipeline”)

(define_insn_reservation “marvell_f_iwmmxt_pack” 1 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_pack” “yes”)) “mf_iwmmxt_pipeline”)

(define_insn_reservation “marvell_f_iwmmxt_shift” 1 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_shift” “yes”)) “mf_iwmmxt_pipeline”)

(define_insn_reservation “marvell_f_iwmmxt_transfer_c1” 1 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_transfer_c1” “yes”)) “mf_iwmmxt_pipeline”)

(define_insn_reservation “marvell_f_iwmmxt_transfer_c2” 5 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_transfer_c2” “yes”)) “mf_iwmmxt_pipeline”)

(define_insn_reservation “marvell_f_iwmmxt_alu_c2” 2 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_alu_c2” “yes”)) “mf_iwmmxt_pipeline”)

(define_insn_reservation “marvell_f_iwmmxt_alu_c3” 3 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_alu_c3” “yes”)) “mf_iwmmxt_pipeline”)

(define_insn_reservation “marvell_f_iwmmxt_transfer_c3” 4 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_transfer_c3” “yes”)) “mf_iwmmxt_pipeline”)

(define_insn_reservation “marvell_f_iwmmxt_mult_c1” 4 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_mult_c1” “yes”)) “mf_iwmmxt_pipeline”)

;There is a forwarding path from ME3 stage (define_insn_reservation “marvell_f_iwmmxt_mult_c2” 3 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “wmmxt_mult_c2” “yes”)) “mf_iwmmxt_pipeline”)

(define_insn_reservation “marvell_f_iwmmxt_wstr” 0 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “type” “wmmx_wstr”)) “mf_iwmmxt_pipeline”)

;There is a forwarding path from MW stage (define_insn_reservation “marvell_f_iwmmxt_wldr” 5 (and (eq_attr “marvell_f_iwmmxt” “yes”) (eq_attr “type” “wmmx_wldr”)) “mf_iwmmxt_pipeline”)