1 ;; DFA-based pipeline descriptions for MIPS Technologies 24K core.
2 ;; Contributed by Chao-ying Fu (fu@mips.com), Nigel Stephens (nigel@mips.com)
3 ;; and David Ung (davidu@mips.com)
5 ;; The 24kf2_1 is a single-issue processor with a half-clocked fpu.
6 ;; The 24kf1_1 is 24k with 1:1 clocked fpu.
9 ;; "MIPS32 24K Processor Core Family Software User's Manual, Rev 3.04."
11 ;; Copyright (C) 2005-2018 Free Software Foundation, Inc.
13 ;; This file is part of GCC.
15 ;; GCC is free software; you can redistribute it and/or modify it
16 ;; under the terms of the GNU General Public License as published
17 ;; by the Free Software Foundation; either version 3, or (at your
18 ;; option) any later version.
20 ;; GCC is distributed in the hope that it will be useful, but WITHOUT
21 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
22 ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
23 ;; License for more details.
25 ;; You should have received a copy of the GNU General Public License
26 ;; along with GCC; see the file COPYING3. If not see
27 ;; <http://www.gnu.org/licenses/>.
29 (define_automaton "r24k_cpu, r24k_mdu, r24k_fpu")
31 ;; Integer execution unit.
32 (define_cpu_unit "r24k_iss" "r24k_cpu")
33 (define_cpu_unit "r24k_ixu_arith" "r24k_cpu")
34 (define_cpu_unit "r24k_mul3a" "r24k_mdu")
35 (define_cpu_unit "r24k_mul3b" "r24k_mdu")
36 (define_cpu_unit "r24k_mul3c" "r24k_mdu")
38 ;; --------------------------------------------------------------
40 ;; --------------------------------------------------------------
42 ;; 1. Loads: lb, lbu, lh, lhu, ll, lw, lwl, lwr, lwpc, lwxs
43 (define_insn_reservation "r24k_int_load" 2
44 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
45 (eq_attr "type" "load"))
46 "r24k_iss+r24k_ixu_arith")
49 ;; 2. Arithmetic: add, addi, addiu, addiupc, addu, and, andi, clo, clz,
50 ;; ext, ins, lui, movn, movz, nor, or, ori, rotr, rotrv, seb, seh, sll,
51 ;; sllv, slt, slti, sltiu, sltu, sra, srav, srl, srlv, sub, subu, wsbh,
53 ;; (movn/movz is not matched, we'll need to split condmov to
54 ;; differentiate between integer/float moves)
55 (define_insn_reservation "r24k_int_arith" 1
56 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
57 (eq_attr "type" "arith,const,logical,move,nop,shift,signext,slt"))
58 "r24k_iss+r24k_ixu_arith")
61 ;; 3. Links: bgezal, bgezall, bltzal, bltzall, jal, jalr, jalx
62 ;; 3a. jr/jalr consumer
63 (define_insn_reservation "r24k_int_jump" 1
64 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
65 (eq_attr "type" "call,jump"))
66 "r24k_iss+r24k_ixu_arith")
68 ;; 3b. branch consumer
69 (define_insn_reservation "r24k_int_branch" 1
70 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
71 (eq_attr "type" "branch"))
72 "r24k_iss+r24k_ixu_arith")
75 ;; 4. MDU: fully pipelined multiplier
76 ;; mult - delivers result to hi/lo in 1 cycle (pipelined)
77 (define_insn_reservation "r24k_int_mult" 1
78 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
79 (eq_attr "type" "imul"))
80 "r24k_iss+(r24k_mul3a|r24k_mul3b|r24k_mul3c)")
82 ;; madd, msub - delivers result to hi/lo in 1 cycle (pipelined)
83 (define_insn_reservation "r24k_int_madd" 1
84 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
85 (eq_attr "type" "imadd"))
86 "r24k_iss+(r24k_mul3a|r24k_mul3b|r24k_mul3c)")
88 ;; mul - delivers result to gpr in 5 cycles
89 (define_insn_reservation "r24k_int_mul3" 5
90 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
91 (eq_attr "type" "imul3"))
92 "r24k_iss+(r24k_mul3a|r24k_mul3b|r24k_mul3c)*5")
94 ;; mfhi, mflo, mflhxu - deliver result to gpr in 5 cycles
95 (define_insn_reservation "r24k_int_mfhilo" 5
96 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
97 (eq_attr "type" "mfhi,mflo"))
98 "r24k_iss+(r24k_mul3a|r24k_mul3b|r24k_mul3c)")
100 ;; mthi, mtlo, mtlhx - deliver result to hi/lo, thence madd, handled as bypass
101 (define_insn_reservation "r24k_int_mthilo" 1
102 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
103 (eq_attr "type" "mthi,mtlo"))
104 "r24k_iss+(r24k_mul3a|r24k_mul3b|r24k_mul3c)")
106 ;; div - default to 36 cycles for 32bit operands. Faster for 24bit, 16bit and
107 ;; 8bit, but is tricky to identify.
