64 lines
2.0 KiB
Markdown
64 lines
2.0 KiB
Markdown
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;; DFA scheduling description of the Synopsys DesignWare ARC600 cpu
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;; for GNU C compiler
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;; Copyright (C) 2007-2021 Free Software Foundation, Inc.
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;; Contributor: Joern Rennecke <joern.rennecke@embecosm.com>
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;; on behalf of Synopsys Inc.
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;; This file is part of GCC.
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;; GCC is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;; GCC is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GCC; see the file COPYING3. If not see
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;; <http://www.gnu.org/licenses/>.
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(define_automaton "ARC600")
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(define_cpu_unit "issue_600" "ARC600")
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(define_cpu_unit "mul64_600" "ARC600")
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; latency from flag-setting insns to branches is 3.
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(define_insn_reservation "compare_600" 3
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(and (eq_attr "tune" "arc600")
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(eq_attr "type" "compare"))
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"issue_600")
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(define_insn_reservation "load_DI_600" 4
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(and (eq_attr "tune" "arc600")
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(eq_attr "type" "load")
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(match_operand:DI 0 "" ""))
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"issue_600")
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(define_insn_reservation "load_600" 3
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(and (eq_attr "tune" "arc600")
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(eq_attr "type" "load")
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(not (match_operand:DI 0 "" "")))
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"issue_600")
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(define_insn_reservation "mul_600_fast" 3
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(and (eq_attr "tune" "arc600")
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(match_test "arc_multcost < COSTS_N_INSNS (7)")
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(eq_attr "type" "multi,umulti"))
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"mul64_600*3")
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(define_insn_reservation "mul_600_slow" 8
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(and (eq_attr "tune" "arc600")
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(match_test "arc_multcost >= COSTS_N_INSNS (7)")
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(eq_attr "type" "multi,umulti"))
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"mul64_600*8")
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(define_insn_reservation "mul_mac_600" 3
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(and (eq_attr "tune" "arc600")
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(eq_attr "type" "mulmac_600"))
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"nothing*3")
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(define_bypass 1 "mul_mac_600" "mul_mac_600")
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