;; Scheduling description for PowerPC 604, PowerPC 604e, PowerPC 620,
;; and PowerPC 630 processors.
;; Copyright (C) 2003-2020 Free Software Foundation, Inc.
;;
;; 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 "ppc6xx,ppc6xxfp,ppc6xxfp2")
(define_cpu_unit "iu1_6xx,iu2_6xx,mciu_6xx" "ppc6xx")
(define_cpu_unit "fpu_6xx" "ppc6xxfp")
(define_cpu_unit "fpu1_6xx,fpu2_6xx" "ppc6xxfp2")
(define_cpu_unit "lsu_6xx,bpu_6xx,cru_6xx" "ppc6xx")
;; PPC604 32-bit 2xSCIU, MCIU, LSU, FPU, BPU
;; PPC604e 32-bit 2xSCIU, MCIU, LSU, FPU, BPU, CRU
;; MCIU used for imul/idiv and moves from/to spr
;; LSU 2 stage pipelined
;; FPU 3 stage pipelined
;; Max issue 4 insns/clock cycle
;; PPC604e is PPC604 with larger caches and a CRU. In the 604
;; the CR logical operations are handled in the BPU.
;; In the 604e, the CRU shares bus with BPU so only one condition
;; register or branch insn can be issued per clock. Not modelled.
;; PPC620 64-bit 2xSCIU, MCIU, LSU, FPU, BPU, CRU
;; PPC630 64-bit 2xSCIU, MCIU, LSU, 2xFPU, BPU, CRU
;; Max issue 4 insns/clock cycle
;; Out-of-order execution, in-order completion
;; No following instruction can dispatch in the same cycle as a branch
;; instruction. Not modelled. This is no problem if RCSP is not
;; enabled since the scheduler stops a schedule when it gets to a branch.
;; Four insns can be dispatched per cycle.
(define_insn_reservation "ppc604-load" 2
(and (eq_attr "type" "load")
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"lsu_6xx")
(define_insn_reservation "ppc604-fpload" 3
(and (eq_attr "type" "fpload")
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"lsu_6xx")
(define_insn_reservation "ppc604-store" 3
(and (eq_attr "type" "store,fpstore")
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"lsu_6xx")
(define_insn_reservation "ppc604-llsc" 3
(and (eq_attr "type" "load_l,store_c")
(eq_attr "cpu" "ppc604,ppc604e"))
"lsu_6xx")
(define_insn_reservation "ppc630-llsc" 4
(and (eq_attr "type" "load_l,store_c")
(eq_attr "cpu" "ppc620,ppc630"))
"lsu_6xx")
(define_insn_reservation "ppc604-integer" 1
(and (ior (eq_attr "type" "integer,insert,trap,cntlz,isel")
(and (eq_attr "type" "add,logical,shift,exts")
(eq_attr "dot" "no")))
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"iu1_6xx|iu2_6xx")
(define_insn_reservation "ppc604-two" 1
(and (eq_attr "type" "two")
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"iu1_6xx|iu2_6xx,iu1_6xx|iu2_6xx")
(define_insn_reservation "ppc604-three" 1
(and (eq_attr "type" "three")
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"iu1_6xx|iu2_6xx,iu1_6xx|iu2_6xx,iu1_6xx|iu2_6xx")
(define_insn_reservation "ppc604-imul" 4
(and (eq_attr "type" "mul")
(eq_attr "cpu" "ppc604"))
"mciu_6xx*2")
(define_insn_reservation "ppc604e-imul" 2
(and (eq_attr "type" "mul")
(eq_attr "cpu" "ppc604e"))
"mciu_6xx")
(define_insn_reservation "ppc620-imul" 5
(and (eq_attr "type" "mul")
(eq_attr "size" "32")
(eq_attr "cpu" "ppc620,ppc630"))
"mciu_6xx*3")
(define_insn_reservation "ppc620-imul2" 4
(and (eq_attr "type" "mul")
(eq_attr "size" "16")
(eq_attr "cpu" "ppc620,ppc630"))
"mciu_6xx*3")
(define_insn_reservation "ppc620-imul3" 3
(and (eq_attr "type" "mul")
(eq_attr "size" "8")
(eq_attr "cpu" "ppc620,ppc630"))
"mciu_6xx*3")
(define_insn_reservation "ppc620-lmul" 7
(and (eq_attr "type" "mul")
(eq_attr "size" "64")
(eq_attr "cpu" "ppc620,ppc630"))
"mciu_6xx*5")
(define_insn_reservation "ppc604-idiv" 20
(and (eq_attr "type" "div")
(eq_attr "cpu" "ppc604,ppc604e"))
"mciu_6xx*19")
(define_insn_reservation "ppc620-idiv" 37
(and (eq_attr "type" "div")
(eq_attr "size" "32")
(eq_attr "cpu" "ppc620"))
"mciu_6xx*36")
(define_insn_reservation "ppc630-idiv" 21