108 (define_insn_reservation "r24k_int_div" 36
109 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
110 (eq_attr "type" "idiv"))
111 "r24k_iss+(r24k_mul3a+r24k_mul3b+r24k_mul3c)*36")
114 ;; 5. Cop: cfc1, di, ei, mfc0, mtc0
115 ;; (Disabled until we add proper cop0 support)
116 ;;(define_insn_reservation "r24k_int_cop" 3
117 ;; (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
118 ;; (eq_attr "type" "cop0"))
119 ;; "r24k_iss+r24k_ixu_arith")
123 (define_insn_reservation "r24k_int_store" 1
124 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
125 (eq_attr "type" "store"))
126 "r24k_iss+r24k_ixu_arith")
129 ;; 7. Multiple instructions
130 (define_insn_reservation "r24k_int_multi" 1
131 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
132 (eq_attr "type" "multi"))
133 "r24k_iss+r24k_ixu_arith+r24k_fpu_arith+(r24k_mul3a+r24k_mul3b+r24k_mul3c)")
136 ;; 8. Unknowns - Currently these include blockage, consttable and alignment
137 ;; rtls. They do not really affect scheduling latency, (blockage affects
138 ;; scheduling via log links, but not used here).
139 (define_insn_reservation "r24k_int_unknown" 0
140 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
141 (eq_attr "type" "unknown,atomic,syncloop"))
146 (define_insn_reservation "r24k_int_prefetch" 1
147 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
148 (eq_attr "type" "prefetch,prefetchx"))
149 "r24k_iss+r24k_ixu_arith")
152 ;; --------------------------------------------------------------
153 ;; Bypass to Consumer
154 ;; --------------------------------------------------------------
156 ;; load->next use : 2 cycles (Default)
157 ;; load->load base: 3 cycles
158 ;; load->store base: 3 cycles
159 ;; load->prefetch: 3 cycles
160 (define_bypass 3 "r24k_int_load" "r24k_int_load")
161 (define_bypass 3 "r24k_int_load" "r24k_int_store" "!mips_store_data_bypass_p")
162 (define_bypass 3 "r24k_int_load" "r24k_int_prefetch")
164 ;; arith->next use : 1 cycles (Default)
165 ;; arith->load base: 2 cycles
166 ;; arith->store base: 2 cycles
167 ;; arith->prefetch: 2 cycles
168 (define_bypass 2 "r24k_int_arith" "r24k_int_load")
169 (define_bypass 2 "r24k_int_arith" "r24k_int_store" "!mips_store_data_bypass_p")
170 (define_bypass 2 "r24k_int_arith" "r24k_int_prefetch")
172 ;; mul3->next use : 5 cycles (default)
173 ;; mul3->l/s base : 6 cycles
174 ;; mul3->prefetch : 6 cycles
175 (define_bypass 6 "r24k_int_mul3" "r24k_int_load")
176 (define_bypass 6 "r24k_int_mul3" "r24k_int_store" "!mips_store_data_bypass_p")
177 (define_bypass 6 "r24k_int_mul3" "r24k_int_prefetch")
179 ;; mul3->madd/msub : 1 cycle
180 (define_bypass 1 "r24k_int_mul3" "r24k_int_madd" "mips_linked_madd_p")
182 ;; mfhilo->next use : 5 cycles (default)
183 ;; mfhilo->l/s base : 6 cycles
184 ;; mfhilo->prefetch : 6 cycles
185 ;; mthilo->madd/msub : 2 cycle (only for mthi/lo not mfhi/lo)
186 (define_bypass 6 "r24k_int_mfhilo" "r24k_int_load")
187 (define_bypass 6 "r24k_int_mfhilo" "r24k_int_store"
188 "!mips_store_data_bypass_p")
