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1 709 jeremybenn 
;; Scheduling description for z10 (cpu 2097).
2 
;; Copyright (C) 2008, 2010 Free Software Foundation, Inc.
3 
;; Contributed by Wolfgang Gellerich (gellerich@de.ibm.com).
4 
 
5 
 
6 
; General naming conventions used in this file:
7 
; - The two pipelines are called S and T, respectively.
8 
; - A name ending "_S" or "_T" indicates that something happens in
9 
;   (or belongs to) this pipeline.
10 
; - A name ending "_ANY" indicates that something happens in (or belongs
11 
;   to) either of the two pipelines.
12 
; - A name ending "_BOTH" indicates that something happens in (or belongs
13 
;   to) both pipelines.
14 
 
15 
 
16 
;; Automaton and components.
17 
 
18 
(define_automaton "z10_cpu")
19 
 
20 
(define_cpu_unit "z10_e1_S, z10_e1_T"  "z10_cpu")
21 
(define_reservation "z10_e1_ANY" "(z10_e1_S | z10_e1_T)")
22 
(define_reservation "z10_e1_BOTH" "(z10_e1_S + z10_e1_T)")
23 
 
24 
 
25 
; Both pipelines can execute a branch instruction, and branch
26 
; instructions can be grouped with all other groupable instructions
27 
; but not with a second branch instruction.
28 
 
29 
(define_cpu_unit "z10_branch_ANY"  "z10_cpu")
30 
 
31 
(define_insn_reservation "z10_branch" 4
32 
  (and (eq_attr "cpu" "z10")
33 
       (eq_attr "type" "branch"))
34 
  "z10_branch_ANY + z10_e1_ANY, z10_Gate_ANY")
35 
 
36 
 
37 
; Z10 operand and result forwarding.
38 
 
39 
; Instructions marked with the attributes as z10_fwd or z10_fr can
40 
; forward a value they load from one of their operants into a register
41 
; if the instruction in the second pipeline reads the same register.
42 
; The second operation must be superscalar.  Instructions marked as
43 
; z10_rec or z10_fr can receive a value they read from a register is
44 
; this register gets updated by an instruction in the first pipeline.
45 
; The first instruction must be superscalar.
46 
 
47 
 
48 
; Forwarding from z10_fwd and z10_fr to z10_super.
49 
 
50 
(define_bypass 0 "z10_la_fwd, z10_la_fwd_A1, z10_larl_fwd, z10_larl_fwd_A3, \
51 
                  z10_load_fwd, z10_load_fwd_A3, \
52 
                  z10_other_fwd, z10_other_fwd_A1, z10_other_fwd_A3, \
53 
                  z10_other_fr, z10_other_fr_A3, z10_other_fr_E1, \
54 
                  z10_other_fwd_E1, z10_lr_fr, z10_lr_fr_E1, \
55 
                  z10_int_fwd, z10_int_fwd_A1, z10_int_fwd_A3, \
56 
                  z10_int_fwd_E1, z10_int_fr, z10_int_fr_E1, \
57 
                  z10_int_fr_A3"
58 
                  "z10_other_super, z10_other_super_c_E1, z10_other_super_E1, \
59 
                  z10_int_super, z10_int_super_E1, \
60 
                  z10_lr, z10_store_super"
61 
                  " ! s390_agen_dep_p")
62 
 
63 
 
64 
; Forwarding from z10_super to frz10_ and z10_rec.
65 
 
66 
(define_bypass 0 "z10_other_super, z10_other_super_E1, z10_other_super_c_E1, \
67 
                  z10_int_super, z10_int_super_E1, \
68 
                  z10_larl_super_E1, z10_larl_super, \
69 
                  z10_store_super"
70 
                  "z10_int_fr, z10_int_fr_E1, z10_int_fr_A3, \
71 
                  z10_other_fr, z10_other_fr_A3, z10_lr_fr, z10_lr_fr_E1, \
72 
                  z10_other_fr_E1, z10_store_rec"
73 
                  " ! s390_agen_dep_p")
74 
 
75 
 
76 
; Forwarding from z10_fwd and z10_fr to z10_rec and z10_fr.
77 
 
78 
(define_bypass 0 "z10_la_fwd, z10_la_fwd_A1, z10_larl_fwd, z10_larl_fwd_A3, \
79 
                  z10_load_fwd, z10_load_fwd_A3, \
80 
                  z10_other_fwd, z10_other_fwd_A1, z10_other_fwd_A3, \
81 
                  z10_other_fr, z10_other_fr_A3, z10_other_fr_E1, \
82 
                  z10_other_fwd_E1, \
83 
                  z10_lr_fr, z10_lr_fr_E1, \
84 
                  z10_int_fwd, z10_int_fwd_A1, z10_int_fwd_A3, \
85 
                  z10_int_fwd_E1, z10_int_fr, z10_int_fr_E1, \
86 
                  z10_int_fr_A3"
87 
                  "z10_int_fr, z10_int_fr_E1, z10_int_fr_A3, \
88 
                  z10_other_fr, z10_other_fr_A3, z10_lr_fr, z10_lr_fr_E1, \
89 
                  z10_other_fr_E1, z10_store_rec"
90 
                  " ! s390_agen_dep_p")
91 
 
