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cfe1b18f 1;; Geode Scheduling
a945c346 2;; Copyright (C) 2006-2024 Free Software Foundation, Inc.
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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
2f83c7d6 8;; the Free Software Foundation; either version 3, or (at your option)
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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
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17;; along with GCC; see the file COPYING3. If not see
18;; <http://www.gnu.org/licenses/>.
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19;;
20;; The Geode architecture is one insn issue processor.
21;;
22;; This description is based on data from the following documents:
23;;
24;; "AMD Geode GX Processor Data Book"
25;; Advanced Micro Devices, Inc., Aug 2005.
26;;
27;; "AMD Geode LX Processor Data Book"
28;; Advanced Micro Devices, Inc., Jan 2006.
29;;
30;;
31;; CPU execution units of the Geode:
32;;
33;; issue describes the issue pipeline.
34;; alu describes the Integer unit
35;; fpu describes the FP unit
36;;
37;; The fp unit is out of order execution unit with register renaming.
38;; There is also memory management unit and execution pipeline for
39;; load/store operations. We ignore it and difference between insns
40;; using memory and registers.
41
42(define_automaton "geode")
43
44(define_cpu_unit "geode_issue,geode_alu,geode_fpu" "geode")
45
46(define_insn_reservation "alu" 1
47 (and (eq_attr "cpu" "geode")
48 (eq_attr "type" "alu,alu1,negnot,icmp,lea,test,imov,imovx,icmov,incdec,setcc"))
49 "geode_issue,geode_alu")
50
51(define_insn_reservation "shift" 2
52 (and (eq_attr "cpu" "geode")
90c56b45 53 (eq_attr "type" "ishift,ishift1,rotate,rotate1"))
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54 "geode_issue,geode_alu*2")
55
56(define_insn_reservation "imul" 7
57 (and (eq_attr "cpu" "geode")
58 (eq_attr "type" "imul"))
59 "geode_issue,geode_alu*7")
60
61(define_insn_reservation "idiv" 40
62 (and (eq_attr "cpu" "geode")
63 (eq_attr "type" "idiv"))
64 "geode_issue,geode_alu*40")
65
66;; The branch unit.
67(define_insn_reservation "call" 2
68 (and (eq_attr "cpu" "geode")
69 (eq_attr "type" "call,callv"))
70 "geode_issue,geode_alu*2")
71
72(define_insn_reservation "geode_branch" 1
73 (and (eq_attr "cpu" "geode")
74 (eq_attr "type" "ibr"))
75 "geode_issue,geode_alu")
76
77(define_insn_reservation "geode_pop_push" 1
78 (and (eq_attr "cpu" "geode")
79 (eq_attr "type" "pop,push"))
80 "geode_issue,geode_alu")
81
82(define_insn_reservation "geode_leave" 2
83 (and (eq_attr "cpu" "geode")
84 (eq_attr "type" "leave"))
85 "geode_issue,geode_alu*2")
86
87(define_insn_reservation "geode_load_str" 4
88 (and (eq_attr "cpu" "geode")
89 (and (eq_attr "type" "str")
90 (eq_attr "memory" "load,both")))
91 "geode_issue,geode_alu*4")
92
93(define_insn_reservation "geode_store_str" 2
94 (and (eq_attr "cpu" "geode")
95 (and (eq_attr "type" "str")
96 (eq_attr "memory" "store")))
97 "geode_issue,geode_alu*2")
98
99;; Be optimistic
100(define_insn_reservation "geode_unknown" 1
101 (and (eq_attr "cpu" "geode")
102 (eq_attr "type" "multi,other"))
103 "geode_issue,geode_alu")
104
105;; FPU
106
107(define_insn_reservation "geode_fop" 6
108 (and (eq_attr "cpu" "geode")
109 (eq_attr "type" "fop,fcmp"))
110 "geode_issue,geode_fpu*6")
111
112(define_insn_reservation "geode_fsimple" 1
113 (and (eq_attr "cpu" "geode")
114 (eq_attr "type" "fmov,fcmov,fsgn,fxch"))
115 "geode_issue,geode_fpu")
116
117(define_insn_reservation "geode_fist" 4
118 (and (eq_attr "cpu" "geode")
119 (eq_attr "type" "fistp,fisttp"))
120 "geode_issue,geode_fpu*4")
121
122(define_insn_reservation "geode_fmul" 10
123 (and (eq_attr "cpu" "geode")
124 (eq_attr "type" "fmul"))
125 "geode_issue,geode_fpu*10")
126
127(define_insn_reservation "geode_fdiv" 47
128 (and (eq_attr "cpu" "geode")
129 (eq_attr "type" "fdiv"))
130 "geode_issue,geode_fpu*47")
131
132;; We use minimal latency (fsin) here
133(define_insn_reservation "geode_fpspc" 54
134 (and (eq_attr "cpu" "geode")
135 (eq_attr "type" "fpspc"))
136 "geode_issue,geode_fpu*54")
137
138(define_insn_reservation "geode_frndint" 12
139 (and (eq_attr "cpu" "geode")
140 (eq_attr "type" "frndint"))
141 "geode_issue,geode_fpu*12")
142
143(define_insn_reservation "geode_mmxmov" 1
144 (and (eq_attr "cpu" "geode")
145 (eq_attr "type" "mmxmov"))
146 "geode_issue,geode_fpu")
147
148(define_insn_reservation "geode_mmx" 2
149 (and (eq_attr "cpu" "geode")
150 (eq_attr "type" "mmx,mmxadd,mmxmul,mmxcmp,mmxcvt,mmxshft"))
151 "geode_issue,geode_fpu*2")