91 lines
2.7 KiB
Markdown
91 lines
2.7 KiB
Markdown
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;; Generic DFA-based pipeline description for RISC-V targets.
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;; Copyright (C) 2011-2021 Free Software Foundation, Inc.
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;; Contributed by Andrew Waterman (andrew@sifive.com).
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;; Based on MIPS target for GNU compiler.
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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 it
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;; under the terms of the GNU General Public License as published
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;; by the Free Software Foundation; either version 3, or (at your
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;; option) any later version.
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;; GCC is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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;; 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 "pipe0")
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(define_cpu_unit "alu" "pipe0")
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(define_cpu_unit "imuldiv" "pipe0")
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(define_cpu_unit "fdivsqrt" "pipe0")
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(define_insn_reservation "generic_alu" 1
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(and (eq_attr "tune" "generic")
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(eq_attr "type" "unknown,const,arith,shift,slt,multi,auipc,nop,logical,move"))
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"alu")
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(define_insn_reservation "generic_load" 3
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(and (eq_attr "tune" "generic")
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(eq_attr "type" "load,fpload"))
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"alu")
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(define_insn_reservation "generic_store" 1
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(and (eq_attr "tune" "generic")
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(eq_attr "type" "store,fpstore"))
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"alu")
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(define_insn_reservation "generic_xfer" 3
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(and (eq_attr "tune" "generic")
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(eq_attr "type" "mfc,mtc,fcvt,fmove,fcmp"))
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"alu")
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(define_insn_reservation "generic_branch" 1
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(and (eq_attr "tune" "generic")
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(eq_attr "type" "branch,jump,call"))
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"alu")
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(define_insn_reservation "generic_imul" 10
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(and (eq_attr "tune" "generic")
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(eq_attr "type" "imul"))
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"imuldiv*10")
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(define_insn_reservation "generic_idivsi" 34
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(and (eq_attr "tune" "generic")
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(and (eq_attr "type" "idiv")
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(eq_attr "mode" "SI")))
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"imuldiv*34")
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(define_insn_reservation "generic_idivdi" 66
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(and (eq_attr "tune" "generic")
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(and (eq_attr "type" "idiv")
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(eq_attr "mode" "DI")))
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"imuldiv*66")
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(define_insn_reservation "generic_fmul_single" 5
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(and (eq_attr "tune" "generic")
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(and (eq_attr "type" "fadd,fmul,fmadd")
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(eq_attr "mode" "SF")))
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"alu")
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(define_insn_reservation "generic_fmul_double" 7
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(and (eq_attr "tune" "generic")
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(and (eq_attr "type" "fadd,fmul,fmadd")
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(eq_attr "mode" "DF")))
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"alu")
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(define_insn_reservation "generic_fdiv" 20
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(and (eq_attr "tune" "generic")
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(eq_attr "type" "fdiv"))
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"fdivsqrt*20")
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(define_insn_reservation "generic_fsqrt" 25
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(and (eq_attr "tune" "generic")
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(eq_attr "type" "fsqrt"))
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"fdivsqrt*25")
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