;; Geode Scheduling ;; Copyright (C) 2006-2021 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/. ;; ;; The Geode architecture is one insn issue processor. ;; ;; This description is based on data from the following documents: ;; ;; “AMD Geode GX Processor Data Book” ;; Advanced Micro Devices, Inc., Aug 2005. ;; ;; “AMD Geode LX Processor Data Book” ;; Advanced Micro Devices, Inc., Jan 2006. ;; ;; ;; CPU execution units of the Geode: ;; ;; issue describes the issue pipeline. ;; alu describes the Integer unit ;; fpu describes the FP unit ;; ;; The fp unit is out of order execution unit with register renaming. ;; There is also memory management unit and execution pipeline for ;; load/store operations. We ignore it and difference between insns ;; using memory and registers.

(define_automaton “geode”)

(define_cpu_unit “geode_issue,geode_alu,geode_fpu” “geode”)

(define_insn_reservation “alu” 1 (and (eq_attr “cpu” “geode”) (eq_attr “type” “alu,alu1,negnot,icmp,lea,test,imov,imovx,icmov,incdec,setcc”)) “geode_issue,geode_alu”)

(define_insn_reservation “shift” 2 (and (eq_attr “cpu” “geode”) (eq_attr “type” “ishift,ishift1,rotate,rotate1”)) “geode_issue,geode_alu*2”)

(define_insn_reservation “imul” 7 (and (eq_attr “cpu” “geode”) (eq_attr “type” “imul”)) “geode_issue,geode_alu*7”)

(define_insn_reservation “idiv” 40 (and (eq_attr “cpu” “geode”) (eq_attr “type” “idiv”)) “geode_issue,geode_alu*40”)

;; The branch unit. (define_insn_reservation “call” 2 (and (eq_attr “cpu” “geode”) (eq_attr “type” “call,callv”)) “geode_issue,geode_alu*2”)

(define_insn_reservation “geode_branch” 1 (and (eq_attr “cpu” “geode”) (eq_attr “type” “ibr”)) “geode_issue,geode_alu”)

(define_insn_reservation “geode_pop_push” 1 (and (eq_attr “cpu” “geode”) (eq_attr “type” “pop,push”)) “geode_issue,geode_alu”)

(define_insn_reservation “geode_leave” 2 (and (eq_attr “cpu” “geode”) (eq_attr “type” “leave”)) “geode_issue,geode_alu*2”)

(define_insn_reservation “geode_load_str” 4 (and (eq_attr “cpu” “geode”) (and (eq_attr “type” “str”) (eq_attr “memory” “load,both”))) “geode_issue,geode_alu*4”)

(define_insn_reservation “geode_store_str” 2 (and (eq_attr “cpu” “geode”) (and (eq_attr “type” “str”) (eq_attr “memory” “store”))) “geode_issue,geode_alu*2”)

;; Be optimistic (define_insn_reservation “geode_unknown” 1 (and (eq_attr “cpu” “geode”) (eq_attr “type” “multi,other”)) “geode_issue,geode_alu”)

;; FPU

(define_insn_reservation “geode_fop” 6 (and (eq_attr “cpu” “geode”) (eq_attr “type” “fop,fcmp”)) “geode_issue,geode_fpu*6”)

(define_insn_reservation “geode_fsimple” 1 (and (eq_attr “cpu” “geode”) (eq_attr “type” “fmov,fcmov,fsgn,fxch”)) “geode_issue,geode_fpu”)

(define_insn_reservation “geode_fist” 4 (and (eq_attr “cpu” “geode”) (eq_attr “type” “fistp,fisttp”)) “geode_issue,geode_fpu*4”)

(define_insn_reservation “geode_fmul” 10 (and (eq_attr “cpu” “geode”) (eq_attr “type” “fmul”)) “geode_issue,geode_fpu*10”)

(define_insn_reservation “geode_fdiv” 47 (and (eq_attr “cpu” “geode”) (eq_attr “type” “fdiv”)) “geode_issue,geode_fpu*47”)

;; We use minimal latency (fsin) here (define_insn_reservation “geode_fpspc” 54 (and (eq_attr “cpu” “geode”) (eq_attr “type” “fpspc”)) “geode_issue,geode_fpu*54”)

(define_insn_reservation “geode_frndint” 12 (and (eq_attr “cpu” “geode”) (eq_attr “type” “frndint”)) “geode_issue,geode_fpu*12”)

(define_insn_reservation “geode_mmxmov” 1 (and (eq_attr “cpu” “geode”) (eq_attr “type” “mmxmov”)) “geode_issue,geode_fpu”)

(define_insn_reservation “geode_mmx” 2 (and (eq_attr “cpu” “geode”) (eq_attr “type” “mmx,mmxadd,mmxmul,mmxcmp,mmxcvt,mmxshft”)) “geode_issue,geode_fpu*2”)