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comparison gcc/config/i386/geode.md @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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1 ;; Geode Scheduling
2 ;; Copyright (C) 2006, 2007
3 ;; Free Software Foundation, Inc.
4 ;;
5 ;; This file is part of GCC.
6 ;;
7 ;; GCC is free software; you can redistribute it and/or modify
8 ;; it 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,
13 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ;; GNU 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 ;; The Geode architecture is one insn issue processor.
22 ;;
23 ;; This description is based on data from the following documents:
24 ;;
25 ;; "AMD Geode GX Processor Data Book"
26 ;; Advanced Micro Devices, Inc., Aug 2005.
27 ;;
28 ;; "AMD Geode LX Processor Data Book"
29 ;; Advanced Micro Devices, Inc., Jan 2006.
30 ;;
31 ;;
32 ;; CPU execution units of the Geode:
33 ;;
34 ;; issue describes the issue pipeline.
35 ;; alu describes the Integer unit
36 ;; fpu describes the FP unit
37 ;;
38 ;; The fp unit is out of order execution unit with register renaming.
39 ;; There is also memory management unit and execution pipeline for
40 ;; load/store operations. We ignore it and difference between insns
41 ;; using memory and registers.
42
43 (define_automaton "geode")
44
45 (define_cpu_unit "geode_issue,geode_alu,geode_fpu" "geode")
46
47 (define_insn_reservation "alu" 1
48 (and (eq_attr "cpu" "geode")
49 (eq_attr "type" "alu,alu1,negnot,icmp,lea,test,imov,imovx,icmov,incdec,setcc"))
50 "geode_issue,geode_alu")
51
52 (define_insn_reservation "shift" 2
53 (and (eq_attr "cpu" "geode")
54 (eq_attr "type" "ishift,ishift1,rotate,rotate1"))
55 "geode_issue,geode_alu*2")
56
57 (define_insn_reservation "imul" 7
58 (and (eq_attr "cpu" "geode")
59 (eq_attr "type" "imul"))
60 "geode_issue,geode_alu*7")
61
62 (define_insn_reservation "idiv" 40
63 (and (eq_attr "cpu" "geode")
64 (eq_attr "type" "idiv"))
65 "geode_issue,geode_alu*40")
66
67 ;; The branch unit.
68 (define_insn_reservation "call" 2
69 (and (eq_attr "cpu" "geode")
70 (eq_attr "type" "call,callv"))
71 "geode_issue,geode_alu*2")
72
73 (define_insn_reservation "geode_branch" 1
74 (and (eq_attr "cpu" "geode")
75 (eq_attr "type" "ibr"))
76 "geode_issue,geode_alu")
77
78 (define_insn_reservation "geode_pop_push" 1
79 (and (eq_attr "cpu" "geode")
80 (eq_attr "type" "pop,push"))
81 "geode_issue,geode_alu")
82
83 (define_insn_reservation "geode_leave" 2
84 (and (eq_attr "cpu" "geode")
85 (eq_attr "type" "leave"))
86 "geode_issue,geode_alu*2")
87
88 (define_insn_reservation "geode_load_str" 4
89 (and (eq_attr "cpu" "geode")
90 (and (eq_attr "type" "str")
91 (eq_attr "memory" "load,both")))
92 "geode_issue,geode_alu*4")
93
94 (define_insn_reservation "geode_store_str" 2
95 (and (eq_attr "cpu" "geode")
96 (and (eq_attr "type" "str")
97 (eq_attr "memory" "store")))
98 "geode_issue,geode_alu*2")
99
100 ;; Be optimistic
101 (define_insn_reservation "geode_unknown" 1
102 (and (eq_attr "cpu" "geode")
103 (eq_attr "type" "multi,other"))
104 "geode_issue,geode_alu")
105
106 ;; FPU
107
108 (define_insn_reservation "geode_fop" 6
109 (and (eq_attr "cpu" "geode")
110 (eq_attr "type" "fop,fcmp"))
111 "geode_issue,geode_fpu*6")
112
113 (define_insn_reservation "geode_fsimple" 1
114 (and (eq_attr "cpu" "geode")
115 (eq_attr "type" "fmov,fcmov,fsgn,fxch"))
116 "geode_issue,geode_fpu")
117
118 (define_insn_reservation "geode_fist" 4
119 (and (eq_attr "cpu" "geode")
120 (eq_attr "type" "fistp,fisttp"))
121 "geode_issue,geode_fpu*4")
122
123 (define_insn_reservation "geode_fmul" 10
124 (and (eq_attr "cpu" "geode")
125 (eq_attr "type" "fmul"))
126 "geode_issue,geode_fpu*10")
127
128 (define_insn_reservation "geode_fdiv" 47
129 (and (eq_attr "cpu" "geode")
130 (eq_attr "type" "fdiv"))
131 "geode_issue,geode_fpu*47")
132
133 ;; We use minimal latency (fsin) here
134 (define_insn_reservation "geode_fpspc" 54
135 (and (eq_attr "cpu" "geode")
136 (eq_attr "type" "fpspc"))
137 "geode_issue,geode_fpu*54")
138
139 (define_insn_reservation "geode_frndint" 12
140 (and (eq_attr "cpu" "geode")
141 (eq_attr "type" "frndint"))
142 "geode_issue,geode_fpu*12")
143
144 (define_insn_reservation "geode_mmxmov" 1
145 (and (eq_attr "cpu" "geode")
146 (eq_attr "type" "mmxmov"))
147 "geode_issue,geode_fpu")
148
149 (define_insn_reservation "geode_mmx" 2
150 (and (eq_attr "cpu" "geode")
151 (eq_attr "type" "mmx,mmxadd,mmxmul,mmxcmp,mmxcvt,mmxshft"))
152 "geode_issue,geode_fpu*2")