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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [rs6000/] [power7.md] - Blame information for rev 298

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1 282 jeremybenn
;; Scheduling description for IBM POWER7 processor.
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;; Copyright (C) 2009 Free Software Foundation, Inc.
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;;
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;; Contributed by Pat Haugen (pthaugen@us.ibm.com).
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;; This file is part of GCC.
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;;
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;; GCC is free software; you can redistribute it and/or modify it
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;; under the terms of the GNU General Public License as published
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;; by the Free Software Foundation; either version 3, or (at your
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;; option) any later version.
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;;
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;; GCC is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
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;; License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with GCC; see the file COPYING3.  If not see
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;; .
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(define_automaton "power7iu,power7lsu,power7vsu,power7misc")
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(define_cpu_unit "iu1_power7,iu2_power7" "power7iu")
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(define_cpu_unit "lsu1_power7,lsu2_power7" "power7lsu")
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(define_cpu_unit "vsu1_power7,vsu2_power7" "power7vsu")
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(define_cpu_unit "bpu_power7,cru_power7" "power7misc")
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(define_cpu_unit "du1_power7,du2_power7,du3_power7,du4_power7,du5_power7"
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                 "power7misc")
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(define_reservation "DU_power7"
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                    "du1_power7|du2_power7|du3_power7|du4_power7")
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(define_reservation "DU2F_power7"
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                    "du1_power7+du2_power7")
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(define_reservation "DU4_power7"
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                    "du1_power7+du2_power7+du3_power7+du4_power7")
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(define_reservation "FXU_power7"
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                    "iu1_power7|iu2_power7")
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(define_reservation "VSU_power7"
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                    "vsu1_power7|vsu2_power7")
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(define_reservation "LSU_power7"
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                    "lsu1_power7|lsu2_power7")
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; Dispatch slots are allocated in order conforming to program order.
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(absence_set "du1_power7" "du2_power7,du3_power7,du4_power7,du5_power7")
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(absence_set "du2_power7" "du3_power7,du4_power7,du5_power7")
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(absence_set "du3_power7" "du4_power7,du5_power7")
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(absence_set "du4_power7" "du5_power7")
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57
 
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; LS Unit
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(define_insn_reservation "power7-load" 2
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  (and (eq_attr "type" "load")
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       (eq_attr "cpu" "power7"))
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  "DU_power7,LSU_power7")
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(define_insn_reservation "power7-load-ext" 3
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  (and (eq_attr "type" "load_ext")
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       (eq_attr "cpu" "power7"))
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  "DU2F_power7,LSU_power7,FXU_power7")
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(define_insn_reservation "power7-load-update" 2
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  (and (eq_attr "type" "load_u")
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       (eq_attr "cpu" "power7"))
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  "DU2F_power7,LSU_power7+FXU_power7")
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(define_insn_reservation "power7-load-update-indexed" 3
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  (and (eq_attr "type" "load_ux")
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       (eq_attr "cpu" "power7"))
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  "DU4_power7,FXU_power7,LSU_power7+FXU_power7")
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(define_insn_reservation "power7-load-ext-update" 4
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  (and (eq_attr "type" "load_ext_u")
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       (eq_attr "cpu" "power7"))
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  "DU2F_power7,LSU_power7+FXU_power7,FXU_power7")
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(define_insn_reservation "power7-load-ext-update-indexed" 4
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  (and (eq_attr "type" "load_ext_ux")
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       (eq_attr "cpu" "power7"))
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  "DU4_power7,FXU_power7,LSU_power7+FXU_power7,FXU_power7")
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(define_insn_reservation "power7-fpload" 3
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  (and (eq_attr "type" "fpload")
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       (eq_attr "cpu" "power7"))
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  "DU_power7,LSU_power7")
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(define_insn_reservation "power7-fpload-update" 3
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  (and (eq_attr "type" "fpload_u,fpload_ux")
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       (eq_attr "cpu" "power7"))
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  "DU2F_power7,LSU_power7+FXU_power7")
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99
(define_insn_reservation "power7-store" 6 ; store-forwarding latency
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  (and (eq_attr "type" "store")
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       (eq_attr "cpu" "power7"))
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  "DU_power7,LSU_power7+FXU_power7")
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(define_insn_reservation "power7-store-update" 6
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  (and (eq_attr "type" "store_u")
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       (eq_attr "cpu" "power7"))
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  "DU2F_power7,LSU_power7+FXU_power7,FXU_power7")
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(define_insn_reservation "power7-store-update-indexed" 6
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  (and (eq_attr "type" "store_ux")
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       (eq_attr "cpu" "power7"))
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  "DU4_power7,LSU_power7+FXU_power7,FXU_power7")
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114
(define_insn_reservation "power7-fpstore" 6
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  (and (eq_attr "type" "fpstore")
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       (eq_attr "cpu" "power7"))
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  "DU_power7,LSU_power7+VSU_power7")
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119
(define_insn_reservation "power7-fpstore-update" 6
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  (and (eq_attr "type" "fpstore_u,fpstore_ux")
121
       (eq_attr "cpu" "power7"))
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  "DU_power7,LSU_power7+VSU_power7+FXU_power7")
123
 