92 
 
93 
;
94 
; Simple insns
95 
;
96 
 
97 
; Here is the cycle diagram for FXU-executed instructions:
98 
; ... A1 A2 A3 E1 P1 P2 P3 R0 ...
99 
;        ^              ^  ^
100 
;        |              |  updated GPR is available
101 
;        |              write to GPR
102 
;        instruction reads GPR during this cycle
103 
 
104 
 
105 
; Variants of z10_int follow.
106 
 
107 
(define_insn_reservation "z10_int" 6
108 
  (and (and (eq_attr "cpu" "z10")
109 
            (eq_attr "type" "integer"))
110 
       (and (eq_attr "atype" "reg")
111 
             (and (and (eq_attr "z10prop" "!z10_super")
112 
                       (eq_attr "z10prop" "!z10_super_c"))
113 
                  (and (and (and (and (eq_attr "z10prop" "!z10_super_E1")
114 
                                      (eq_attr "z10prop" "!z10_super_c_E1"))
115 
                                  (eq_attr "z10prop" "!z10_fwd"))
116 
                             (and (eq_attr "z10prop" "!z10_fwd_A1")
117 
                                  (eq_attr "z10prop" "!z10_fwd_A3")))
118 
                        (and (and (eq_attr "z10prop" "!z10_fwd_E1")
119 
                                  (eq_attr "z10prop" "!z10_fr"))
120 
                             (and (eq_attr "z10prop" "!z10_fr_E1")
121 
                                  (eq_attr "z10prop" "!z10_fr_A3")))))))
122 
  "z10_e1_ANY, z10_Gate_ANY")
123 
 
124 
(define_insn_reservation "z10_int_super" 6
125 
  (and (eq_attr "cpu" "z10")
126 
       (and (eq_attr "type" "integer")
127 
            (and (eq_attr "atype" "reg")
128 
                 (ior (eq_attr "z10prop" "z10_super")
129 
                      (eq_attr "z10prop" "z10_super_c")))))
130 
  "z10_e1_ANY, z10_Gate_ANY")
131 
 
132 
(define_insn_reservation "z10_int_super_E1" 6
133 
  (and (eq_attr "cpu" "z10")
134 
       (and (eq_attr "type" "integer")
135 
            (and (eq_attr "atype" "reg")
136 
                 (ior (eq_attr "z10prop" "z10_super_E1")
137 
                      (eq_attr "z10prop" "z10_super_c_E1")))))
138 
  "z10_e1_ANY, z10_Gate_ANY")
139 
 
140 
(define_insn_reservation "z10_int_fwd" 6
141 
  (and (eq_attr "cpu" "z10")
142 
       (and (eq_attr "type" "integer")
143 
            (and (eq_attr "atype" "reg")
144 
                 (eq_attr "z10prop" "z10_fwd"))))
145 
  "z10_e1_ANY, z10_Gate_ANY")
146 
 
147 
(define_insn_reservation "z10_int_fwd_A1" 6
148 
  (and (eq_attr "cpu" "z10")
149 
       (and (eq_attr "type" "integer")
150 
            (and (eq_attr "atype" "reg")
151 
                 (eq_attr "z10prop" "z10_fwd_A1"))))
152 
  "z10_e1_ANY, z10_Gate_ANY")
153 
 
154 
(define_insn_reservation "z10_int_fwd_A3" 6
155 
  (and (eq_attr "cpu" "z10")
156 
       (and (eq_attr "type" "integer")
157 
            (and (eq_attr "atype" "reg")
158 
                 (eq_attr "z10prop" "z10_fwd_A3"))))
159 
  "z10_e1_ANY, z10_Gate_ANY")
160 
 
161 
(define_insn_reservation "z10_int_fwd_E1" 6
162 
  (and (eq_attr "cpu" "z10")
163 
       (and (eq_attr "type" "integer")
164 
            (and (eq_attr "atype" "reg")
165 
                 (eq_attr "z10prop" "z10_fwd_E1"))))
166 
  "z10_e1_ANY, z10_Gate_ANY")
167 
 
168 
(define_insn_reservation "z10_int_fr" 6
169 
  (and (eq_attr "cpu" "z10")
170 
       (and (eq_attr "type" "integer")
171 
            (and (eq_attr "atype" "reg")
172 
                 (eq_attr "z10prop" "z10_fr"))))
173 
  "z10_e1_ANY, z10_Gate_ANY")
174 
 
175 
(define_insn_reservation "z10_int_fr_E1" 6
176 
  (and (eq_attr "cpu" "z10")
177 
       (and (eq_attr "type" "integer")
178 
            (and (eq_attr "atype" "reg")
179 
                 (eq_attr "z10prop" "z10_fr_E1"))))
180 
  "z10_e1_ANY, z10_Gate_ANY")
181 
 
