1;; Scheduling description for LEON.
2;;   Copyright (C) 2010-2015 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 3, 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 COPYING3.  If not see
18;; <http://www.gnu.org/licenses/>.
19
20;; Leon is a single-issue processor.
21
22(define_automaton "leon")
23
24(define_cpu_unit "leon_memory" "leon")
25
26(define_insn_reservation "leon_load" 1
27  (and (eq_attr "cpu" "leon,leon3,leon3v7")
28       (and (eq_attr "fix_ut699" "false") (eq_attr "type" "load,sload")))
29  "leon_memory")
30
31;; Use a double reservation to work around the load pipeline hazard on UT699.
32(define_insn_reservation "ut699_load" 1
33  (and (eq_attr "cpu" "leon,leon3,leon3v7")
34       (and (eq_attr "fix_ut699" "true") (eq_attr "type" "load,sload")))
35  "leon_memory*2")
36
37(define_insn_reservation "leon_store" 2
38  (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "store"))
39  "leon_memory*2")
40
41;; This describes Gaisler Research's FPU
42
43(define_automaton "grfpu")
44
45(define_cpu_unit "grfpu_alu" "grfpu")
46(define_cpu_unit "grfpu_ds" "grfpu")
47
48(define_insn_reservation "leon_fp_alu" 4
49  (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fp,fpcmp,fpmul"))
50  "grfpu_alu, nothing*3")
51
52(define_insn_reservation "leon_fp_divs" 16
53  (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fpdivs"))
54  "grfpu_ds*14, nothing*2")
55
56(define_insn_reservation "leon_fp_divd" 17
57  (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fpdivd"))
58  "grfpu_ds*15, nothing*2")
59
60(define_insn_reservation "leon_fp_sqrts" 24
61  (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fpsqrts"))
62  "grfpu_ds*22, nothing*2")
63
64(define_insn_reservation "leon_fp_sqrtd" 25
65  (and (eq_attr "cpu" "leon,leon3,leon3v7") (eq_attr "type" "fpsqrtd"))
66  "grfpu_ds*23, nothing*2")
67