189 (define_bypass 6 "r24k_int_mfhilo" "r24k_int_prefetch")
190 (define_bypass 2 "r24k_int_mthilo" "r24k_int_madd")
192 ;; cop->next use : 3 cycles (Default)
193 ;; cop->l/s base : 4 cycles
194 ;; (define_bypass 4 "r24k_int_cop" "r24k_int_load")
195 ;; (define_bypass 4 "r24k_int_cop" "r24k_int_store"
196 ;; "!mips_store_data_bypass_p")
198 ;; multi->next use : 1 cycles (Default)
199 ;; multi->l/s base : 2 cycles
200 ;; multi->prefetch : 2 cycles
201 (define_bypass 2 "r24k_int_multi" "r24k_int_load")
202 (define_bypass 2 "r24k_int_multi" "r24k_int_store" "!mips_store_data_bypass_p")
203 (define_bypass 2 "r24k_int_multi" "r24k_int_prefetch")
206 ;; --------------------------------------------------------------
208 ;; --------------------------------------------------------------
210 ;; absq, addq, addsc, addu, addwc, bitrev, cmp, cmpgu, cmpu, insv, modsub,
211 ;; packrl, pick, preceq, preceu, precequ, precrq, precrqu, raddu, rddsp, repl,
212 ;; replv, shll, shllv, shra, shrav, shrl, shrlv, subq, subu, wrdsp
213 (define_insn_reservation "r24k_dsp_alu" 2
214 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
215 (eq_attr "type" "dspalu,dspalusat"))
216 "r24k_iss+r24k_ixu_arith")
218 ;; dpaq_s, dpau, dpsq_s, dpsu, maq_s, mulsaq
219 (define_insn_reservation "r24k_dsp_mac" 1
220 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
221 (eq_attr "type" "dspmac"))
222 "r24k_iss+(r24k_mul3a|r24k_mul3b|r24k_mul3c)")
224 ;; dpaq_sa, dpsq_sa, maq_sa
225 (define_insn_reservation "r24k_dsp_mac_sat" 1
226 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
227 (eq_attr "type" "dspmacsat"))
228 "r24k_iss+(r24k_mul3a|r24k_mul3b|r24k_mul3c)")
230 ;; extp, extpdp, extpdpv, extpv, extr, extrv
231 (define_insn_reservation "r24k_dsp_acc_ext" 5
232 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
233 (eq_attr "type" "accext"))
234 "r24k_iss+(r24k_mul3a|r24k_mul3b|r24k_mul3c)")
236 ;; mthlip, shilo, shilov
237 (define_insn_reservation "r24k_dsp_acc_mod" 1
238 (and (eq_attr "cpu" "24kc,24kf2_1,24kf1_1")
239 (eq_attr "type" "accmod"))
240 "r24k_iss+(r24k_mul3a|r24k_mul3b|r24k_mul3c)")
243 ;; mult/madd->dsp_acc_ext : 4 cycles
244 ;; mult/madd->dsp_acc_mod : 4 cycles
245 (define_bypass 4 "r24k_int_mult" "r24k_dsp_acc_ext")
246 (define_bypass 4 "r24k_int_mult" "r24k_dsp_acc_mod")
248 ;; mthilo->dsp_acc_ext : 4 cycles
249 ;; mthilo->dsp_acc_ext : 4 cycles
250 (define_bypass 4 "r24k_int_mthilo" "r24k_dsp_acc_ext")
251 (define_bypass 4 "r24k_int_mthilo" "r24k_dsp_acc_mod")
253 ;; dsp_mac->next use : 1 cycles (default)
254 ;; dsp_mac->dsp_acc_ext : 4 cycles
255 ;; dsp_mac->dsp_acc_mod : 4 cycles
256 (define_bypass 4 "r24k_dsp_mac" "r24k_dsp_acc_ext")
257 (define_bypass 4 "r24k_dsp_mac" "r24k_dsp_acc_mod")
259 ;; dsp_mac_sat->next use : 1 cycles (default)
260 ;; dsp_mac_sat->mult/madd : 2 cycles
261 ;; dsp_mac_sat->dsp_mac : 2 cycles
262 ;; dsp_mac_sat->dsp_mac_sat : 2 cycles
263 ;; dsp_mac_sat->dsp_acc_ext : 4 cycles
264 ;; dsp_mac_sat->dsp_acc_mod : 4 cycles
