1 ;; Scheduling description for z10 (cpu 2097).
2 ;; Copyright (C) 2008 Free Software Foundation, Inc.
3 ;; Contributed by Wolfgang Gellerich (gellerich@de.ibm.com).
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
16 ;; Automaton and components.
18 (define_automaton "z10_cpu")
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)")
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.
29 (define_cpu_unit "z10_branch_ANY" "z10_cpu")
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")
37 ; Z10 operand and result forwarding.
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.
48 ; Forwarding from z10_fwd and z10_fr to z10_super.
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, \
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"
64 ; Forwarding from z10_super to frz10_ and z10_rec.
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, \
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"
76 ; Forwarding from z10_fwd and z10_fr to z10_rec and z10_fr.
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, \
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, \
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"
97 ; Here is the cycle diagram for FXU-executed instructions:
98 ; ... A1 A2 A3 E1 P1 P2 P3 R0 ...
100 ; | | updated GPR is available
102 ; instruction reads GPR during this cycle
105 ; Variants of z10_int follow.
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
189 ; END of z10_int variants
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")
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")
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")
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")
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")
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")
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")
238 ; larl-type instructions
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
362 ; Subsets of z10_other follow.
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
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")
441 ; END of z10_other subsets.
445 ; Floating point insns
448 ; Z10 executes the following integer operations in the BFU pipeline.
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")
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")
462 ; BFP multiplication and general instructions
464 (define_insn_reservation "z10_fsimpdf" 6
465 (and (eq_attr "cpu" "z10")
466 (eq_attr "type" "fsimpdf,fmuldf"))
467 "z10_e1_BOTH, z10_Gate_FP")
469 ; LOAD ZERO produces a hex value but we need bin. Using the stage 7
470 ; bypass causes an exception for format conversion which is very
471 ; expensive. So, make sure subsequent instructions only get the zero
473 (define_insn_reservation "z10_fhex" 12
474 (and (eq_attr "cpu" "z10")
475 (eq_attr "type" "fhex"))
476 "z10_e1_BOTH, z10_Gate_FP")
478 (define_insn_reservation "z10_fsimpsf" 6
479 (and (eq_attr "cpu" "z10")
480 (eq_attr "type" "fsimpsf,fmulsf"))
481 "z10_e1_BOTH, z10_Gate_FP")
483 (define_insn_reservation "z10_fmultf" 52
484 (and (eq_attr "cpu" "z10")
485 (eq_attr "type" "fmultf"))
486 "z10_e1_BOTH*4, z10_Gate_FP")
488 (define_insn_reservation "z10_fsimptf" 14
489 (and (eq_attr "cpu" "z10")
490 (eq_attr "type" "fsimptf"))
491 "z10_e1_BOTH*2, z10_Gate_FP")
496 (define_insn_reservation "z10_fdivtf" 113
497 (and (eq_attr "cpu" "z10")
498 (eq_attr "type" "fdivtf"))
499 "z10_e1_T*4, z10_Gate_FP")
501 (define_insn_reservation "z10_fdivdf" 41
502 (and (eq_attr "cpu" "z10")
503 (eq_attr "type" "fdivdf"))
504 "z10_e1_T*4, z10_Gate_FP")
506 (define_insn_reservation "z10_fdivsf" 34
507 (and (eq_attr "cpu" "z10")
508 (eq_attr "type" "fdivsf"))
509 "z10_e1_T*4, z10_Gate_FP")
514 (define_insn_reservation "z10_fsqrtsf" 41
515 (and (eq_attr "cpu" "z10")
516 (eq_attr "type" "fsqrtsf"))
517 "z10_e1_T*4, z10_Gate_FP")
519 (define_insn_reservation "z10_fsqrtdf" 54
520 (and (eq_attr "cpu" "z10")
521 (eq_attr "type" "fsqrtdf"))
522 "z10_e1_T*4, z10_Gate_FP")
524 (define_insn_reservation "z10_fsqrtf" 122
525 (and (eq_attr "cpu" "z10")
526 (eq_attr "type" "fsqrttf"))
527 "z10_e1_T*4, z10_Gate_FP")
532 (define_insn_reservation "z10_floadtf" 12
533 (and (eq_attr "cpu" "z10")
534 (eq_attr "type" "floadtf"))
535 "z10_e1_T, z10_Gate_FP")
537 (define_insn_reservation "z10_floaddf" 1
538 (and (eq_attr "cpu" "z10")
539 (eq_attr "type" "floaddf"))
540 "z10_e1_T, z10_Gate_FP")
542 (define_insn_reservation "z10_floadsf" 1
543 (and (eq_attr "cpu" "z10")
544 (eq_attr "type" "floadsf"))
545 "z10_e1_T, z10_Gate_FP")
547 (define_insn_reservation "z10_fstoredf" 12
548 (and (eq_attr "cpu" "z10")
549 (eq_attr "type" "fstoredf,fstoredd"))
550 "z10_e1_T, z10_Gate_FP")
552 (define_insn_reservation "z10_fstoresf" 12
553 (and (eq_attr "cpu" "z10")
554 (eq_attr "type" "fstoresf,fstoresd"))
555 "z10_e1_T, z10_Gate_FP")
559 (define_insn_reservation "z10_ftrunctf" 16
560 (and (eq_attr "cpu" "z10")
561 (eq_attr "type" "ftrunctf"))
562 "z10_e1_T, z10_Gate_FP")
564 (define_insn_reservation "z10_ftruncdf" 12
565 (and (eq_attr "cpu" "z10")
566 (eq_attr "type" "ftruncdf"))
567 "z10_e1_T, z10_Gate_FP")
570 ; Conversion between BFP and int.
