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ec507f2d 1;; Scheduling description for IBM POWER5 processor.
23a5b65a 2;; Copyright (C) 2003-2014 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 it
7;; under the terms of the GNU General Public License as published
2f83c7d6 8;; by the Free Software Foundation; either version 3, or (at your
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9;; option) any later version.
10;;
11;; GCC is distributed in the hope that it will be useful, but WITHOUT
12;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
14;; 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;; Sources: IBM Red Book and White Paper on POWER5
21
22;; The POWER5 has 2 iu, 2 fpu, 2 lsu per engine (2 engines per chip).
23;; Instructions that update more than one register get broken into two
24;; (split) or more internal ops. The chip can issue up to 5
25;; internal ops per cycle.
26
27(define_automaton "power5iu,power5fpu,power5misc")
28
29(define_cpu_unit "iu1_power5,iu2_power5" "power5iu")
30(define_cpu_unit "lsu1_power5,lsu2_power5" "power5misc")
31(define_cpu_unit "fpu1_power5,fpu2_power5" "power5fpu")
32(define_cpu_unit "bpu_power5,cru_power5" "power5misc")
33(define_cpu_unit "du1_power5,du2_power5,du3_power5,du4_power5,du5_power5"
34 "power5misc")
35
36(define_reservation "lsq_power5"
37 "(du1_power5,lsu1_power5)\
38 |(du2_power5,lsu2_power5)\
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39 |(du3_power5,lsu2_power5)\
40 |(du4_power5,lsu1_power5)")
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41
42(define_reservation "iq_power5"
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43 "(du1_power5|du2_power5|du3_power5|du4_power5),\
44 (iu1_power5|iu2_power5)")
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45
46(define_reservation "fpq_power5"
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47 "(du1_power5|du2_power5|du3_power5|du4_power5),\
48 (fpu1_power5|fpu2_power5)")
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49
50; Dispatch slots are allocated in order conforming to program order.
51(absence_set "du1_power5" "du2_power5,du3_power5,du4_power5,du5_power5")
52(absence_set "du2_power5" "du3_power5,du4_power5,du5_power5")
53(absence_set "du3_power5" "du4_power5,du5_power5")
54(absence_set "du4_power5" "du5_power5")
55
56
57; Load/store
58(define_insn_reservation "power5-load" 4 ; 3
59 (and (eq_attr "type" "load")
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60 (eq_attr "sign_extend" "no")
61 (eq_attr "update" "no")
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62 (eq_attr "cpu" "power5"))
63 "lsq_power5")
64
65(define_insn_reservation "power5-load-ext" 5
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66 (and (eq_attr "type" "load")
67 (eq_attr "sign_extend" "yes")
68 (eq_attr "update" "no")
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69 (eq_attr "cpu" "power5"))
70 "du1_power5+du2_power5,lsu1_power5,nothing,nothing,iu2_power5")
71
72(define_insn_reservation "power5-load-ext-update" 5
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73 (and (eq_attr "type" "load")
74 (eq_attr "sign_extend" "yes")
75 (eq_attr "update" "yes")
76 (eq_attr "indexed" "no")
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77 (eq_attr "cpu" "power5"))
78 "du1_power5+du2_power5+du3_power5+du4_power5,\
79 lsu1_power5+iu2_power5,nothing,nothing,iu2_power5")
80
81(define_insn_reservation "power5-load-ext-update-indexed" 5
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82 (and (eq_attr "type" "load")
83 (eq_attr "sign_extend" "yes")
84 (eq_attr "update" "yes")
85 (eq_attr "indexed" "yes")
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86 (eq_attr "cpu" "power5"))
87 "du1_power5+du2_power5+du3_power5+du4_power5,\
88 iu1_power5,lsu2_power5+iu1_power5,nothing,nothing,iu2_power5")
89
90(define_insn_reservation "power5-load-update-indexed" 3
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91 (and (eq_attr "type" "load")
92 (eq_attr "sign_extend" "no")
