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;; Scheduling description for z990 (cpu 2084).

;;   Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2010

;;   Free Software Foundation, Inc.

;;   Contributed by Hartmut Penner (hpenner@de.ibm.com) and

;;                  Ulrich Weigand (uweigand@de.ibm.com).

;; This file is part of GCC.

;; GCC is free software; you can redistribute it and/or modify it under

;; the terms of the GNU General Public License as published by the Free

;; Software Foundation; either version 3, or (at your option) any later

;; version.

;; GCC is distributed in the hope that it will be useful, but WITHOUT ANY

;; WARRANTY; without even the implied warranty of MERCHANTABILITY or

;; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

;; for more details.

;; You should have received a copy of the GNU General Public License

;; along with GCC; see the file COPYING3.  If not see

;; .

(define_automaton "x_ipu")

(define_cpu_unit "x_e1_r,x_e1_s,x_e1_t"  "x_ipu")

(define_cpu_unit "x_wr_r,x_wr_s,x_wr_t,x_wr_fp" "x_ipu")

(define_cpu_unit "x_s1,x_s2,x_s3,x_s4"   "x_ipu")

(define_cpu_unit "x_t1,x_t2,x_t3,x_t4"   "x_ipu")

(define_cpu_unit "x_f1,x_f2,x_f3,x_f4,x_f5,x_f6"   "x_ipu")

(define_cpu_unit "x_store_tok"   "x_ipu")

(define_cpu_unit "x_ms,x_mt"   "x_ipu")

(define_reservation "x-e1-st" "(x_e1_s | x_e1_t)")

(define_reservation "x-e1-np" "(x_e1_r + x_e1_s + x_e1_t)")

(absence_set "x_e1_r" "x_e1_s,x_e1_t")

(absence_set "x_e1_s" "x_e1_t")

;; Try to avoid int <-> fp transitions.

(define_reservation "x-x" "x_s1|x_t1,x_s2|x_t2,x_s3|x_t3,x_s4|x_t4")

(define_reservation "x-f" "x_f1,x_f2,x_f3,x_f4,x_f5,x_f6")

(define_reservation "x-wr-st" "((x_wr_s | x_wr_t),x-x)")

(define_reservation "x-wr-np" "((x_wr_r + x_wr_s + x_wr_t),x-x)")

(define_reservation "x-wr-fp" "x_wr_fp,x-f")

(define_reservation "x-mem"   "x_ms|x_mt")

(absence_set "x_wr_fp"

             "x_s1,x_s2,x_s3,x_s4,x_t1,x_t2,x_t3,x_t4,x_wr_s,x_wr_t")

(absence_set "x_e1_r,x_wr_r,x_wr_s,x_wr_t"

             "x_f1,x_f2,x_f3,x_f4,x_f5,x_f6,x_wr_fp")

;; Don't have any load type insn in same group as store

(absence_set "x_ms,x_mt" "x_store_tok")

;;

;; Simple insns

;;

(define_insn_reservation "x_int" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (and (eq_attr "type" "integer")

            (eq_attr "atype" "reg")))

  "x-e1-st,x-wr-st")

(define_insn_reservation "x_agen" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (and (eq_attr "type" "integer")

            (eq_attr "atype" "agen")))

  "x-e1-st,x-wr-st")

(define_insn_reservation "x_lr" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "lr"))

  "x-e1-st,x-wr-st")

(define_insn_reservation "x_la" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "la"))

  "x-e1-st,x-wr-st")

(define_insn_reservation "x_larl" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "larl"))

  "x-e1-st,x-wr-st")

(define_insn_reservation "x_load" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "load"))

  "x-e1-st+x-mem,x-wr-st")

(define_insn_reservation "x_store" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "store"))

  "x-e1-st+x_store_tok,x-wr-st")

(define_insn_reservation "x_branch" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "branch"))

  "x_e1_r,x_wr_r")

(define_insn_reservation "x_call" 5

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "jsr"))

  "x-e1-np*5,x-wr-np")

(define_insn_reservation "x_mul_hi" 2

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "imulhi"))

  "x-e1-np*2,x-wr-np")

(define_insn_reservation "x_mul_sidi" 4

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "imulsi,imuldi"))

  "x-e1-np*4,x-wr-np")

(define_insn_reservation "x_div" 10

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "idiv"))

  "x-e1-np*10,x-wr-np")

(define_insn_reservation "x_sem" 17

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "sem"))

  "x-e1-np+x-mem,x-e1-np*16,x-wr-st")

;;

;; Multicycle insns

;;

(define_insn_reservation "x_cs" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "cs"))

  "x-e1-np,x-wr-np")

(define_insn_reservation "x_vs" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "vs"))

  "x-e1-np*10,x-wr-np")

(define_insn_reservation "x_stm" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "stm"))

  "(x-e1-np+x_store_tok)*10,x-wr-np")

(define_insn_reservation "x_lm" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "lm"))