182 
(define_insn_reservation "z10_int_fr_A3" 6
183 
  (and (eq_attr "cpu" "z10")
184 
       (and (eq_attr "type" "integer")
185 
            (and (eq_attr "atype" "reg")
186 
                 (eq_attr "z10prop" "z10_fr_A3"))))
187 
  "z10_e1_ANY, z10_Gate_ANY")
188 
 
189 
; END of z10_int variants
190 
 
191 
 
192 
(define_insn_reservation "z10_agen" 6
193 
  (and (eq_attr "cpu" "z10")
194 
       (and (eq_attr "type" "integer")
195 
            (eq_attr "atype" "agen")))
196 
  "z10_e1_ANY, z10_Gate_ANY")
197 
 
198 
 
199 
(define_insn_reservation "z10_lr" 6
200 
  (and (eq_attr "cpu" "z10")
201 
       (and (eq_attr "type" "lr")
202 
            (and (eq_attr "z10prop" "!z10_fr")
203 
                 (eq_attr "z10prop" "!z10_fr_E1"))))
204 
  "z10_e1_ANY, z10_Gate_ANY")
205 
 
206 
(define_insn_reservation "z10_lr_fr" 6
207 
  (and (eq_attr "cpu" "z10")
208 
       (and (eq_attr "type" "lr")
209 
            (eq_attr "z10prop" "z10_fr")))
210 
  "z10_e1_ANY, z10_Gate_ANY")
211 
 
212 
(define_insn_reservation "z10_lr_fr_E1" 6
213 
  (and (eq_attr "cpu" "z10")
214 
       (and (eq_attr "type" "lr")
215 
            (eq_attr "z10prop" "z10_fr_E1")))
216 
  "z10_e1_ANY, z10_Gate_ANY")
217 
 
218 
(define_insn_reservation "z10_la" 6
219 
  (and (eq_attr "cpu" "z10")
220 
       (and (eq_attr "type" "la")
221 
            (and (eq_attr "z10prop" "!z10_fwd")
222 
                 (eq_attr "z10prop" "!z10_fwd_A1"))))
223 
  "z10_e1_ANY, z10_Gate_ANY")
224 
 
225 
(define_insn_reservation "z10_la_fwd" 6
226 
  (and (eq_attr "cpu" "z10")
227 
       (and (eq_attr "type" "la")
228 
            (eq_attr "z10prop" "z10_fwd")))
229 
  "z10_e1_ANY, z10_Gate_ANY")
230 
 
231 
(define_insn_reservation "z10_la_fwd_A1" 6
232 
  (and (eq_attr "cpu" "z10")
233 
       (and (eq_attr "type" "la")
234 
            (eq_attr "z10prop" "z10_fwd_A1")))
235 
  "z10_e1_ANY, z10_Gate_ANY")
236 
 
237 
 
238 
; larl-type instructions
239 
 
240 
(define_insn_reservation "z10_larl" 6
241 
  (and (eq_attr "cpu" "z10")
242 
       (and (eq_attr "type" "larl")
243 
                 (and (eq_attr "z10prop" "!z10_super_A1")
244 
                      (and (eq_attr "z10prop" "!z10_fwd")
245 
                           (and (eq_attr "z10prop" "!z10_fwd_A3")
246 
                                (and (eq_attr "z10prop" "!z10_super")
247 
                                     (eq_attr "z10prop" "!z10_super_c"))
248 
                                (and (eq_attr "z10prop" "!z10_super_E1")
249 
                                     (eq_attr "z10prop" "!z10_super_c_E1")))))))
250 
  "z10_e1_ANY, z10_Gate_ANY")
251 
 
252 
(define_insn_reservation "z10_larl_super" 6
253 
  (and (eq_attr "cpu" "z10")
254 
       (and (eq_attr "type" "larl")
255 
            (and (eq_attr "z10prop" "z10_super")
256 
                 (eq_attr "z10prop" "z10_super_c"))))
257 
  "z10_e1_ANY, z10_Gate_ANY")
258 
 
259 
(define_insn_reservation "z10_larl_fwd" 6
260 
  (and (eq_attr "cpu" "z10")
261 
       (and (eq_attr "type" "larl")
262 
            (eq_attr "z10prop" "z10_fwd")))
263 
  "z10_e1_ANY, z10_Gate_ANY")
264 
 
265 
(define_insn_reservation "z10_larl_fwd_A3" 6
266 
  (and (eq_attr "cpu" "z10")
267 
       (and (eq_attr "type" "larl")
268 
            (eq_attr "z10prop" "z10_fwd_A3")))
269 
  "z10_e1_ANY, z10_Gate_ANY")
270 
 
271 
 
272 
(define_insn_reservation "z10_larl_A1" 6
273 
  (and (eq_attr "cpu" "z10")
274 
       (and (eq_attr "type" "larl")
275 
            (eq_attr "z10prop" "z10_super_A1")))
276 
  "z10_e1_ANY, z10_Gate_ANY")
277 
;  "z10_e1_ANY")
278 
 