265 (define_bypass 2 "r24k_dsp_mac_sat" "r24k_int_mult")
266 (define_bypass 2 "r24k_dsp_mac_sat" "r24k_dsp_mac")
267 (define_bypass 2 "r24k_dsp_mac_sat" "r24k_dsp_mac_sat")
268 (define_bypass 4 "r24k_dsp_mac_sat" "r24k_dsp_acc_ext")
269 (define_bypass 4 "r24k_dsp_mac_sat" "r24k_dsp_acc_mod")
271 ;; dsp_acc_ext->next use : 5 cycles (default)
272 ;; dsp_acc_ext->l/s base : 6 cycles
273 ;; dsp_acc_ext->prefetch : 6 cycles
274 (define_bypass 6 "r24k_dsp_acc_ext" "r24k_int_load")
275 (define_bypass 6 "r24k_dsp_acc_ext" "r24k_int_store"
276 "!mips_store_data_bypass_p")
277 (define_bypass 6 "r24k_dsp_acc_ext" "r24k_int_prefetch")
279 ;; dsp_acc_mod->next use : 1 cycles (default)
280 ;; dsp_acc_mod->mult/madd : 2 cycles
281 ;; dsp_acc_mod->dsp_mac : 2 cycles
282 ;; dsp_acc_mod->dsp_mac_sat : 2 cycles
283 ;; dsp_acc_mod->dsp_acc_ext : 4 cycles
284 ;; dsp_acc_mod->dsp_acc_mod : 4 cycles
285 (define_bypass 2 "r24k_dsp_acc_mod" "r24k_int_mult")
286 (define_bypass 2 "r24k_dsp_acc_mod" "r24k_dsp_mac")
287 (define_bypass 2 "r24k_dsp_acc_mod" "r24k_dsp_mac_sat")
288 (define_bypass 4 "r24k_dsp_acc_mod" "r24k_dsp_acc_ext")
289 (define_bypass 4 "r24k_dsp_acc_mod" "r24k_dsp_acc_mod")
291 ;; dspalu->next use : 2 cycles (default)
292 ;; dspalu->l/s base : 3 cycles
293 ;; dspalu->prefetch : 3 cycles
294 ;; some pairs of dspalu (addsc/addwc, cmp/pick, wrdsp/insv) : 1 cycle
295 (define_bypass 3 "r24k_dsp_alu" "r24k_int_load")
296 (define_bypass 3 "r24k_dsp_alu" "r24k_int_store" "!mips_store_data_bypass_p")
297 (define_bypass 3 "r24k_dsp_alu" "r24k_int_prefetch")
298 (define_bypass 1 "r24k_dsp_alu" "r24k_dsp_alu" "mips_dspalu_bypass_p")
301 ;; --------------------------------------------------------------
302 ;; Floating Point Instructions
303 ;; --------------------------------------------------------------
305 (define_cpu_unit "r24k_fpu_arith" "r24k_fpu")
307 ;; The 24k is a single issue cpu, and the fpu runs at half clock speed,
308 ;; so each fpu instruction ties up the shared instruction scheduler for
309 ;; 1 cycle, and the fpu scheduler for 2 cycles.
311 ;; These timings are therefore twice the values in the 24K manual,
312 ;; which are quoted in fpu clocks.
314 ;; The 24kf1_1 is a 24k configured with 1:1 cpu and fpu, so use
315 ;; the unscaled timings
317 (define_reservation "r24kf2_1_fpu_iss" "r24k_iss+(r24k_fpu_arith*2)")
320 (define_insn_reservation "r24kf2_1_fadd" 8
321 (and (eq_attr "cpu" "24kf2_1")
322 (eq_attr "type" "fadd,fabs,fneg"))
326 (define_insn_reservation "r24kf2_1_fmove" 8
327 (and (eq_attr "cpu" "24kf2_1")
328 (eq_attr "type" "fmove,condmove"))
332 (define_insn_reservation "r24kf2_1_fload" 6
333 (and (eq_attr "cpu" "24kf2_1")
334 (eq_attr "type" "fpload,fpidxload"))
338 (define_insn_reservation "r24kf2_1_fstore" 2
339 (and (eq_attr "cpu" "24kf2_1")
340 (eq_attr "type" "fpstore"))
344 (define_insn_reservation "r24kf2_1_fmul_sf" 8
345 (and (eq_attr "cpu" "24kf2_1")
346 (and (eq_attr "type" "fmul,fmadd")
347 (eq_attr "mode" "SF")))
