1;; Scheduling description for SuperSPARC.
2;;   Copyright (C) 2002-2015 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;; The SuperSPARC is a tri-issue, which was considered quite parallel
21;; at the time it was released.  Much like UltraSPARC-I and UltraSPARC-II
22;; there are two integer units but only one of them may take shifts.
23;;
24;; ??? If SuperSPARC has the same slotting rules as ultrasparc for these
25;; ??? shifts, we should model that.
26
27(define_automaton "supersparc_0,supersparc_1")
28
29(define_cpu_unit "ss_memory, ss_shift, ss_iwport0, ss_iwport1" "supersparc_0")
30(define_cpu_unit "ss_fpalu" "supersparc_0")
31(define_cpu_unit "ss_fpmds" "supersparc_1")
32
33(define_reservation "ss_iwport" "(ss_iwport0 | ss_iwport1)")
34
35(define_insn_reservation "ss_iuload" 1
36  (and (eq_attr "cpu" "supersparc")
37    (eq_attr "type" "load,sload"))
38  "ss_memory")
39
40;; Ok, fpu loads deliver the result in zero cycles.  But we
41;; have to show the ss_memory reservation somehow, thus...
42(define_insn_reservation "ss_fpload" 0
43  (and (eq_attr "cpu" "supersparc")
44    (eq_attr "type" "fpload"))
45  "ss_memory")
46
47(define_bypass 0 "ss_fpload" "ss_fp_alu,ss_fp_mult,ss_fp_divs,ss_fp_divd,ss_fp_sqrt")
48
49(define_insn_reservation "ss_store" 1
50  (and (eq_attr "cpu" "supersparc")
51    (eq_attr "type" "store,fpstore"))
52  "ss_memory")
53
54(define_insn_reservation "ss_ialu_shift" 1
55  (and (eq_attr "cpu" "supersparc")
56    (eq_attr "type" "shift"))
57  "ss_shift + ss_iwport")
58
59(define_insn_reservation "ss_ialu_any" 1
60  (and (eq_attr "cpu" "supersparc")
61    (eq_attr "type" "load,sload,store,shift,ialu"))
62  "ss_iwport")
63
64(define_insn_reservation "ss_fp_alu" 3
65  (and (eq_attr "cpu" "supersparc")
66    (eq_attr "type" "fp,fpmove,fpcmp"))
67  "ss_fpalu, nothing*2")
68
69(define_insn_reservation "ss_fp_mult" 3
70  (and (eq_attr "cpu" "supersparc")
71    (eq_attr "type" "fpmul"))
72  "ss_fpmds, nothing*2")
73
74(define_insn_reservation "ss_fp_divs" 6
75  (and (eq_attr "cpu" "supersparc")
76    (eq_attr "type" "fpdivs"))
77  "ss_fpmds*4, nothing*2")
78
79(define_insn_reservation "ss_fp_divd" 9
80  (and (eq_attr "cpu" "supersparc")
81    (eq_attr "type" "fpdivd"))
82  "ss_fpmds*7, nothing*2")
83
84(define_insn_reservation "ss_fp_sqrt" 12
85  (and (eq_attr "cpu" "supersparc")
86    (eq_attr "type" "fpsqrts,fpsqrtd"))
87  "ss_fpmds*10, nothing*2")
88
89(define_insn_reservation "ss_imul" 4
90  (and (eq_attr "cpu" "supersparc")
91    (eq_attr "type" "imul"))
92  "ss_fpmds*4")
93