279 
(define_insn_reservation "z10_larl_super_E1" 6
280 
  (and (eq_attr "cpu" "z10")
281 
       (and (eq_attr "type" "larl")
282 
            (ior (eq_attr "z10prop" "z10_super_E1")
283 
                 (eq_attr "z10prop" "z10_super_c_E1"))))
284 
  "z10_e1_ANY, z10_Gate_ANY")
285 
;  "z10_e1_ANY")
286 
 
287 
 
288 
(define_insn_reservation "z10_load" 6
289 
  (and (eq_attr "cpu" "z10")
290 
       (and (eq_attr "type" "load")
291 
            (and (eq_attr "z10prop" "!z10_fwd")
292 
                 (eq_attr "z10prop" "!z10_fwd_A3"))))
293 
  "z10_e1_ANY, z10_Gate_ANY")
294 
 
295 
(define_insn_reservation "z10_load_fwd" 6
296 
  (and (eq_attr "cpu" "z10")
297 
       (and (eq_attr "type" "load")
298 
            (eq_attr "z10prop" "z10_fwd")))
299 
  "z10_e1_ANY, z10_Gate_ANY")
300 
;  "z10_e1_ANY")
301 
 
302 
(define_insn_reservation "z10_load_fwd_A3" 6
303 
  (and (eq_attr "cpu" "z10")
304 
       (and (eq_attr "type" "load")
305 
            (eq_attr "z10prop" "z10_fwd_A3")))
306 
  "z10_e1_ANY, z10_Gate_ANY")
307 
;  "z10_e1_ANY")
308 
 
309 
(define_insn_reservation "z10_store" 6
310 
  (and (eq_attr "cpu" "z10")
311 
       (and (eq_attr "type" "store")
312 
            (and (eq_attr "z10prop" "!z10_rec")
313 
                 (and (eq_attr "z10prop" "!z10_super")
314 
                      (eq_attr "z10prop" "!z10_super_c")))))
315 
  "z10_e1_ANY, z10_Gate_ANY")
316 
 
317 
(define_insn_reservation "z10_store_super" 6
318 
  (and (eq_attr "cpu" "z10")
319 
       (and (eq_attr "type" "store")
320 
            (ior (eq_attr "z10prop" "z10_super")
321 
                 (eq_attr "z10prop" "z10_super_c"))))
322 
  "z10_e1_ANY, z10_Gate_ANY")
323 
 
324 
(define_insn_reservation "z10_store_rec" 6
325 
  (and (eq_attr "cpu" "z10")
326 
       (and (eq_attr "type" "store")
327 
            (eq_attr "z10prop" "z10_rec")))
328 
  "z10_e1_ANY, z10_Gate_ANY")
329 
 
330 
; The default_latency is chosen to drain off the pipeline.
331 
(define_insn_reservation "z10_call" 14
332 
  (and (eq_attr "cpu" "z10")
333 
       (eq_attr "type" "jsr"))
334 
  "z10_e1_BOTH*4, z10_Gate_BOTH")
335 
 
336 
; The default latency is for worst case.  CS and CSG take one
337 
; cycle only (i.e. latency would be 6).
338 
(define_insn_reservation "z10_sem" 9
339 
  (and (eq_attr "cpu" "z10")
340 
       (eq_attr "type" "sem"))
341 
  "z10_e1_BOTH*5, z10_Gate_ANY")
342 
 
343 
(define_insn_reservation "z10_cs" 6
344 
  (and (eq_attr "cpu" "z10")
345 
       (eq_attr "type" "cs"))
346 
  "z10_e1_BOTH, z10_Gate_BOTH")
347 
 
348 
(define_insn_reservation "z10_vs" 6
349 
  (and (eq_attr "cpu" "z10")
350 
       (eq_attr "type" "vs"))
351 
  "z10_e1_BOTH*4, z10_Gate_BOTH")
352 
 
353 
; Load and store multiple. Actual number of cycles
354 
; in unknown at compile.time.
355 
(define_insn_reservation "z10_stm" 10
356 
  (and (eq_attr "cpu" "z10")
357 
       (ior (eq_attr "type" "stm")
358 
            (eq_attr "type" "lm")))
359 
  "z10_e1_BOTH*4, z10_Gate_BOTH")
360 
 
361 
 
362 
; Subsets of z10_other follow.
363 
 
364 
(define_insn_reservation "z10_other" 6
365 
  (and (and (eq_attr "cpu" "z10")
366 
            (eq_attr "type" "other"))
367 
       (and (and (eq_attr "z10prop" "!z10_fwd")
368 
                 (eq_attr "z10prop" "!z10_fwd_A1"))
369 
            (and (and  (and (eq_attr "z10prop" "!z10_fr_A3")
370 
                            (eq_attr "z10prop" "!z10_fwd_A3"))
371 
                       (and (eq_attr "z10prop" "!z10_fr")
372 
                            (eq_attr "z10prop" "!z10_fr_E1")))
373 
                 (and  (and (and (eq_attr "z10prop" "!z10_super")
374 
                                  (eq_attr "z10prop" "!z10_super_c"))
375 
                            (eq_attr "z10prop" "!z10_super_c_E1"))
376 
                       (and (eq_attr "z10prop" "!z10_super_E1")
377 
                            (eq_attr "z10prop" "!z10_fwd_E1"))))))
378 
  "z10_e1_BOTH, z10_Gate_BOTH")
379 
 
