Mercurial > hg > CbC > CbC_gcc

comparison gcc/config/powerpcspe/a2.md @ 111:04ced10e8804

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 84e7813d76e9
comparison
equal deleted inserted replaced
68:561a7518be6b 111:04ced10e8804
1 ;; Scheduling description for PowerPC A2 processors.
2 ;; Copyright (C) 2009-2017 Free Software Foundation, Inc.
3 ;; Contributed by Ben Elliston (bje@au.ibm.com)
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
9 ;; by the Free Software Foundation; either version 3, or (at your
10 ;; option) any later version.
11
12 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
13 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 ;; 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 (define_automaton "ppca2")
22
23 ;; CPU units
24
25 ;; The multiplier pipeline.
26 (define_cpu_unit "mult" "ppca2")
27
28 ;; The auxiliary processor unit (FP/vector unit).
29 (define_cpu_unit "axu" "ppca2")
30
31 ;; D.4.6
32 ;; Some peculiarities for certain SPRs
33
34 (define_insn_reservation "ppca2-mfcr" 1
35 (and (eq_attr "type" "mfcr")
36 (eq_attr "cpu" "ppca2"))
37 "nothing")
38
39 (define_insn_reservation "ppca2-mfjmpr" 5
40 (and (eq_attr "type" "mfjmpr")
41 (eq_attr "cpu" "ppca2"))
42 "nothing")
43
44 (define_insn_reservation "ppca2-mtjmpr" 5
45 (and (eq_attr "type" "mtjmpr")
46 (eq_attr "cpu" "ppca2"))
47 "nothing")
48
49 ;; D.4.8
50 (define_insn_reservation "ppca2-imul" 1
51 (and (eq_attr "type" "mul")
52 (eq_attr "size" "8,16,32")
53 (eq_attr "cpu" "ppca2"))
54 "nothing")
55
56 ;; FIXME: latency and multiplier reservation for 64-bit multiply?
57 (define_insn_reservation "ppca2-lmul" 6
58 (and (eq_attr "type" "mul")
59 (eq_attr "size" "64")
60 (eq_attr "cpu" "ppca2"))
61 "mult*3")
62
63 ;; D.4.9
64 (define_insn_reservation "ppca2-idiv" 32
65 (and (eq_attr "type" "div")
66 (eq_attr "size" "32")
67 (eq_attr "cpu" "ppca2"))
68 "mult*32")
69
70 (define_insn_reservation "ppca2-ldiv" 65
71 (and (eq_attr "type" "div")
72 (eq_attr "size" "64")
73 (eq_attr "cpu" "ppca2"))
74 "mult*65")
75
76 ;; D.4.13
77 (define_insn_reservation "ppca2-load" 5
78 (and (eq_attr "type" "load")
79 (eq_attr "cpu" "ppca2"))
80 "nothing")
81
82 ;; D.8.1
83 (define_insn_reservation "ppca2-fp" 6
84 (and (eq_attr "type" "fp,fpsimple")
85 (eq_attr "cpu" "ppca2"))
86 "axu")
87
88 ;; D.8.4
89 (define_insn_reservation "ppca2-fp-load" 6
90 (and (eq_attr "type" "fpload")
91 (eq_attr "cpu" "ppca2"))
92 "axu")
93
94 ;; D.8.5
95 (define_insn_reservation "ppca2-fp-store" 2
96 (and (eq_attr "type" "fpstore")
97 (eq_attr "cpu" "ppca2"))
98 "axu")
99
100 ;; D.8.6
101 (define_insn_reservation "ppca2-fpcompare" 5
102 (and (eq_attr "type" "fpcompare")
103 (eq_attr "cpu" "ppca2"))
104 "axu")
105
106 ;; D.8.7
107 ;;
108 ;; Instructions from the same thread succeeding the floating-point
109 ;; divide cannot be executed until the floating-point divide has
110 ;; completed. Since there is nothing else we can do, this thread will
111 ;; just have to stall.
112
113 (define_insn_reservation "ppca2-ddiv" 72
114 (and (eq_attr "type" "ddiv")
115 (eq_attr "cpu" "ppca2"))
116 "axu")
117
118 (define_insn_reservation "ppca2-sdiv" 59
119 (and (eq_attr "type" "sdiv")
120 (eq_attr "cpu" "ppca2"))
121 "axu")
122
123 ;; D.8.8
124 ;;
125 ;; Instructions from the same thread succeeding the floating-point
126 ;; divide cannot be executed until the floating-point divide has
127 ;; completed. Since there is nothing else we can do, this thread will
128 ;; just have to stall.
129
130 (define_insn_reservation "ppca2-dsqrt" 69
131 (and (eq_attr "type" "dsqrt")
132 (eq_attr "cpu" "ppca2"))
133 "axu")
134
135 (define_insn_reservation "ppca2-ssqrt" 65
136 (and (eq_attr "type" "ssqrt")
137 (eq_attr "cpu" "ppca2"))
138 "axu")