93 (eq_attr "update" "yes")
94 (eq_attr "indexed" "yes")
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95 (eq_attr "cpu" "power5"))
96 "du1_power5+du2_power5+du3_power5+du4_power5,\
97 iu1_power5,lsu2_power5+iu2_power5")
98
99(define_insn_reservation "power5-load-update" 4 ; 3
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100 (and (eq_attr "type" "load")
101 (eq_attr "sign_extend" "no")
102 (eq_attr "update" "yes")
103 (eq_attr "indexed" "no")
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104 (eq_attr "cpu" "power5"))
105 "du1_power5+du2_power5,lsu1_power5+iu2_power5")
106
107(define_insn_reservation "power5-fpload" 6 ; 5
108 (and (eq_attr "type" "fpload")
d839f53b 109 (eq_attr "update" "no")
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110 (eq_attr "cpu" "power5"))
111 "lsq_power5")
112
113(define_insn_reservation "power5-fpload-update" 6 ; 5
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114 (and (eq_attr "type" "fpload")
115 (eq_attr "update" "yes")
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116 (eq_attr "cpu" "power5"))
117 "du1_power5+du2_power5,lsu1_power5+iu2_power5")
118
594a3565 119(define_insn_reservation "power5-store" 12
ec507f2d 120 (and (eq_attr "type" "store")
d839f53b 121 (eq_attr "update" "no")
ec507f2d 122 (eq_attr "cpu" "power5"))
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123 "((du1_power5,lsu1_power5)\
124 |(du2_power5,lsu2_power5)\
125 |(du3_power5,lsu2_power5)\
126 |(du4_power5,lsu1_power5)),\
127 (iu1_power5|iu2_power5)")
ec507f2d 128
594a3565 129(define_insn_reservation "power5-store-update" 12
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130 (and (eq_attr "type" "store")
131 (eq_attr "update" "yes")
132 (eq_attr "indexed" "no")
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133 (eq_attr "cpu" "power5"))
134 "du1_power5+du2_power5,lsu1_power5+iu2_power5,iu1_power5")
135
594a3565 136(define_insn_reservation "power5-store-update-indexed" 12
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137 (and (eq_attr "type" "store")
138 (eq_attr "update" "yes")
139 (eq_attr "indexed" "yes")
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140 (eq_attr "cpu" "power5"))
141 "du1_power5+du2_power5+du3_power5+du4_power5,\
142 iu1_power5,lsu2_power5+iu2_power5,iu2_power5")
143
594a3565 144(define_insn_reservation "power5-fpstore" 12
ec507f2d 145 (and (eq_attr "type" "fpstore")
d839f53b 146 (eq_attr "update" "no")
ec507f2d 147 (eq_attr "cpu" "power5"))
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148 "((du1_power5,lsu1_power5)\
149 |(du2_power5,lsu2_power5)\
150 |(du3_power5,lsu2_power5)\
151 |(du4_power5,lsu1_power5)),\
152 (fpu1_power5|fpu2_power5)")
ec507f2d 153
594a3565 154(define_insn_reservation "power5-fpstore-update" 12
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155 (and (eq_attr "type" "fpstore")
156 (eq_attr "update" "yes")
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157 (eq_attr "cpu" "power5"))
158 "du1_power5+du2_power5,lsu1_power5+iu2_power5,fpu1_power5")
159
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160(define_insn_reservation "power5-llsc" 11
161 (and (eq_attr "type" "load_l,store_c,sync")
162 (eq_attr "cpu" "power5"))
163 "du1_power5+du2_power5+du3_power5+du4_power5,\
164 lsu1_power5")
165
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166
167; Integer latency is 2 cycles
168(define_insn_reservation "power5-integer" 2
892e7fa6 169 (and (ior (eq_attr "type" "integer,trap,cntlz,exts,isel,popcnt")
73c076c8 170 (and (eq_attr "type" "add,logical,shift")
892e7fa6 171 (eq_attr "dot" "no"))
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172 (and (eq_attr "type" "insert")
173 (eq_attr "size" "64")))
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174 (eq_attr "cpu" "power5"))
175 "iq_power5")
176
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177(define_insn_reservation "power5-two" 2
178 (and (eq_attr "type" "two")
179 (eq_attr "cpu" "power5"))