380 
(define_insn_reservation "z10_other_fr_E1" 6
381 
  (and (eq_attr "cpu" "z10")
382 
       (and (eq_attr "type" "other")
383 
            (eq_attr "z10prop" "z10_fr_E1")))
384 
  "z10_e1_BOTH, z10_Gate_BOTH")
385 
 
386 
(define_insn_reservation "z10_other_super_c_E1" 6
387 
  (and (eq_attr "cpu" "z10")
388 
       (and (eq_attr "type" "other")
389 
            (eq_attr "z10prop" "z10_super_c_E1")))
390 
  "z10_e1_BOTH, z10_Gate_BOTH")
391 
 
392 
(define_insn_reservation "z10_other_super_E1" 6
393 
  (and (eq_attr "cpu" "z10")
394 
       (and (eq_attr "type" "other")
395 
            (eq_attr "z10prop" "z10_super_E1")))
396 
  "z10_e1_BOTH, z10_Gate_BOTH")
397 
 
398 
(define_insn_reservation "z10_other_fwd_E1" 6
399 
  (and (eq_attr "cpu" "z10")
400 
       (and (eq_attr "type" "other")
401 
            (eq_attr "z10prop" "z10_fwd_E1")))
402 
  "z10_e1_BOTH, z10_Gate_BOTH")
403 
 
404 
(define_insn_reservation "z10_other_fwd" 6
405 
  (and (eq_attr "cpu" "z10")
406 
       (and (eq_attr "type" "other")
407 
            (eq_attr "z10prop" "z10_fwd")))
408 
  "z10_e1_BOTH, z10_Gate_BOTH")
409 
 
410 
(define_insn_reservation "z10_other_fwd_A3" 6
411 
  (and (eq_attr "cpu" "z10")
412 
       (and (eq_attr "type" "other")
413 
            (eq_attr "z10prop" "z10_fwd_A3")))
414 
  "z10_e1_BOTH, z10_Gate_BOTH")
415 
 
416 
(define_insn_reservation "z10_other_fwd_A1" 6
417 
  (and (eq_attr "cpu" "z10")
418 
       (and (eq_attr "type" "other")
419 
            (eq_attr "z10prop" "z10_fwd_A1")))
420 
  "z10_e1_BOTH, z10_Gate_BOTH")
421 
 
422 
(define_insn_reservation "z10_other_fr" 6
423 
  (and (eq_attr "cpu" "z10")
424 
       (and (eq_attr "type" "other")
425 
            (eq_attr "z10prop" "z10_fr")))
426 
  "z10_e1_BOTH, z10_Gate_BOTH")
427 
 
428 
(define_insn_reservation "z10_other_fr_A3" 6
429 
  (and (eq_attr "cpu" "z10")
430 
       (and (eq_attr "type" "other")
431 
            (eq_attr "z10prop" "z10_fr_A3")))
432 
  "z10_e1_BOTH, z10_Gate_BOTH")
433 
 
434 
(define_insn_reservation "z10_other_super" 6
435 
  (and (eq_attr "cpu" "z10")
436 
       (and (eq_attr "type" "other")
437 
            (ior (eq_attr "z10prop" "z10_super")
438 
                 (eq_attr "z10prop" "z10_super_c"))))
439 
  "z10_e1_BOTH, z10_Gate_BOTH")
440 
 
441 
; END of z10_other subsets.
442 
 
443 
 
444 
;
445 
; Floating point insns
446 
;
447 
 
448 
; Z10 executes the following integer operations in the BFU pipeline.
449 
 
450 
(define_insn_reservation "z10_mul_sidi" 12
451 
  (and (eq_attr "cpu" "z10")
452 
       (eq_attr "type" "imulsi,imuldi,imulhi"))
453 
  "z10_e1_BOTH, z10_Gate_FP")
454 
 
455 
; Some variants take fewer cycles, but that is not relevant here.
456 
(define_insn_reservation "z10_div" 162
457 
  (and (eq_attr "cpu" "z10")
458 
       (eq_attr "type" "idiv"))
459 
  "z10_e1_BOTH*4, z10_Gate_FP")
460 
 
461 
 
462 
; BFP multiplication and general instructions
463 
 
464 
(define_insn_reservation "z10_fsimpdf" 6
465 
  (and (eq_attr "cpu" "z10")
466 
       (eq_attr "type" "fsimpdf,fmuldf,fmadddf"))
467 
  "z10_e1_BOTH, z10_Gate_FP")
468 
 
469 
(define_insn_reservation "z10_fsimpsf" 6
470 
  (and (eq_attr "cpu" "z10")
471 
       (eq_attr "type" "fsimpsf,fmulsf,fmaddsf"))
472 
  "z10_e1_BOTH, z10_Gate_FP")
473 
 
474 
(define_insn_reservation "z10_fmultf" 52
475 
  (and (eq_attr "cpu" "z10")
476 
       (eq_attr "type" "fmultf"))
477 
  "z10_e1_BOTH*4, z10_Gate_FP")
478 
 