350 (define_insn_reservation "r24kf2_1_fmul_df" 10
351 (and (eq_attr "cpu" "24kf2_1")
352 (and (eq_attr "type" "fmul,fmadd")
353 (eq_attr "mode" "DF")))
354 "r24kf2_1_fpu_iss,(r24k_fpu_arith*2)")
357 ;; fdiv, fsqrt, frsqrt
358 (define_insn_reservation "r24kf2_1_fdiv_sf" 34
359 (and (eq_attr "cpu" "24kf2_1")
360 (and (eq_attr "type" "fdiv,fsqrt,frsqrt")
361 (eq_attr "mode" "SF")))
362 "r24kf2_1_fpu_iss,(r24k_fpu_arith*26)")
364 (define_insn_reservation "r24kf2_1_fdiv_df" 64
365 (and (eq_attr "cpu" "24kf2_1")
366 (and (eq_attr "type" "fdiv,fsqrt")
367 (eq_attr "mode" "DF")))
368 "r24kf2_1_fpu_iss,(r24k_fpu_arith*56)")
371 (define_insn_reservation "r24kf2_1_frsqrt_df" 70
372 (and (eq_attr "cpu" "24kf2_1")
373 (and (eq_attr "type" "frsqrt")
374 (eq_attr "mode" "DF")))
375 "r24kf2_1_fpu_iss,(r24k_fpu_arith*60)")
378 (define_insn_reservation "r24kf2_1_fcmp" 4
379 (and (eq_attr "cpu" "24kf2_1")
380 (eq_attr "type" "fcmp"))
383 ;; fcmp -> movf.fmt & movt.fmt bypass (dependency must be on the condition)
384 (define_bypass 2 "r24kf2_1_fcmp" "r24kf2_1_fmove")
386 ;; fcvt (cvt.d.s, cvt.[sd].[wl])
387 (define_insn_reservation "r24kf2_1_fcvt_i2f_s2d" 8
388 (and (eq_attr "cpu" "24kf2_1")
389 (and (eq_attr "type" "fcvt")
390 (eq_attr "cnv_mode" "I2S,I2D,S2D")))
394 (define_insn_reservation "r24kf2_1_fcvt_s2d" 12
395 (and (eq_attr "cpu" "24kf2_1")
396 (and (eq_attr "type" "fcvt")
397 (eq_attr "cnv_mode" "D2S")))
400 ;; fcvt (cvt.[wl].[sd], etc)
401 (define_insn_reservation "r24kf2_1_fcvt_f2i" 10
402 (and (eq_attr "cpu" "24kf2_1")
403 (and (eq_attr "type" "fcvt")
404 (eq_attr "cnv_mode" "S2I,D2I")))
407 ;; fxfer (mfc1, mfhc1, mtc1, mthc1)
408 (define_insn_reservation "r24kf2_1_fxfer" 4
409 (and (eq_attr "cpu" "24kf2_1")
410 (eq_attr "type" "mfc,mtc"))
413 ;; --------------------------------------------------------------
414 ;; Bypass to Consumer
415 ;; --------------------------------------------------------------
416 ;; r24kf2_1_fcvt_f2i->l/s base : 11 cycles
417 ;; r24kf2_1_fcvt_f2i->prefetch : 11 cycles
418 (define_bypass 11 "r24kf2_1_fcvt_f2i" "r24k_int_load")
419 (define_bypass 11 "r24kf2_1_fcvt_f2i" "r24k_int_store"
420 "!mips_store_data_bypass_p")
421 (define_bypass 11 "r24kf2_1_fcvt_f2i" "r24k_int_prefetch")
423 ;; r24kf2_1_fxfer->l/s base : 5 cycles
424 ;; r24kf2_1_fxfer->prefetch : 5 cycles
425 (define_bypass 5 "r24kf2_1_fxfer" "r24k_int_load")
426 (define_bypass 5 "r24kf2_1_fxfer" "r24k_int_store" "!mips_store_data_bypass_p")
427 (define_bypass 5 "r24kf2_1_fxfer" "r24k_int_prefetch")
429 ;; --------------------------------------------------------------
430 ;; The 24kf1_1 is a 24k configured with 1:1 cpu and fpu, so use
431 ;; the unscaled timings
432 ;; --------------------------------------------------------------
434 (define_reservation "r24kf1_1_fpu_iss" "r24k_iss+r24k_fpu_arith")
437 (define_insn_reservation "r24kf1_1_fadd" 4
438 (and (eq_attr "cpu" "24kf1_1")
439 (eq_attr "type" "fadd,fabs,fneg"))
443 (define_insn_reservation "r24kf1_1_fmove" 4
