1;; DFA scheduling description for SH-5 SHmedia instructions. 2;; Copyright (C) 2004, 2005 Free Software Foundation, Inc. 3 4;; This file is part of GCC. 5 6;; GCC is free software; you can redistribute it and/or modify 7;; it under the terms of the GNU General Public License as published by 8;; the Free Software Foundation; either version 2, or (at your option) 9;; any later version. 10 11;; GCC is distributed in the hope that it will be useful, 12;; but WITHOUT ANY WARRANTY; without even the implied warranty of 13;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14;; GNU General Public License for more details. 15 16;; You should have received a copy of the GNU General Public License 17;; along with GCC; see the file COPYING. If not, write to 18;; the Free Software Foundation, 51 Franklin Street, Fifth Floor, 19;; Boston, MA 02110-1301, USA. 20 21;; This is just a conversion of the old model using define_function_unit. 22 23;; When executing SHmedia code, the SH-5 is a fairly straightforward 24;; single-issue machine. It has four pipelines, the branch unit (br), 25;; the integer and multimedia unit (imu), the load/store unit (lsu), and 26;; the floating point unit (fpu). 27 28(define_automaton "sh5inst_pipe, sh5fpu_pipe") 29 30(define_cpu_unit "sh5issue" "sh5inst_pipe") 31 32(define_cpu_unit "sh5fds" "sh5fpu_pipe") 33 34;; Every instruction on SH-5 occupies the issue resource for at least one 35;; cycle. 36(define_insn_reservation "shmedia1" 1 37 (and (eq_attr "pipe_model" "sh5media") 38 (eq_attr "type" "!pt_media,ptabs_media,invalidate_line_media,dmpy_media,load_media,fload_media,fcmp_media,fmove_media,fparith_media,dfparith_media,fpconv_media,dfpconv_media,dfmul_media,store_media,fstore_media,mcmp_media,mac_media,d2mpy_media,atrans_media,ustore_media")) 39 "sh5issue") 40 41;; Specify the various types of instruction which have latency > 1 42(define_insn_reservation "shmedia2" 2 43 (and (eq_attr "pipe_model" "sh5media") 44 (eq_attr "type" "mcmp_media")) 45 "sh5issue") 46 47(define_insn_reservation "shmedia3" 3 48 (and (eq_attr "pipe_model" "sh5media") 49 (eq_attr "type" "dmpy_media,load_media,fcmp_media,mac_media")) 50 "sh5issue") 51;; but see sh_adjust_cost for mac_media exception. 52 53(define_insn_reservation "shmedia4" 4 54 (and (eq_attr "pipe_model" "sh5media") 55 (eq_attr "type" "fload_media,fmove_media")) 56 "sh5issue") 57 58(define_insn_reservation "shmedia_d2mpy" 4 59 (and (eq_attr "pipe_model" "sh5media") 60 (eq_attr "type" "d2mpy_media")) 61 "sh5issue*2") 62 63(define_insn_reservation "shmedia5" 5 64 (and (eq_attr "pipe_model" "sh5media") 65 (eq_attr "type" "pt_media,ptabs_media")) 66 "sh5issue") 67 68(define_insn_reservation "shmedia6" 6 69 (and (eq_attr "pipe_model" "sh5media") 70 (eq_attr "type" "fparith_media,dfparith_media,fpconv_media,dfpconv_media")) 71 "sh5issue") 72 73(define_insn_reservation "shmedia_invalidate" 7 74 (and (eq_attr "pipe_model" "sh5media") 75 (eq_attr "type" "invalidate_line_media")) 76 "sh5issue*7") 77 78(define_insn_reservation "shmedia_dfmul" 9 79 (and (eq_attr "pipe_model" "sh5media") (eq_attr "type" "dfmul_media")) 80 "sh5issue*4") 81 82(define_insn_reservation "shmedia_atrans" 10 83 (and (eq_attr "pipe_model" "sh5media") (eq_attr "type" "atrans_media")) 84 "sh5issue*5") 85 86;; Floating-point divide and square-root occupy an additional resource, 87;; which is not internally pipelined. However, other instructions 88;; can continue to issue. 89(define_insn_reservation "shmedia_fdiv" 19 90 (and (eq_attr "pipe_model" "sh5media") (eq_attr "type" "fdiv_media")) 91 "sh5issue+sh5fds,sh5fds*18") 92 93(define_insn_reservation "shmedia_dfdiv" 35 94 (and (eq_attr "pipe_model" "sh5media") (eq_attr "type" "dfdiv_media")) 95 "sh5issue+sh5fds,sh5fds*34") 96