571 (define_insn_reservation "z10_ftoi" 13
572 (and (eq_attr "cpu" "z10")
573 (eq_attr "type" "ftoi"))
574 "z10_e1_T, z10_Gate_FP")
576 (define_insn_reservation "z10_itoftf" 14
577 (and (eq_attr "cpu" "z10")
578 (eq_attr "type" "itoftf"))
579 "z10_e1_T*2, z10_Gate_FP")
581 (define_insn_reservation "z10_itofsfdf" 12
582 (and (eq_attr "cpu" "z10")
583 (eq_attr "type" "itofdf,itofsf"))
584 "z10_e1_T, z10_Gate_FP")
588 ; BFP-related bypasses. There is no bypass for extended mode.
589 (define_bypass 1 "z10_fsimpdf" "z10_fstoredf")
590 (define_bypass 1 "z10_fsimpsf" "z10_fstoresf")
591 (define_bypass 1 "z10_floaddf" "z10_fsimpdf, z10_fstoredf")
592 (define_bypass 1 "z10_floadsf" "z10_fsimpsf, z10_fstoresf")
596 ; insn_reservations for DFP instructions.
599 ; Exact number of cycles is not known at compile-time.
600 (define_insn_reservation "z10_fdivddtd" 40
601 (and (eq_attr "cpu" "z10")
602 (eq_attr "type" "fdivdd,fdivtd"))
603 "z10_e1_BOTH,z10_Gate_DFU")
605 (define_insn_reservation "z10_ftruncsd" 38
606 (and (eq_attr "cpu" "z10")
607 (eq_attr "type" "ftruncsd"))
608 "z10_e1_BOTH*4,z10_Gate_DFU")
610 (define_insn_reservation "z10_ftruncdd" 340
611 (and (eq_attr "cpu" "z10")
612 (eq_attr "type" "ftruncsd"))
613 "z10_e1_BOTH*4,z10_Gate_DFU")
615 (define_insn_reservation "z10_floaddd" 12
616 (and (eq_attr "cpu" "z10")
617 (eq_attr "type" "floaddd"))
618 "z10_e1_BOTH,z10_Gate_DFU")
620 (define_insn_reservation "z10_floadsd" 12
621 (and (eq_attr "cpu" "z10")
622 (eq_attr "type" "floadsd"))
623 "z10_e1_BOTH,z10_Gate_DFU")
625 ; Exact number of cycles is not known at compile-time.
626 (define_insn_reservation "z10_fmulddtd" 35
627 (and (eq_attr "cpu" "z10")
628 (eq_attr "type" "fmuldd,fmultd"))
629 "z10_e1_BOTH,z10_Gate_DFU")
631 (define_insn_reservation "z10_fsimpdd" 17
632 (and (eq_attr "cpu" "z10")
633 (eq_attr "type" "fsimpdd"))
634 "z10_e1_BOTH,z10_Gate_DFU")
636 (define_insn_reservation "z10_fsimpsd" 17
637 (and (eq_attr "cpu" "z10")
638 (eq_attr "type" "fsimpsd"))
639 "z10_e1_BOTH,z10_Gate_DFU")
641 (define_insn_reservation "z10_fsimptd" 18
642 (and (eq_attr "cpu" "z10")
643 (eq_attr "type" "fsimptd"))
644 "z10_e1_BOTH,z10_Gate_DFU")
646 (define_insn_reservation "z10_itofdd" 36
647 (and (eq_attr "cpu" "z10")
648 (eq_attr "type" "itofdd"))
649 "z10_e1_BOTH*3,z10_Gate_DFU")
651 (define_insn_reservation "z10_itoftd" 49
652 (and (eq_attr "cpu" "z10")
653 (eq_attr "type" "itoftd"))
654 "z10_e1_BOTH*3,z10_Gate_DFU")
656 ; Exact number of cycles is not known at compile-time.
657 (define_insn_reservation "z10_ftoidfp" 30
658 (and (eq_attr "cpu" "z10")
659 (eq_attr "type" "ftoidfp"))
660 "z10_e1_BOTH*3,z10_Gate_DFU")
664 ; Address-related bypasses
667 ; Here is the cycle diagram for address-related bypasses:
668 ; ... G1 G2 G3 A0 A1 A2 A3 E1 P1 P2 P3 R0 ...