444 (and (eq_attr "cpu" "24kf1_1")
445 (eq_attr "type" "fmove,condmove"))
449 (define_insn_reservation "r24kf1_1_fload" 3
450 (and (eq_attr "cpu" "24kf1_1")
451 (eq_attr "type" "fpload,fpidxload"))
455 (define_insn_reservation "r24kf1_1_fstore" 1
456 (and (eq_attr "cpu" "24kf1_1")
457 (eq_attr "type" "fpstore"))
461 (define_insn_reservation "r24kf1_1_fmul_sf" 4
462 (and (eq_attr "cpu" "24kf1_1")
463 (and (eq_attr "type" "fmul,fmadd")
464 (eq_attr "mode" "SF")))
467 (define_insn_reservation "r24kf1_1_fmul_df" 5
468 (and (eq_attr "cpu" "24kf1_1")
469 (and (eq_attr "type" "fmul,fmadd")
470 (eq_attr "mode" "DF")))
471 "r24kf1_1_fpu_iss,r24k_fpu_arith")
474 ;; fdiv, fsqrt, frsqrt
475 (define_insn_reservation "r24kf1_1_fdiv_sf" 17
476 (and (eq_attr "cpu" "24kf1_1")
477 (and (eq_attr "type" "fdiv,fsqrt,frsqrt")
478 (eq_attr "mode" "SF")))
479 "r24kf1_1_fpu_iss,(r24k_fpu_arith*13)")
481 (define_insn_reservation "r24kf1_1_fdiv_df" 32
482 (and (eq_attr "cpu" "24kf1_1")
483 (and (eq_attr "type" "fdiv,fsqrt")
484 (eq_attr "mode" "DF")))
485 "r24kf1_1_fpu_iss,(r24k_fpu_arith*28)")
488 (define_insn_reservation "r24kf1_1_frsqrt_df" 35
489 (and (eq_attr "cpu" "24kf1_1")
490 (and (eq_attr "type" "frsqrt")
491 (eq_attr "mode" "DF")))
492 "r24kf1_1_fpu_iss,(r24k_fpu_arith*30)")
495 (define_insn_reservation "r24kf1_1_fcmp" 2
496 (and (eq_attr "cpu" "24kf1_1")
497 (eq_attr "type" "fcmp"))
500 ;; fcmp -> movf.fmt & movt.fmt bypass (dependency must be on the condition)
501 (define_bypass 1 "r24kf1_1_fcmp" "r24kf1_1_fmove")
503 ;; fcvt (cvt.d.s, cvt.[sd].[wl])
504 (define_insn_reservation "r24kf1_1_fcvt_i2f_s2d" 4
505 (and (eq_attr "cpu" "24kf1_1")
506 (and (eq_attr "type" "fcvt")
507 (eq_attr "cnv_mode" "I2S,I2D,S2D")))
511 (define_insn_reservation "r24kf1_1_fcvt_s2d" 6
512 (and (eq_attr "cpu" "24kf1_1")
513 (and (eq_attr "type" "fcvt")
514 (eq_attr "cnv_mode" "D2S")))
517 ;; fcvt (cvt.[wl].[sd], etc)
518 (define_insn_reservation "r24kf1_1_fcvt_f2i" 5
519 (and (eq_attr "cpu" "24kf1_1")
520 (and (eq_attr "type" "fcvt")
521 (eq_attr "cnv_mode" "S2I,D2I")))
524 ;; fxfer (mfc1, mfhc1, mtc1, mthc1)
525 (define_insn_reservation "r24kf1_1_fxfer" 2
526 (and (eq_attr "cpu" "24kf1_1")
527 (eq_attr "type" "mfc,mtc"))
530 ;; --------------------------------------------------------------
531 ;; Bypass to Consumer
532 ;; --------------------------------------------------------------
533 ;; r24kf1_1_fcvt_f2i->l/s base : 6 cycles
534 ;; r24kf1_1_fcvt_f2i->prefetch : 6 cycles
535 (define_bypass 6 "r24kf1_1_fcvt_f2i" "r24k_int_load")
536 (define_bypass 6 "r24kf1_1_fcvt_f2i" "r24k_int_store"
537 "!mips_store_data_bypass_p")
538 (define_bypass 6 "r24kf1_1_fcvt_f2i" "r24k_int_prefetch")
540 ;; r24kf1_1_fxfer->l/s base : 3 cycles
541 ;; r24kf1_1_fxfer->prefetch : 3 cycles
542 (define_bypass 3 "r24kf1_1_fxfer" "r24k_int_load")
543 (define_bypass 3 "r24kf1_1_fxfer" "r24k_int_store" "!mips_store_data_bypass_p")
544 (define_bypass 3 "r24kf1_1_fxfer" "r24k_int_prefetch")