479 
(define_insn_reservation "z10_fsimptf" 14
480 
  (and (eq_attr "cpu" "z10")
481 
       (eq_attr "type" "fsimptf"))
482 
  "z10_e1_BOTH*2, z10_Gate_FP")
483 
 
484 
 
485 
; BFP division
486 
 
487 
(define_insn_reservation "z10_fdivtf" 113
488 
  (and (eq_attr "cpu" "z10")
489 
       (eq_attr "type" "fdivtf"))
490 
  "z10_e1_T*4, z10_Gate_FP")
491 
 
492 
(define_insn_reservation "z10_fdivdf" 41
493 
  (and (eq_attr "cpu" "z10")
494 
       (eq_attr "type" "fdivdf"))
495 
  "z10_e1_T*4, z10_Gate_FP")
496 
 
497 
(define_insn_reservation "z10_fdivsf" 34
498 
  (and (eq_attr "cpu" "z10")
499 
       (eq_attr "type" "fdivsf"))
500 
  "z10_e1_T*4, z10_Gate_FP")
501 
 
502 
 
503 
; BFP sqrt
504 
 
505 
(define_insn_reservation "z10_fsqrtsf" 41
506 
  (and (eq_attr "cpu" "z10")
507 
       (eq_attr "type" "fsqrtsf"))
508 
  "z10_e1_T*4, z10_Gate_FP")
509 
 
510 
(define_insn_reservation "z10_fsqrtdf" 54
511 
  (and (eq_attr "cpu" "z10")
512 
       (eq_attr "type" "fsqrtdf"))
513 
  "z10_e1_T*4, z10_Gate_FP")
514 
 
515 
(define_insn_reservation "z10_fsqrtf" 122
516 
  (and (eq_attr "cpu" "z10")
517 
       (eq_attr "type" "fsqrttf"))
518 
  "z10_e1_T*4, z10_Gate_FP")
519 
 
520 
 
521 
; BFP load and store
522 
 
523 
(define_insn_reservation "z10_floadtf" 12
524 
  (and (eq_attr "cpu" "z10")
525 
       (eq_attr "type" "floadtf"))
526 
  "z10_e1_T, z10_Gate_FP")
527 
 
528 
(define_insn_reservation "z10_floaddf" 1
529 
  (and (eq_attr "cpu" "z10")
530 
       (eq_attr "type" "floaddf"))
531 
  "z10_e1_T, z10_Gate_FP")
532 
 
533 
(define_insn_reservation "z10_floadsf" 1
534 
  (and (eq_attr "cpu" "z10")
535 
       (eq_attr "type" "floadsf"))
536 
  "z10_e1_T, z10_Gate_FP")
537 
 
538 
(define_insn_reservation "z10_fstoredf" 12
539 
  (and (eq_attr "cpu" "z10")
540 
       (eq_attr "type" "fstoredf,fstoredd"))
541 
  "z10_e1_T, z10_Gate_FP")
542 
 
543 
(define_insn_reservation "z10_fstoresf" 12
544 
  (and (eq_attr "cpu" "z10")
545 
       (eq_attr "type" "fstoresf,fstoresd"))
546 
  "z10_e1_T, z10_Gate_FP")
547 
 
548 
 
549 
; BFP truncate
550 
(define_insn_reservation "z10_ftrunctf" 16
551 
  (and (eq_attr "cpu" "z10")
552 
       (eq_attr "type" "ftrunctf"))
553 
  "z10_e1_T, z10_Gate_FP")
554 
 
555 
(define_insn_reservation "z10_ftruncdf" 12
556 
  (and (eq_attr "cpu" "z10")
557 
       (eq_attr "type" "ftruncdf"))
558 
  "z10_e1_T, z10_Gate_FP")
559 
 
560 
 
561 
; Conversion between BFP and int.
562 
(define_insn_reservation "z10_ftoi" 13
563 
  (and (eq_attr "cpu" "z10")
564 
       (eq_attr "type" "ftoi"))
565 
  "z10_e1_T, z10_Gate_FP")
566 
 
567 
(define_insn_reservation "z10_itoftf" 14
568 
  (and (eq_attr "cpu" "z10")
569 
       (eq_attr "type" "itoftf"))
570 
  "z10_e1_T*2, z10_Gate_FP")
571 
 
572 
(define_insn_reservation "z10_itofsfdf" 12
573 
  (and (eq_attr "cpu" "z10")
574 
       (eq_attr "type" "itofdf,itofsf"))
575 
  "z10_e1_T, z10_Gate_FP")
576 
 
577 
 
578 
 
579 
; BFP-related bypasses.  There is no bypass for extended mode.
580 
(define_bypass 1 "z10_fsimpdf" "z10_fstoredf")
581 
(define_bypass 1 "z10_fsimpsf" "z10_fstoresf")
582 
(define_bypass 1 "z10_floaddf" "z10_fsimpdf, z10_fstoredf")
583 
(define_bypass 1 "z10_floadsf" "z10_fsimpsf, z10_fstoresf")
584 
 
