;; Scheduling description for z196 (cpu 2817). ;; Copyright (C) 2010-2021 Free Software Foundation, Inc. ;; Contributed by Christian Borntraeger (Christian.Borntraeger@de.ibm.com) ;; Andreas Krebbel (Andreas.Krebbel@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 ;; http://www.gnu.org/licenses/.

(define_automaton “z196_ipu”)

;; Fetch + Decoder (define_cpu_unit “z196_g1” “z196_ipu”) (define_cpu_unit “z196_g2” “z196_ipu”) (define_cpu_unit “z196_g3” “z196_ipu”) (define_cpu_unit “z196_cr1” “z196_ipu”) (define_cpu_unit “z196_cr2” “z196_ipu”) (define_cpu_unit “z196_cr3” “z196_ipu”)

(final_presence_set “z196_g2” “z196_g1”) (final_presence_set “z196_g3” “z196_g2”) (final_presence_set “z196_cr2” “z196_cr1”) (final_presence_set “z196_cr3” “z196_cr2”) (exclusion_set “z196_g1” “z196_cr1”)

;; Instructions can be groupable, end a group, or be alone in a group. (define_reservation “z196_simple” “( z196_g1 | z196_g2 | z196_g3 )”) (define_reservation “z196_ends” “( z196_g3 | ( z196_g2 + z196_g3 ) | ( z196_g1 + z196_g2 + z196_g3 ) )”)

;; Try to keep cracked and alone insns together in a clump. This will also ;; improve the clumping of “normal” insns. We also allow crackes insns ;; to go as a last instruction together with normal ones. (define_reservation “z196_crack” “( z196_cr1 | z196_cr2 | z196_cr3 | z196_g3)”) (define_reservation “z196_alone” “( z196_cr1 | z196_cr2 | z196_cr3 )”)

;; Most simple instruction a fast enough to be handled by OOO even with ;; latency == 0. This reduces life ranges and spilling. We want to increase ;; life range for longer running ops, though, thats why we do not use ;; -fno-schedule-insns. (define_insn_reservation “z196_simple_LSU” 0 (and (eq_attr “cpu” “z196”) (and (eq_attr “type” “load,store,lr”) (eq_attr “z196prop” “none”))) “z196_simple”)

(define_insn_reservation “z196_simple_FXU” 0 (and (eq_attr “cpu” “z196”) (and (eq_attr “type” “integer,la,larl,other”) (and (eq_attr “z196prop” “none”) (eq_attr “op_type” “RR”)))) “z196_simple”)

(define_insn_reservation “z196_simple_DUAL” 0 (and (eq_attr “cpu” “z196”) (and (eq_attr “type” “integer,la,larl,other”) (and (eq_attr “z196prop” “none”) (eq_attr “op_type” “!RR”)))) “z196_simple”)

(define_insn_reservation “z196_cracked” 0 (and (eq_attr “cpu” “z196”) (and (eq_attr “type” “integer,la,larl,load,lr,store,other”) (eq_attr “z196prop” “z196_cracked”))) “z196_crack”)

(define_insn_reservation “z196_alone” 0 (and (eq_attr “cpu” “z196”) (and (eq_attr “type” “integer,la,larl,load,lr,store,other”) (eq_attr “z196prop” “z196_alone”))) “z196_alone”)

(define_insn_reservation “z196_ends” 0 (and (eq_attr “cpu” “z196”) (and (eq_attr “type” “integer,la,larl,load,lr,store,other”) (eq_attr “z196prop” “z196_ends”))) “z196_ends”)

(define_insn_reservation “z196_branch” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “branch”)) “z196_ends”)

(define_insn_reservation “z196_call” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “jsr”)) “z196_ends”)

(define_insn_reservation “z196_mul_hi” 10 (and (eq_attr “cpu” “z196”) (eq_attr “type” “imulhi”)) “z196_simple”)

(define_insn_reservation “z196_mul_si” 12 (and (eq_attr “cpu” “z196”) (eq_attr “type” “imulsi”)) “z196_simple”)

(define_insn_reservation “z196_mul_di” 14 (and (eq_attr “cpu” “z196”) (eq_attr “type” “imuldi”)) “z196_simple”)

(define_insn_reservation “z196_div” 73 (and (eq_attr “cpu” “z196”) (eq_attr “type” “idiv”)) “z196_alone”)

(define_insn_reservation “z196_sem” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “sem”)) “z196_crack”)

(define_insn_reservation “z196_cs” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “cs”)) “z196_crack”)