124
(define_insn_reservation "power7-larx" 3
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  (and (eq_attr "type" "load_l")
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       (eq_attr "cpu" "power7"))
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  "DU4_power7,LSU_power7")
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129
(define_insn_reservation "power7-stcx" 10
130
  (and (eq_attr "type" "store_c")
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       (eq_attr "cpu" "power7"))
132
  "DU4_power7,LSU_power7")
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134
(define_insn_reservation "power7-vecload" 3
135
  (and (eq_attr "type" "vecload")
136
       (eq_attr "cpu" "power7"))
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  "DU_power7,LSU_power7")
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139
(define_insn_reservation "power7-vecstore" 6
140
  (and (eq_attr "type" "vecstore")
141
       (eq_attr "cpu" "power7"))
142
  "DU_power7,LSU_power7+VSU_power7")
143
 
144
(define_insn_reservation "power7-sync" 11
145
  (and (eq_attr "type" "sync")
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       (eq_attr "cpu" "power7"))
147
  "DU4_power7,LSU_power7")
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149
 
150
; FX Unit
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(define_insn_reservation "power7-integer" 1
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  (and (eq_attr "type" "integer,insert_word,insert_dword,shift,trap,\
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                        var_shift_rotate,exts,isel")
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       (eq_attr "cpu" "power7"))
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  "DU_power7,FXU_power7")
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157
(define_insn_reservation "power7-cntlz" 2
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  (and (eq_attr "type" "cntlz")
159
       (eq_attr "cpu" "power7"))
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  "DU_power7,FXU_power7")
161
 
162
(define_insn_reservation "power7-two" 2
163
  (and (eq_attr "type" "two")
164
       (eq_attr "cpu" "power7"))
165
  "DU_power7+DU_power7,FXU_power7,FXU_power7")
166
 
167
(define_insn_reservation "power7-three" 3
168
  (and (eq_attr "type" "three")
169
       (eq_attr "cpu" "power7"))
170
  "DU_power7+DU_power7+DU_power7,FXU_power7,FXU_power7,FXU_power7")
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172
(define_insn_reservation "power7-cmp" 1
173
  (and (eq_attr "type" "cmp,fast_compare")
174
       (eq_attr "cpu" "power7"))
175
  "DU_power7,FXU_power7")
176
 
177
(define_insn_reservation "power7-compare" 2
178
  (and (eq_attr "type" "compare,delayed_compare,var_delayed_compare")
179
       (eq_attr "cpu" "power7"))
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  "DU2F_power7,FXU_power7,FXU_power7")
181
 
182
(define_bypass 3 "power7-cmp,power7-compare" "power7-crlogical,power7-delayedcr")
183
 
184
(define_insn_reservation "power7-mul" 4
185
  (and (eq_attr "type" "imul,imul2,imul3,lmul")
186
       (eq_attr "cpu" "power7"))
187
  "DU_power7,FXU_power7")
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189
(define_insn_reservation "power7-mul-compare" 5
190
  (and (eq_attr "type" "imul_compare,lmul_compare")
191
       (eq_attr "cpu" "power7"))
192
  "DU2F_power7,FXU_power7,nothing*3,FXU_power7")
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194
(define_insn_reservation "power7-idiv" 36
195
  (and (eq_attr "type" "idiv")
196
       (eq_attr "cpu" "power7"))
197
  "DU2F_power7,iu1_power7*36|iu2_power7*36")
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199
(define_insn_reservation "power7-ldiv" 68
200
  (and (eq_attr "type" "ldiv")
201
       (eq_attr "cpu" "power7"))
202
  "DU2F_power7,iu1_power7*68|iu2_power7*68")
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204
(define_insn_reservation "power7-isync" 1 ;
205
  (and (eq_attr "type" "isync")
206
       (eq_attr "cpu" "power7"))
207
  "DU4_power7,FXU_power7")
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209
 
