1 ;; Generic DFA-based pipeline description for RISC-V targets.
2 ;; Copyright (C) 2011-2022 Free Software Foundation, Inc.
3 ;; Contributed by Andrew Waterman (andrew@sifive.com).
4 ;; Based on MIPS target for GNU compiler.
6 ;; This file is part of GCC.
8 ;; GCC is free software; you can redistribute it and/or modify it
9 ;; under the terms of the GNU General Public License as published
10 ;; by the Free Software Foundation; either version 3, or (at your
11 ;; option) any later version.
13 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
14 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
16 ;; License for more details.
18 ;; You should have received a copy of the GNU General Public License
19 ;; along with GCC; see the file COPYING3. If not see
20 ;; <http://www.gnu.org/licenses/>.
23 (define_automaton "pipe0")
24 (define_cpu_unit "alu" "pipe0")
25 (define_cpu_unit "imuldiv" "pipe0")
26 (define_cpu_unit "fdivsqrt" "pipe0")
28 (define_insn_reservation "generic_alu" 1
29 (and (eq_attr "tune" "generic")
30 (eq_attr "type" "unknown,const,arith,shift,slt,multi,auipc,nop,logical,move"))
33 (define_insn_reservation "generic_load" 3
34 (and (eq_attr "tune" "generic")
35 (eq_attr "type" "load,fpload"))
38 (define_insn_reservation "generic_store" 1
39 (and (eq_attr "tune" "generic")
40 (eq_attr "type" "store,fpstore"))
43 (define_insn_reservation "generic_xfer" 3
44 (and (eq_attr "tune" "generic")
45 (eq_attr "type" "mfc,mtc,fcvt,fmove,fcmp"))
48 (define_insn_reservation "generic_branch" 1
49 (and (eq_attr "tune" "generic")
50 (eq_attr "type" "branch,jump,call"))
53 (define_insn_reservation "generic_imul" 10
54 (and (eq_attr "tune" "generic")
55 (eq_attr "type" "imul"))
58 (define_insn_reservation "generic_idivsi" 34
59 (and (eq_attr "tune" "generic")
60 (and (eq_attr "type" "idiv")
61 (eq_attr "mode" "SI")))
64 (define_insn_reservation "generic_idivdi" 66
65 (and (eq_attr "tune" "generic")
66 (and (eq_attr "type" "idiv")
67 (eq_attr "mode" "DI")))
70 (define_insn_reservation "generic_fmul_single" 5
71 (and (eq_attr "tune" "generic")
72 (and (eq_attr "type" "fadd,fmul,fmadd")
73 (eq_attr "mode" "SF")))
76 (define_insn_reservation "generic_fmul_double" 7
77 (and (eq_attr "tune" "generic")
78 (and (eq_attr "type" "fadd,fmul,fmadd")
79 (eq_attr "mode" "DF")))
82 (define_insn_reservation "generic_fdiv" 20
83 (and (eq_attr "tune" "generic")
84 (eq_attr "type" "fdiv"))
87 (define_insn_reservation "generic_fsqrt" 25
88 (and (eq_attr "tune" "generic")
89 (eq_attr "type" "fsqrt"))