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180 "((du1_power5+du2_power5)\
181 |(du2_power5+du3_power5)\
182 |(du3_power5+du4_power5)\
183 |(du4_power5+du1_power5)),\
184 ((iu1_power5,nothing,iu2_power5)\
185 |(iu2_power5,nothing,iu2_power5)\
186 |(iu2_power5,nothing,iu1_power5)\
187 |(iu1_power5,nothing,iu1_power5))")
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188
189(define_insn_reservation "power5-three" 2
190 (and (eq_attr "type" "three")
191 (eq_attr "cpu" "power5"))
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192 "(du1_power5+du2_power5+du3_power5|du2_power5+du3_power5+du4_power5\
193 |du3_power5+du4_power5+du1_power5|du4_power5+du1_power5+du2_power5),\
194 ((iu1_power5,nothing,iu2_power5,nothing,iu2_power5)\
195 |(iu2_power5,nothing,iu2_power5,nothing,iu1_power5)\
196 |(iu2_power5,nothing,iu1_power5,nothing,iu1_power5)\
197 |(iu1_power5,nothing,iu2_power5,nothing,iu2_power5))")
943c15ed 198
ec507f2d 199(define_insn_reservation "power5-insert" 4
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200 (and (eq_attr "type" "insert")
201 (eq_attr "size" "32")
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202 (eq_attr "cpu" "power5"))
203 "du1_power5+du2_power5,iu1_power5,nothing,iu2_power5")
204
205(define_insn_reservation "power5-cmp" 3
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206 (and (ior (eq_attr "type" "cmp")
207 (and (eq_attr "type" "add,logical")
0cbb4f58 208 (eq_attr "dot" "yes")))
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209 (eq_attr "cpu" "power5"))
210 "iq_power5")
211
212(define_insn_reservation "power5-compare" 2
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213 (and (ior (eq_attr "type" "compare")
214 (and (eq_attr "type" "shift")
215 (eq_attr "dot" "yes")))
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216 (eq_attr "cpu" "power5"))
217 "du1_power5+du2_power5,iu1_power5,iu2_power5")
218
219(define_bypass 4 "power5-compare" "power5-branch,power5-crlogical,power5-delayedcr,power5-mfcr,power5-mfcrf")
220
221(define_insn_reservation "power5-lmul-cmp" 7
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222 (and (eq_attr "type" "mul")
223 (eq_attr "dot" "yes")
224 (eq_attr "size" "64")
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225 (eq_attr "cpu" "power5"))
226 "du1_power5+du2_power5,iu1_power5*6,iu2_power5")
227
228(define_bypass 10 "power5-lmul-cmp" "power5-branch,power5-crlogical,power5-delayedcr,power5-mfcr,power5-mfcrf")
229
230(define_insn_reservation "power5-imul-cmp" 5
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231 (and (eq_attr "type" "mul")
232 (eq_attr "dot" "yes")
233 (eq_attr "size" "32")
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234 (eq_attr "cpu" "power5"))
235 "du1_power5+du2_power5,iu1_power5*4,iu2_power5")
236
237(define_bypass 8 "power5-imul-cmp" "power5-branch,power5-crlogical,power5-delayedcr,power5-mfcr,power5-mfcrf")
238
239(define_insn_reservation "power5-lmul" 7
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240 (and (eq_attr "type" "mul")
241 (eq_attr "dot" "no")
242 (eq_attr "size" "64")
ec507f2d 243 (eq_attr "cpu" "power5"))
1244a8b7 244 "(du1_power5|du2_power5|du3_power5|du4_power5),(iu1_power5*6|iu2_power5*6)")
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245
246(define_insn_reservation "power5-imul" 5
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247 (and (eq_attr "type" "mul")
248 (eq_attr "dot" "no")
249 (eq_attr "size" "32")
ec507f2d 250 (eq_attr "cpu" "power5"))
1244a8b7 251 "(du1_power5|du2_power5|du3_power5|du4_power5),(iu1_power5*4|iu2_power5*4)")
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252
253(define_insn_reservation "power5-imul3" 4
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254 (and (eq_attr "type" "mul")
255 (eq_attr "size" "8,16")
ec507f2d 256 (eq_attr "cpu" "power5"))
1244a8b7 257 "(du1_power5|du2_power5|du3_power5|du4_power5),(iu1_power5*3|iu2_power5*3)")
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258
259
260; SPR move only executes in first IU.