210
; CR Unit
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(define_insn_reservation "power7-mtjmpr" 4
212
  (and (eq_attr "type" "mtjmpr")
213
       (eq_attr "cpu" "power7"))
214
  "du1_power7,FXU_power7")
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216
(define_insn_reservation "power7-mfjmpr" 5
217
  (and (eq_attr "type" "mfjmpr")
218
       (eq_attr "cpu" "power7"))
219
  "du1_power7,cru_power7+FXU_power7")
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221
(define_insn_reservation "power7-crlogical" 3
222
  (and (eq_attr "type" "cr_logical")
223
       (eq_attr "cpu" "power7"))
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  "du1_power7,cru_power7")
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226
(define_insn_reservation "power7-delayedcr" 3
227
  (and (eq_attr "type" "delayed_cr")
228
       (eq_attr "cpu" "power7"))
229
  "du1_power7,cru_power7")
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231
(define_insn_reservation "power7-mfcr" 6
232
  (and (eq_attr "type" "mfcr")
233
       (eq_attr "cpu" "power7"))
234
  "du1_power7,cru_power7")
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236
(define_insn_reservation "power7-mfcrf" 3
237
  (and (eq_attr "type" "mfcrf")
238
       (eq_attr "cpu" "power7"))
239
  "du1_power7,cru_power7")
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241
(define_insn_reservation "power7-mtcr" 3
242
  (and (eq_attr "type" "mtcr")
243
       (eq_attr "cpu" "power7"))
244
  "DU4_power7,cru_power7+FXU_power7")
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247
; BR Unit
248
; Branches take dispatch Slot 4.  The presence_sets prevent other insn from
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; grabbing previous dispatch slots once this is assigned.
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(define_insn_reservation "power7-branch" 3
251
  (and (eq_attr "type" "jmpreg,branch")
252
       (eq_attr "cpu" "power7"))
253
  "(du5_power7\
254
   |du4_power7+du5_power7\
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   |du3_power7+du4_power7+du5_power7\
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   |du2_power7+du3_power7+du4_power7+du5_power7\
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   |du1_power7+du2_power7+du3_power7+du4_power7+du5_power7),bpu_power7")
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260
; VS Unit (includes FP/VSX/VMX/DFP)
261
(define_insn_reservation "power7-fp" 6
262
  (and (eq_attr "type" "fp,dmul")
263
       (eq_attr "cpu" "power7"))
264
  "DU_power7,VSU_power7")
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266
(define_bypass 8 "power7-fp" "power7-branch")
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268
(define_insn_reservation "power7-fpcompare" 4
269
  (and (eq_attr "type" "fpcompare")
270
       (eq_attr "cpu" "power7"))
271
  "DU_power7,VSU_power7")
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273
(define_insn_reservation "power7-sdiv" 26
274
  (and (eq_attr "type" "sdiv")
275
       (eq_attr "cpu" "power7"))
276
  "DU_power7,VSU_power7")
277
 
278
(define_insn_reservation "power7-ddiv" 32
279
  (and (eq_attr "type" "ddiv")
280
       (eq_attr "cpu" "power7"))
281
  "DU_power7,VSU_power7")
282
 
283
(define_insn_reservation "power7-sqrt" 31
284
  (and (eq_attr "type" "ssqrt")
285
       (eq_attr "cpu" "power7"))
286
  "DU_power7,VSU_power7")
287
 
288
(define_insn_reservation "power7-dsqrt" 43
289
  (and (eq_attr "type" "dsqrt")
290
       (eq_attr "cpu" "power7"))
291
  "DU_power7,VSU_power7")
292
 
293
(define_insn_reservation "power7-vecsimple" 2
294
  (and (eq_attr "type" "vecsimple")
295
       (eq_attr "cpu" "power7"))
296
  "du1_power7,VSU_power7")
297
 
298
(define_insn_reservation "power7-veccmp" 7
299
  (and (eq_attr "type" "veccmp")
300
       (eq_attr "cpu" "power7"))
301
  "du1_power7,VSU_power7")
302
 
303
(define_insn_reservation "power7-vecfloat" 7
304
  (and (eq_attr "type" "vecfloat")
305
       (eq_attr "cpu" "power7"))
306
  "du1_power7,VSU_power7")
307
 
308
(define_bypass 6 "power7-vecfloat" "power7-vecfloat")
309
 
310
(define_insn_reservation "power7-veccomplex" 7
311
  (and (eq_attr "type" "veccomplex")
312
       (eq_attr "cpu" "power7"))
313
  "du1_power7,VSU_power7")
314
 
315
(define_insn_reservation "power7-vecperm" 3
316
  (and (eq_attr "type" "vecperm")
317
       (eq_attr "cpu" "power7"))
318
  "du2_power7,VSU_power7")

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