585 
 
586 
;
587 
; insn_reservations for DFP instructions.
588 
;
589 
 
590 
; Exact number of cycles is not known at compile-time.
591 
(define_insn_reservation "z10_fdivddtd" 40
592 
  (and (eq_attr "cpu" "z10")
593 
       (eq_attr "type" "fdivdd,fdivtd"))
594 
  "z10_e1_BOTH,z10_Gate_DFU")
595 
 
596 
(define_insn_reservation "z10_ftruncsd" 38
597 
  (and (eq_attr "cpu" "z10")
598 
       (eq_attr "type" "ftruncsd"))
599 
  "z10_e1_BOTH*4,z10_Gate_DFU")
600 
 
601 
(define_insn_reservation "z10_ftruncdd" 340
602 
  (and (eq_attr "cpu" "z10")
603 
       (eq_attr "type" "ftruncsd"))
604 
  "z10_e1_BOTH*4,z10_Gate_DFU")
605 
 
606 
(define_insn_reservation "z10_floaddd" 12
607 
  (and (eq_attr "cpu" "z10")
608 
       (eq_attr "type" "floaddd"))
609 
  "z10_e1_BOTH,z10_Gate_DFU")
610 
 
611 
(define_insn_reservation "z10_floadsd" 12
612 
  (and (eq_attr "cpu" "z10")
613 
       (eq_attr "type" "floadsd"))
614 
  "z10_e1_BOTH,z10_Gate_DFU")
615 
 
616 
; Exact number of cycles is not known at compile-time.
617 
(define_insn_reservation "z10_fmulddtd" 35
618 
  (and (eq_attr "cpu" "z10")
619 
       (eq_attr "type" "fmuldd,fmultd"))
620 
  "z10_e1_BOTH,z10_Gate_DFU")
621 
 
622 
(define_insn_reservation "z10_fsimpdd" 17
623 
  (and (eq_attr "cpu" "z10")
624 
       (eq_attr "type" "fsimpdd"))
625 
  "z10_e1_BOTH,z10_Gate_DFU")
626 
 
627 
(define_insn_reservation "z10_fsimpsd" 17
628 
  (and (eq_attr "cpu" "z10")
629 
       (eq_attr "type" "fsimpsd"))
630 
  "z10_e1_BOTH,z10_Gate_DFU")
631 
 
632 
(define_insn_reservation "z10_fsimptd" 18
633 
  (and (eq_attr "cpu" "z10")
634 
       (eq_attr "type" "fsimptd"))
635 
  "z10_e1_BOTH,z10_Gate_DFU")
636 
 
637 
(define_insn_reservation "z10_itofdd" 36
638 
  (and (eq_attr "cpu" "z10")
639 
       (eq_attr "type" "itofdd"))
640 
  "z10_e1_BOTH*3,z10_Gate_DFU")
641 
 
642 
(define_insn_reservation "z10_itoftd" 49
643 
  (and (eq_attr "cpu" "z10")
644 
       (eq_attr "type" "itoftd"))
645 
  "z10_e1_BOTH*3,z10_Gate_DFU")
646 
 
647 
; Exact number of cycles is not known at compile-time.
648 
(define_insn_reservation "z10_ftoidfp" 30
649 
  (and (eq_attr "cpu" "z10")
650 
       (eq_attr "type" "ftoidfp"))
651 
  "z10_e1_BOTH*3,z10_Gate_DFU")
652 
 
653 
 
654 
;
655 
; Address-related bypasses
656 
;
657 
 
658 
; Here is the cycle diagram for address-related bypasses:
659 
; ... G1 G2 G3 A0 A1 A2 A3 E1 P1 P2 P3 R0 ...
660 
;         ^  ^    ^     ^  ^        ^
661 
;         |  |    |     |  |        without bypass, its available AFTER this cycle
662 
;         |  |    |     |  E1-type bypasses provide the new value AFTER this cycle
663 
;         |  |    |     A3-type bypasses provide the new value AFTER this cycle
664 
;         |  |    A1-type bypasses provide the new value AFTER this cycle
665 
;         |  AGI resolution, actual USE of new value is DURING this cycle
666 
;         AGI detection
667 
 
668 
(define_bypass 3 "z10_larl_A1, z10_la_fwd_A1, z10_other_fwd_A1, \
669 
                  z10_int_fwd_A1"
670 
                 "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
671 
                  z10_store, \
672 
                  z10_cs, z10_stm, z10_other"
673 
                 "s390_agen_dep_p")
674 
 
675 
(define_bypass 5 "z10_larl_fwd_A3, z10_load_fwd_A3, z10_other_fwd_A3, \
676 
                  z10_other_fr_A3, z10_int_fwd_A3, z10_int_fr_A3"
677 
                 "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
678 
                  z10_store, \
679 
                  z10_cs, z10_stm, z10_other"
680 
                 "s390_agen_dep_p")
681 
 