261; Integer division only executes in second IU.
262(define_insn_reservation "power5-idiv" 36
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263 (and (eq_attr "type" "div")
264 (eq_attr "size" "32")
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265 (eq_attr "cpu" "power5"))
266 "du1_power5+du2_power5,iu2_power5*35")
267
268(define_insn_reservation "power5-ldiv" 68
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269 (and (eq_attr "type" "div")
270 (eq_attr "size" "64")
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271 (eq_attr "cpu" "power5"))
272 "du1_power5+du2_power5,iu2_power5*67")
273
274
275(define_insn_reservation "power5-mtjmpr" 3
276 (and (eq_attr "type" "mtjmpr,mfjmpr")
277 (eq_attr "cpu" "power5"))
278 "du1_power5,bpu_power5")
279
280
281; Branches take dispatch Slot 4. The presence_sets prevent other insn from
282; grabbing previous dispatch slots once this is assigned.
283(define_insn_reservation "power5-branch" 2
284 (and (eq_attr "type" "jmpreg,branch")
285 (eq_attr "cpu" "power5"))
286 "(du5_power5\
287 |du4_power5+du5_power5\
288 |du3_power5+du4_power5+du5_power5\
289 |du2_power5+du3_power5+du4_power5+du5_power5\
290 |du1_power5+du2_power5+du3_power5+du4_power5+du5_power5),bpu_power5")
291
292
293; Condition Register logical ops are split if non-destructive (RT != RB)
294(define_insn_reservation "power5-crlogical" 2
295 (and (eq_attr "type" "cr_logical")
296 (eq_attr "cpu" "power5"))
297 "du1_power5,cru_power5")
298
299(define_insn_reservation "power5-delayedcr" 4
300 (and (eq_attr "type" "delayed_cr")
301 (eq_attr "cpu" "power5"))
302 "du1_power5+du2_power5,cru_power5,cru_power5")
303
304; 4 mfcrf (each 3 cyc, 1/cyc) + 3 fxu
305(define_insn_reservation "power5-mfcr" 6
306 (and (eq_attr "type" "mfcr")
307 (eq_attr "cpu" "power5"))
308 "du1_power5+du2_power5+du3_power5+du4_power5,\
309 du1_power5+du2_power5+du3_power5+du4_power5+cru_power5,\
310 cru_power5,cru_power5,cru_power5")
311
312; mfcrf (1 field)
313(define_insn_reservation "power5-mfcrf" 3
314 (and (eq_attr "type" "mfcrf")
315 (eq_attr "cpu" "power5"))
316 "du1_power5,cru_power5")
317
318; mtcrf (1 field)
319(define_insn_reservation "power5-mtcr" 4
320 (and (eq_attr "type" "mtcr")
321 (eq_attr "cpu" "power5"))
322 "du1_power5,iu1_power5")
323
324; Basic FP latency is 6 cycles
325(define_insn_reservation "power5-fp" 6
326 (and (eq_attr "type" "fp,dmul")
327 (eq_attr "cpu" "power5"))
328 "fpq_power5")
329
330(define_insn_reservation "power5-fpcompare" 5
331 (and (eq_attr "type" "fpcompare")
332 (eq_attr "cpu" "power5"))
333 "fpq_power5")
334
335(define_insn_reservation "power5-sdiv" 33
336 (and (eq_attr "type" "sdiv,ddiv")
337 (eq_attr "cpu" "power5"))
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338 "(du1_power5|du2_power5|du3_power5|du4_power5),\
339 (fpu1_power5*28|fpu2_power5*28)")
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340
341(define_insn_reservation "power5-sqrt" 40
342 (and (eq_attr "type" "ssqrt,dsqrt")
343 (eq_attr "cpu" "power5"))
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344 "(du1_power5|du2_power5|du3_power5|du4_power5),\
345 (fpu1_power5*35|fpu2_power5*35)")
ec507f2d 346
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347(define_insn_reservation "power5-isync" 2
348 (and (eq_attr "type" "isync")
349 (eq_attr "cpu" "power5"))
350 "du1_power5+du2_power5+du3_power5+du4_power5,\
351 lsu1_power5")
352