1;; Scheduler information for C-SKY CK801 processors.
2;; Copyright (C) 2018-2019 Free Software Foundation, Inc.
3;; Contributed by C-SKY Microsystems and Mentor Graphics.
4;;
5;; This file is part of GCC.
6;;
7;; GCC is free software; you can redistribute it and/or modify it
8;; under the terms of the GNU General Public License as published by
9;; the Free Software Foundation; either version 3, or (at your option)
10;; any later version.
11;;
12;; GCC is distributed in the hope that it will be useful, but
13;; WITHOUT ANY WARRANTY; without even the implied warranty of
14;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15;; General Public License for more details.
16;;
17;; You should have received a copy of the GNU General Public License
18;; along with GCC; see the file COPYING3.  If not see
19;; <http://www.gnu.org/licenses/>.  */
20
21;; This is just a placeholder for a more accurate pipeline
22;; description for CK801.
23
24(define_automaton "ck801")
25
26(define_cpu_unit "ck801_ex1" "ck801")
27(define_cpu_unit "ck801_exit" "ck801")
28
29(define_insn_reservation "ck801_generic" 1
30  (and (match_test "CSKY_TARGET_ARCH (CK801)")
31       (eq_attr "type" "alu,cmp,branch,cbranch,addsub,alu_ix,branch_jmp,call_jsr,call"))
32  "ck801_ex1+ck801_exit")
33
34(define_insn_reservation "ck801_load" 1
35  (and (match_test "CSKY_TARGET_ARCH (CK801)")
36       (and (eq_attr "type" "load")
37	    (match_test "!csky_minipool_load_p (insn)")))
38  "ck801_ex1+ck801_exit")
39
40(define_insn_reservation "ck801_pool" 1
41  (and (match_test "CSKY_TARGET_ARCH (CK801)")
42       (and (eq_attr "type" "load")
43	    (match_test "csky_minipool_load_p (insn)")))
44  "ck801_ex1+ck801_exit")
45
46(define_insn_reservation "ck801_store" 1
47  (and (match_test "CSKY_TARGET_ARCH (CK801)")
48       (eq_attr "type" "store"))
49  "ck801_ex1+ck801_exit")
50
51;; Switching between constant pool loads and loads/stores in the data section
52;; carries an extra penalty.
53(define_bypass 2 "ck801_load,ck801_store" "ck801_pool")
54(define_bypass 2 "ck801_pool" "ck801_load,ck801_store")
55