(and (eq_attr "type" "div")
(eq_attr "size" "32")
(eq_attr "cpu" "ppc630"))
"mciu_6xx*20")
(define_insn_reservation "ppc620-ldiv" 37
(and (eq_attr "type" "div")
(eq_attr "size" "64")
(eq_attr "cpu" "ppc620,ppc630"))
"mciu_6xx*36")
(define_insn_reservation "ppc604-compare" 3
(and (ior (eq_attr "type" "cmp")
(and (eq_attr "type" "add,logical,shift,exts")
(eq_attr "dot" "yes")))
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"(iu1_6xx|iu2_6xx)")
; FPU PPC604{,e},PPC620
(define_insn_reservation "ppc604-fpcompare" 5
(and (eq_attr "type" "fpcompare")
(eq_attr "cpu" "ppc604,ppc604e,ppc620"))
"fpu_6xx")
(define_insn_reservation "ppc604-fp" 3
(and (eq_attr "type" "fp,fpsimple")
(eq_attr "cpu" "ppc604,ppc604e,ppc620"))
"fpu_6xx")
(define_insn_reservation "ppc604-dmul" 3
(and (eq_attr "type" "dmul")
(eq_attr "cpu" "ppc604,ppc604e,ppc620"))
"fpu_6xx")
; Divides are not pipelined
(define_insn_reservation "ppc604-sdiv" 18
(and (eq_attr "type" "sdiv")
(eq_attr "cpu" "ppc604,ppc604e,ppc620"))
"fpu_6xx*18")
(define_insn_reservation "ppc604-ddiv" 32
(and (eq_attr "type" "ddiv")
(eq_attr "cpu" "ppc604,ppc604e,ppc620"))
"fpu_6xx*32")
(define_insn_reservation "ppc620-ssqrt" 31
(and (eq_attr "type" "ssqrt")
(eq_attr "cpu" "ppc620"))
"fpu_6xx*31")
(define_insn_reservation "ppc620-dsqrt" 31
(and (eq_attr "type" "dsqrt")
(eq_attr "cpu" "ppc620"))
"fpu_6xx*31")
; 2xFPU PPC630
(define_insn_reservation "ppc630-fpcompare" 5
(and (eq_attr "type" "fpcompare")
(eq_attr "cpu" "ppc630"))
"fpu1_6xx|fpu2_6xx")
(define_insn_reservation "ppc630-fp" 3
(and (eq_attr "type" "fp,dmul")
(eq_attr "cpu" "ppc630"))
"fpu1_6xx|fpu2_6xx")
(define_insn_reservation "ppc630-sdiv" 17
(and (eq_attr "type" "sdiv")
(eq_attr "cpu" "ppc630"))
"fpu1_6xx*17|fpu2_6xx*17")
(define_insn_reservation "ppc630-ddiv" 21
(and (eq_attr "type" "ddiv")
(eq_attr "cpu" "ppc630"))
"fpu1_6xx*21|fpu2_6xx*21")
(define_insn_reservation "ppc630-ssqrt" 18
(and (eq_attr "type" "ssqrt")
(eq_attr "cpu" "ppc630"))
"fpu1_6xx*18|fpu2_6xx*18")
(define_insn_reservation "ppc630-dsqrt" 25
(and (eq_attr "type" "dsqrt")
(eq_attr "cpu" "ppc630"))
"fpu1_6xx*25|fpu2_6xx*25")
(define_insn_reservation "ppc604-mfcr" 3
(and (eq_attr "type" "mfcr")
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"mciu_6xx")
(define_insn_reservation "ppc604-mtcr" 2
(and (eq_attr "type" "mtcr")
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"iu1_6xx|iu2_6xx")
(define_insn_reservation "ppc604-crlogical" 2
(and (eq_attr "type" "cr_logical")
(eq_attr "cpu" "ppc604"))
"bpu_6xx")
(define_insn_reservation "ppc604e-crlogical" 2
(and (eq_attr "type" "cr_logical")
(eq_attr "cpu" "ppc604e,ppc620,ppc630"))
"cru_6xx")
(define_insn_reservation "ppc604-mtjmpr" 2
(and (eq_attr "type" "mtjmpr")
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"mciu_6xx")
(define_insn_reservation "ppc604-mfjmpr" 3
(and (eq_attr "type" "mfjmpr")
(eq_attr "cpu" "ppc604,ppc604e,ppc620"))
"mciu_6xx")
(define_insn_reservation "ppc630-mfjmpr" 2
(and (eq_attr "type" "mfjmpr")
(eq_attr "cpu" "ppc630"))
"mciu_6xx")
(define_insn_reservation "ppc604-jmpreg" 1
(and (eq_attr "type" "jmpreg,branch")
(eq_attr "cpu" "ppc604,ppc604e,ppc620,ppc630"))
"bpu_6xx")
(define_insn_reservation "ppc604-isync" 0
(and (eq_attr "type" "isync")
(eq_attr "cpu" "ppc604,ppc604e"))
"bpu_6xx")
(define_insn_reservation "ppc630-isync" 6
(and (eq_attr "type" "isync")
(eq_attr "cpu" "ppc620,ppc630"))
"bpu_6xx")
(define_insn_reservation "ppc604-sync" 35
(and (eq_attr "type" "sync")
(eq_attr "cpu" "ppc604,ppc604e"))
"lsu_6xx")
(define_insn_reservation "ppc630-sync" 26
(and (eq_attr "type" "sync")
(eq_attr "cpu" "ppc620,ppc630"))
"lsu_6xx")