682 
(define_bypass 6 "z10_other_fr_E1, z10_other_super_c_E1, z10_other_super_E1, \
683 
                  z10_other_fwd_E1, \
684 
                  z10_lr_fr_E1, z10_larl_super_E1, \
685 
                  z10_int_super_E1, z10_int_fwd_E1, z10_int_fr_E1"
686 
                 "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
687 
                  z10_store, \
688 
                  z10_cs, z10_stm, z10_other"
689 
                 "s390_agen_dep_p")
690 
 
691 
(define_bypass 9 "z10_int_super, z10_int_fwd, z10_int_fr"
692 
                 "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
693 
                  z10_store, \
694 
                  z10_cs, z10_stm, z10_other"
695 
                 "s390_agen_dep_p")
696 
 
697 
 
698 
 
699 
;
700 
; Try to avoid transitions between DFU-, BFU- and FXU-executed instructions as there is a
701 
; dispatch delay required.
702 
;
703 
 
704 
 
705 
; Declaration for some pseudo-pipeline stages that reflect the
706 
; dispatch gap when issueing an INT/FXU/BFU-executed instruction after
707 
; an instruction executed by a different unit has been executed.  The
708 
; approach is that we pretend a pipelined execution of BFU operations
709 
; with as many stages as the gap is long and request that none of
710 
; these stages is busy when issueing a FXU- or DFU-executed
711 
; instruction.  Similar for FXU- and DFU-executed instructions.
712 
 
713 
; Declaration for FPU stages.
714 
(define_cpu_unit "z10_f0, z10_f1, z10_f2, z10_f3, z10_f4, z10_f5, z10_f6, \
715 
                  z10_f7, z10_f8, z10_f9, z10_f10, z10_f11, z10_f12" "z10_cpu")
716 
(define_reservation "z10_FP_PP" "z10_f0, z10_f1, z10_f2, z10_f3, z10_f4, \
717 
                  z10_f5, z10_f6, z10_f7, z10_f8, z10_f9, z10_f10, z10_f11, \
718 
                  z10_f12")
719 
 
720 
; Declaration for FXU stages.
721 
(define_cpu_unit "z10_S1, z10_S2, z10_S3, z10_S4, z10_S5, z10_S6"  "z10_cpu")
722 
(define_cpu_unit "z10_T1, z10_T2, z10_T3, z10_T4, z10_T5, z10_T6"  "z10_cpu")
723 
(define_reservation "z10_INT_PP" "z10_S1 | z10_T1, z10_S2 | z10_T2, z10_S3 \
724 
                                  | z10_T3, z10_S4 | z10_T4, z10_S5 | \
725 
                                  z10_T5, z10_S6 | z10_T6")
726 
 
727 
; Declaration for DFU stages.
728 
(define_cpu_unit "z10_d0, z10_d1, z10_d2, z10_d3, z10_d4, z10_d5, z10_d6"
729 
                 "z10_cpu")
730 
(define_reservation "z10_DFU_PP" "z10_d0, z10_d1, z10_d2, z10_d3, z10_d4, \
731 
                                 z10_d5, z10_d6")
732 
 
733 
 
734 
; Pseudo-units representing whether the respective unit is available
735 
; in the sense that using it does not cause a dispatch delay.
736 
 
737 
(define_cpu_unit "z10_S_avail, z10_T_avail, z10_FP_avail, z10_DFU_avail"
738 
                 "z10_cpu")
739 
 
740 
(absence_set "z10_FP_avail"
741 
             "z10_S1, z10_S2, z10_S3, z10_S4, z10_S5, z10_S6, z10_T1, z10_T2, z10_T3, z10_T4, \
742 
              z10_T5, z10_T6, \
743 
              z10_d0, z10_d1, z10_d2, z10_d3, z10_d4, z10_d5, z10_d6")
744 
 
745 
(absence_set "z10_S_avail,z10_T_avail"
746 
             "z10_f0, z10_f1, z10_f2, z10_f3, z10_f4, z10_f5, z10_f6, z10_f7, \
747 
              z10_f8, z10_f9, z10_f10, z10_f11, z10_f12, \
748 
              z10_d0, z10_d1, z10_d2, z10_d3, z10_d4, z10_d5, z10_d6")
749 
 
750 
(absence_set "z10_DFU_avail"
751 
             "z10_S1, z10_S2, z10_S3, z10_S4, z10_S5, z10_S6, z10_T1, z10_T2, z10_T3, z10_T4, \
752 
              z10_T5, z10_T6, \
753 
              z10_f0, z10_f1, z10_f2, z10_f3, z10_f4, z10_f5, z10_f6, z10_f7, \
754 
              z10_f8, z10_f9, z10_f10, z10_f11, z10_f12")
755 
 
756 
 
757 
; Pseudo-units to be used in insn_reservations.
758 
 
759 
(define_reservation "z10_Gate_ANY" "((z10_S_avail | z10_T_avail), z10_INT_PP)")
760 
(define_reservation "z10_Gate_BOTH" "((z10_S_avail + z10_T_avail), z10_INT_PP)")
761 
 
762 
(define_reservation "z10_Gate_FP" "z10_FP_avail, z10_FP_PP")
763 
 
764 
(define_reservation "z10_Gate_DFU" "z10_DFU_avail, z10_DFU_PP")

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