(define_insn_reservation “z196_vs” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “vs”)) “z196_alone”)

(define_insn_reservation “z196_lm_stm” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “stm,lm”)) “z196_crack”)

;; ;; Binary Floating Point ;;

(define_insn_reservation “z196_fsimptf” 18 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fsimptf,fhex”)) “z196_alone”)

(define_insn_reservation “z196_fmultf” 47 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fmultf”)) “z196_alone”)

(define_insn_reservation “z196_fsimpdf” 7 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fsimpdf,fmuldf,fhex”)) “z196_simple”)

(define_insn_reservation “z196_fmadddf” 7 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fmadddf”)) “z196_alone”)

(define_insn_reservation “z196_fsimpsf” 7 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fsimpsf,fmulsf,fhex”)) “z196_simple”)

(define_insn_reservation “z196_fmaddsf” 7 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fmaddsf”)) “z196_alone”)

(define_insn_reservation “z196_fdivtf” 108 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fdivtf,fsqrttf”)) “z196_alone”)

(define_insn_reservation “z196_fdivdf” 36 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fdivdf,fsqrtdf”)) “z196_simple”)

(define_insn_reservation “z196_fdivsf” 29 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fdivsf,fsqrtsf”)) “z196_simple”)

;; Loads and stores are cheap as well. (define_insn_reservation “z196_floaddf” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “floaddf”)) “z196_simple”)

(define_insn_reservation “z196_floadsf” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “floadsf”)) “z196_simple”)

(define_insn_reservation “z196_fstoredf” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fstoredf”)) “z196_simple”)

(define_insn_reservation “z196_fstoresf” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fstoresf”)) “z196_simple”)

(define_insn_reservation “z196_ftrunctf” 9 (and (eq_attr “cpu” “z196”) (eq_attr “type” “ftrunctf”)) “z196_simple”)

(define_insn_reservation “z196_ftruncdf” 7 (and (eq_attr “cpu” “z196”) (eq_attr “type” “ftruncdf”)) “z196_simple”)

(define_insn_reservation “z196_ftoi” 7 (and (eq_attr “cpu” “z196”) (eq_attr “type” “ftoi”)) “z196_crack”)

(define_insn_reservation “z196_itof” 7 (and (eq_attr “cpu” “z196”) (eq_attr “type” “itoftf,itofdf,itofsf”)) “z196_crack”)

;; ;; Decimal Floating Point ;;

;; DDTR (define_insn_reservation “z196_fdivdd” 33 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fdivdd”)) “z196_simple”)

;; DXTR (define_insn_reservation “z196_fdivtd” 35 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fdivtd”)) “z196_alone”)

;; LEDTR (define_insn_reservation “z196_ftruncsd” 34 (and (eq_attr “cpu” “z196”) (eq_attr “type” “ftruncsd”)) “z196_simple”)

;; LDXTR (define_insn_reservation “z196_ftruncdd” 36 (and (eq_attr “cpu” “z196”) (eq_attr “type” “ftruncdd”)) “z196_simple”)

;; These are normal fp loads/stores - which are cheap. (define_insn_reservation “z196_floadsddd” 0 (and (eq_attr “cpu” “z196”) (eq_attr “type” “floadsd,floaddd,fstoredd,fstoresd”)) “z196_simple”)

;; MDTR (define_insn_reservation “z196_fmuldd” 23 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fmuldd”)) “z196_simple”)

;; MXTR (define_insn_reservation “z196_fmultd” 25 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fmultd”)) “z196_alone”)

;; multiple different isns like add, sub etc. ;; Just use the same defaults as z10. (define_insn_reservation “z196_fsimpsd” 17 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fsimpsd”)) “z196_simple”) (define_insn_reservation “z196_fsimpdd” 17 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fsimpdd”)) “z196_simple”) (define_insn_reservation “z196_fsimptd” 18 (and (eq_attr “cpu” “z196”) (eq_attr “type” “fsimptd”)) “z196_alone”)

;; CDGTR (define_insn_reservation “z196_itofdd” 45 (and (eq_attr “cpu” “z196”) (eq_attr “type” “itofdd”)) “z196_crack”)

;; CXGTR (define_insn_reservation “z196_itoftd” 33 (and (eq_attr “cpu” “z196”) (eq_attr “type” “itoftd”)) “z196_crack”)

;; CGXTR, CGDTR (define_insn_reservation “z196_ftoidfp” 33 (and (eq_attr “cpu” “z196”) (eq_attr “type” “ftoidfp”)) “z196_crack”)