82 lines
2.4 KiB
Markdown
82 lines
2.4 KiB
Markdown
;; Constraint definitions for Renesas RX.
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;; Copyright (C) 2008, 2009 Free Software Foundation, Inc.
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;; Contributed by Red Hat.
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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 "Symbol"
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"@internal Constraint on the type of rtx allowed in call insns"
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(match_test "GET_CODE (op) == SYMBOL_REF")
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)
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(define_constraint "Int08"
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"@internal A signed or unsigned 8-bit immediate value"
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(and (match_code "const_int")
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(match_test "IN_RANGE (ival, (-1 << 8), (1 << 8) - 1)")
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)
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)
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(define_constraint "Sint08"
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"@internal A signed 8-bit immediate value"
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(and (match_code "const_int")
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(match_test "IN_RANGE (ival, (-1 << 7), (1 << 7) - 1)")
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)
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)
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(define_constraint "Sint16"
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"@internal A signed 16-bit immediate value"
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(and (match_code "const_int")
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(match_test "IN_RANGE (ival, (-1 << 15), (1 << 15) - 1)")
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)
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)
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(define_constraint "Sint24"
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"@internal A signed 24-bit immediate value"
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(and (match_code "const_int")
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(match_test "IN_RANGE (ival, (-1 << 23), (1 << 23) - 1)")
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)
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)
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;; This constraint is used by the SUBSI3 pattern because the
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;; RX SUB instruction can only take a 4-bit unsigned integer
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;; value. Also used by the MVTIPL instruction.
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(define_constraint "Uint04"
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"@internal An unsigned 4-bit immediate value"
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(and (match_code "const_int")
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(match_test "IN_RANGE (ival, 0, 15)")
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)
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)
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;; This is used in arithmetic and logic instructions for
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;; a source operand that lies in memory and which satisfies
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;; rx_restricted_memory_address().
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(define_memory_constraint "Q"
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"A MEM which only uses REG or REG+INT addressing."
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(and (match_code "mem")
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(ior (match_code "reg" "0")
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(and (match_code "plus" "0")
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(and (match_code "reg,subreg" "00")
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(match_code "const_int" "01")
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)
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)
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)
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)
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)
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