32 lines
1.1 KiB
Markdown
32 lines
1.1 KiB
Markdown
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;; Constraint 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_constraint "I"
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"A 32-bit signed immediate."
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(and (match_code "const_int")
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(match_test "IN_RANGE (ival, -1 - 0x7fffffff, 0x7fffffff)")))
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(define_constraint "B"
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"A constant argument for LDDW."
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(match_code "const,symbol_ref,label_ref,const_double,const_int"))
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(define_constraint "S"
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"A constant call address."
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(match_code "const,symbol_ref,label_ref,const_int"))
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