58 lines
1.9 KiB
Markdown
58 lines
1.9 KiB
Markdown
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;; Constraint definitions for Lattice Mico32 architecture.
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;; Contributed by Jon Beniston <jon@beniston.com>
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;;
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;; Copyright (C) 2009 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 "J"
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"The value 0."
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(and (match_code "const_int")
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(match_test "ival == 0")))
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(define_constraint "K"
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"A signed 16-bit immediate in the range -32768 to 32767."
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(and (match_code "const_int")
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(match_test "IN_RANGE (ival, -32768, 32767)")))
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(define_constraint "L"
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"An unsigned 16-bit immediate in the range 0 to 65535."
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(and (match_code "const_int")
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(match_test "IN_RANGE (ival, 0, 65535)")))
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(define_constraint "M"
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"The value 1."
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(and (match_code "const_int")
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(match_test "ival == 1")))
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(define_constraint "U"
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"A shifted signed 16-bit constant appropriate for orhi."
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(and (match_code "const_int")
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(match_test "(ival & 0xffff) == 0
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&& (ival >> 31 == -1 || ival >> 31 == 0)")))
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(define_constraint "S"
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"A symbol in the small data section."
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(match_operand 0 "no_pic_small_symbol"))
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(define_constraint "Y"
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"A high part of a symbol."
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(and (match_code "high")
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(ior (ior (match_code "symbol_ref" "0")
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(match_code "label_ref" "0"))
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(match_code "const" "0"))))
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