  "x-e1-np*10,x-wr-np")

(define_insn_reservation "x_other" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "other"))

  "x-e1-np,x-wr-np")

;;

;; Floating point insns

;;

(define_insn_reservation "x_fsimptf" 7

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "fsimptf,fhex"))

  "x_e1_t*2,x-wr-fp")

(define_insn_reservation "x_fsimpdf" 6

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "fsimpdf,fmuldf,fmadddf,fhex"))

  "x_e1_t,x-wr-fp")

(define_insn_reservation "x_fsimpsf" 6

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "fsimpsf,fmulsf,fmaddsf,fhex"))

  "x_e1_t,x-wr-fp")

(define_insn_reservation "x_fmultf" 33

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "fmultf"))

  "x_e1_t*27,x-wr-fp")

(define_insn_reservation "x_fdivtf" 82

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "fdivtf,fsqrttf"))

  "x_e1_t*76,x-wr-fp")

(define_insn_reservation "x_fdivdf" 36

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "fdivdf,fsqrtdf"))

  "x_e1_t*30,x-wr-fp")

(define_insn_reservation "x_fdivsf" 36

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "fdivsf,fsqrtsf"))

  "x_e1_t*30,x-wr-fp")

(define_insn_reservation "x_floadtf" 6

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "floadtf"))

  "x_e1_t,x-wr-fp")

(define_insn_reservation "x_floaddf" 6

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "floaddf"))

  "x_e1_t,x-wr-fp")

(define_insn_reservation "x_floadsf" 6

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "floadsf"))

  "x_e1_t,x-wr-fp")

(define_insn_reservation "x_fstoredf" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "fstoredf"))

  "x_e1_t,x-wr-fp")

(define_insn_reservation "x_fstoresf" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "fstoresf"))

  "x_e1_t,x-wr-fp")

(define_insn_reservation "x_ftrunctf" 16

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "ftrunctf"))

  "x_e1_t*10,x-wr-fp")

(define_insn_reservation "x_ftruncdf" 11

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "ftruncdf"))

  "x_e1_t*5,x-wr-fp")

(define_insn_reservation "x_ftoi" 1

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "ftoi"))

  "x_e1_t*3,x-wr-fp")

(define_insn_reservation "x_itof" 7

  (and (eq_attr "cpu" "z990,z9_109,z9_ec")

       (eq_attr "type" "itoftf,itofdf,itofsf"))

  "x_e1_t*3,x-wr-fp")

(define_bypass 1 "x_fsimpdf" "x_fstoredf")

(define_bypass 1 "x_fsimpsf" "x_fstoresf")

(define_bypass 1 "x_floaddf" "x_fsimpdf,x_fstoredf,x_floaddf")

(define_bypass 1 "x_floadsf" "x_fsimpsf,x_fstoresf,x_floadsf")

;;

;; s390_agen_dep_p returns 1, if a register is set in the

;; first insn and used in the dependent insn to form a address.

;;

;;

;; If an instruction uses a register to address memory, it needs

;; to be set 5 cycles in advance.

;;

(define_bypass 5 "x_int,x_agen,x_lr"

                 "x_agen,x_la,x_branch,x_call,x_load,x_store,x_cs,x_stm,x_lm,x_other"

                 "s390_agen_dep_p")

(define_bypass 9 "x_int,x_agen,x_lr"

                 "x_floadtf, x_floaddf, x_floadsf, x_fstoredf, x_fstoresf,\

                  x_fsimpdf, x_fsimpsf, x_fdivdf, x_fdivsf"

                 "s390_agen_dep_p")

;;

;; A load type instruction uses a bypass to feed the result back

;; to the address generation pipeline stage.

;;

(define_bypass 4 "x_load"

                 "x_agen,x_la,x_branch,x_call,x_load,x_store,x_cs,x_stm,x_lm,x_other"

                 "s390_agen_dep_p")

(define_bypass 5 "x_load"

                 "x_floadtf, x_floaddf, x_floadsf, x_fstoredf, x_fstoresf,\

                  x_fsimpdf, x_fsimpsf, x_fdivdf, x_fdivsf"

                 "s390_agen_dep_p")

;;

;; A load address type instruction uses a bypass to feed the

;; result back to the address generation pipeline stage.

;;

(define_bypass 3 "x_larl,x_la"

                 "x_agen,x_la,x_branch,x_call,x_load,x_store,x_cs,x_stm,x_lm,x_other"

                 "s390_agen_dep_p")

(define_bypass 5 "x_larl, x_la"

                 "x_floadtf, x_floaddf, x_floadsf, x_fstoredf, x_fstoresf,\

                  x_fsimpdf, x_fsimpsf, x_fdivdf, x_fdivsf"

                 "s390_agen_dep_p")

;;

;; Operand forwarding

;;

(define_bypass 0 "x_lr,x_la,x_load" "x_int,x_lr")