64 lines
1.8 KiB
Markdown
64 lines
1.8 KiB
Markdown
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;; Predicate definitions for eBPF.
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;; Copyright (C) 2019-2021 Free Software Foundation, Inc.
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;;
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;; This file is part of GCC.
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;;
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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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;;
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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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;;
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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_predicate "reg_or_imm_operand"
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(ior (and (match_code "const_int")
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(match_test "IN_RANGE (INTVAL (op), -1 - 0x7fffffff, 0x7fffffff)"))
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(match_operand 0 "register_operand")))
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(define_predicate "imm32_operand"
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(ior (and (match_code "const_int")
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(match_test "IN_RANGE (INTVAL (op), 0, 0xffffffff)"))
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(match_code "symbol_ref,label_ref,const")))
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(define_predicate "lddw_operand"
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(match_code "symbol_ref,label_ref,const,const_double,const_int"))
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(define_predicate "call_operand"
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(match_code "reg,symbol_ref,const_int,const")
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{
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if (GET_CODE (op) == CONST)
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{
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op = XEXP (op, 0);
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switch (GET_CODE (op))
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{
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case SYMBOL_REF:
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case LABEL_REF:
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case CONST_INT:
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return true;
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break;
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default:
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break;
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}
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return false;
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}
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return true;
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})
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(define_predicate "mov_src_operand"
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(ior (match_operand 0 "memory_operand")
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(match_operand 0 "reg_or_imm_operand")
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(match_operand 0 "lddw_operand")))
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(define_predicate "register_compare_operator"
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(match_code "eq,ne,geu,gtu,ge,gt"))
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