670 ; | | | | | without bypass, its available AFTER this cycle
671 ; | | | | E1-type bypasses provide the new value AFTER this cycle
672 ; | | | A3-type bypasses provide the new value AFTER this cycle
673 ; | | A1-type bypasses provide the new value AFTER this cycle
674 ; | AGI resolution, actual USE of new value is DURING this cycle
677 (define_bypass 3 "z10_larl_A1, z10_la_fwd_A1, z10_other_fwd_A1, \
679 "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
681 z10_cs, z10_stm, z10_other"
684 (define_bypass 5 "z10_larl_fwd_A3, z10_load_fwd_A3, z10_other_fwd_A3, \
685 z10_other_fr_A3, z10_int_fwd_A3, z10_int_fr_A3"
686 "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
688 z10_cs, z10_stm, z10_other"
691 (define_bypass 6 "z10_other_fr_E1, z10_other_super_c_E1, z10_other_super_E1, \
693 z10_lr_fr_E1, z10_larl_super_E1, \
694 z10_int_super_E1, z10_int_fwd_E1, z10_int_fr_E1"
695 "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
697 z10_cs, z10_stm, z10_other"
700 (define_bypass 9 "z10_int_super, z10_int_fwd, z10_int_fr"
701 "z10_agen, z10_la, z10_branch, z10_call, z10_load, \
703 z10_cs, z10_stm, z10_other"
709 ; Try to avoid transitions between DFU-, BFU- and FXU-executed instructions as there is a
710 ; dispatch delay required.
714 ; Declaration for some pseudo-pipeline stages that reflect the
715 ; dispatch gap when issueing an INT/FXU/BFU-executed instruction after
716 ; an instruction executed by a different unit has been executed. The
717 ; approach is that we pretend a pipelined execution of BFU operations
718 ; with as many stages as the gap is long and request that none of
719 ; these stages is busy when issueing a FXU- or DFU-executed
720 ; instruction. Similar for FXU- and DFU-executed instructions.
722 ; Declaration for FPU stages.
723 (define_cpu_unit "z10_f0, z10_f1, z10_f2, z10_f3, z10_f4, z10_f5, z10_f6, \
724 z10_f7, z10_f8, z10_f9, z10_f10, z10_f11, z10_f12" "z10_cpu")
725 (define_reservation "z10_FP_PP" "z10_f0, z10_f1, z10_f2, z10_f3, z10_f4, \
726 z10_f5, z10_f6, z10_f7, z10_f8, z10_f9, z10_f10, z10_f11, \
729 ; Declaration for FXU stages.
730 (define_cpu_unit "z10_S1, z10_S2, z10_S3, z10_S4, z10_S5, z10_S6" "z10_cpu")
731 (define_cpu_unit "z10_T1, z10_T2, z10_T3, z10_T4, z10_T5, z10_T6" "z10_cpu")
732 (define_reservation "z10_INT_PP" "z10_S1 | z10_T1, z10_S2 | z10_T2, z10_S3 \
733 | z10_T3, z10_S4 | z10_T4, z10_S5 | \
734 z10_T5, z10_S6 | z10_T6")
736 ; Declaration for DFU stages.
737 (define_cpu_unit "z10_d0, z10_d1, z10_d2, z10_d3, z10_d4, z10_d5, z10_d6"
739 (define_reservation "z10_DFU_PP" "z10_d0, z10_d1, z10_d2, z10_d3, z10_d4, \
743 ; Pseudo-units representing whether the respective unit is available
744 ; in the sense that using it does not cause a dispatch delay.
746 (define_cpu_unit "z10_S_avail, z10_T_avail, z10_FP_avail, z10_DFU_avail"
749 (absence_set "z10_FP_avail"
750 "z10_S1, z10_S2, z10_S3, z10_S4, z10_S5, z10_S6, z10_T1, z10_T2, z10_T3, z10_T4, \
752 z10_d0, z10_d1, z10_d2, z10_d3, z10_d4, z10_d5, z10_d6")
754 (absence_set "z10_S_avail,z10_T_avail"
755 "z10_f0, z10_f1, z10_f2, z10_f3, z10_f4, z10_f5, z10_f6, z10_f7, \
756 z10_f8, z10_f9, z10_f10, z10_f11, z10_f12, \
757 z10_d0, z10_d1, z10_d2, z10_d3, z10_d4, z10_d5, z10_d6")
759 (absence_set "z10_DFU_avail"
760 "z10_S1, z10_S2, z10_S3, z10_S4, z10_S5, z10_S6, z10_T1, z10_T2, z10_T3, z10_T4, \
762 z10_f0, z10_f1, z10_f2, z10_f3, z10_f4, z10_f5, z10_f6, z10_f7, \
763 z10_f8, z10_f9, z10_f10, z10_f11, z10_f12")
766 ; Pseudo-units to be used in insn_reservations.
768 (define_reservation "z10_Gate_ANY" "((z10_S_avail | z10_T_avail), z10_INT_PP)")
769 (define_reservation "z10_Gate_BOTH" "((z10_S_avail + z10_T_avail), z10_INT_PP)")
771 (define_reservation "z10_Gate_FP" "z10_FP_avail, z10_FP_PP")
773 (define_reservation "z10_Gate_DFU" "z10_DFU_avail, z10_DFU_PP")