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comparison gcc/config/rs6000/a2.md @ 55:77e2b8dfacca gcc-4.4.5

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update it from 4.4.3 to 4.5.0
author ryoma <e075725@ie.u-ryukyu.ac.jp>
date Fri, 12 Feb 2010 23:39:51 +0900
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children 04ced10e8804
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52:c156f1bd5cd9 55:77e2b8dfacca
1 ;; Scheduling description for PowerPC A2 processors.
2 ;; Copyright (C) 2009 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 auxillary 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" "imul,imul2,imul3,imul_compare")
52 (eq_attr "cpu" "ppca2"))
53 "nothing")
54
55 ;; FIXME: latency and multiplier reservation for 64-bit multiply?
56 (define_insn_reservation "ppca2-lmul" 6
57 (and (eq_attr "type" "lmul,lmul_compare")
58 (eq_attr "cpu" "ppca2"))
59 "mult*3")
60
61 ;; D.4.9
62 (define_insn_reservation "ppca2-idiv" 32
63 (and (eq_attr "type" "idiv")
64 (eq_attr "cpu" "ppca2"))
65 "mult*32")
66
67 (define_insn_reservation "ppca2-ldiv" 65
68 (and (eq_attr "type" "ldiv")
69 (eq_attr "cpu" "ppca2"))
70 "mult*65")
71
72 ;; D.4.13
73 (define_insn_reservation "ppca2-load" 5
74 (and (eq_attr "type" "load,load_ext,load_ext_u,load_ext_ux,load_ux,load_u")
75 (eq_attr "cpu" "ppca2"))
76 "nothing")
77
78 ;; D.8.1
79 (define_insn_reservation "ppca2-fp" 6
80 (and (eq_attr "type" "fp") ;; Ignore fpsimple insn types (SPE only).
81 (eq_attr "cpu" "ppca2"))
82 "axu")
83
84 ;; D.8.4
85 (define_insn_reservation "ppca2-fp-load" 6
86 (and (eq_attr "type" "fpload,fpload_u,fpload_ux")
87 (eq_attr "cpu" "ppca2"))
88 "axu")
89
90 ;; D.8.5
91 (define_insn_reservation "ppca2-fp-store" 2
92 (and (eq_attr "type" "fpstore,fpstore_u,fpstore_ux")
93 (eq_attr "cpu" "ppca2"))
94 "axu")
95
96 ;; D.8.6
97 (define_insn_reservation "ppca2-fpcompare" 5
98 (and (eq_attr "type" "fpcompare")
99 (eq_attr "cpu" "ppca2"))
100 "axu")
101
102 ;; D.8.7
103 ;;
104 ;; Instructions from the same thread succeeding the floating-point
105 ;; divide cannot be executed until the floating-point divide has
106 ;; completed. Since there is nothing else we can do, this thread will
107 ;; just have to stall.
108
109 (define_insn_reservation "ppca2-ddiv" 72
110 (and (eq_attr "type" "ddiv")
111 (eq_attr "cpu" "ppca2"))
112 "axu")
113
114 (define_insn_reservation "ppca2-sdiv" 59
115 (and (eq_attr "type" "sdiv")
116 (eq_attr "cpu" "ppca2"))
117 "axu")
118
119 ;; D.8.8
120 ;;
121 ;; Instructions from the same thread succeeding the floating-point
122 ;; divide cannot be executed until the floating-point divide has
123 ;; completed. Since there is nothing else we can do, this thread will
124 ;; just have to stall.
125
126 (define_insn_reservation "ppca2-dsqrt" 69
127 (and (eq_attr "type" "dsqrt")
128 (eq_attr "cpu" "ppca2"))
129 "axu")
130
131 (define_insn_reservation "ppca2-ssqrt" 65
132 (and (eq_attr "type" "ssqrt")
133 (eq_attr "cpu" "ppca2"))
134 "axu")