100 lines
3.6 KiB
Markdown
100 lines
3.6 KiB
Markdown
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;; Constraint definitions for Tilera TILEPro chip.
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;; Copyright (C) 2011-2021 Free Software Foundation, Inc.
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;; Contributed by Walter Lee (walt@tilera.com)
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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 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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;;
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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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;;
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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_register_constraint "R00" "R0_REGS" "r0")
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(define_register_constraint "R01" "R1_REGS" "r1")
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(define_register_constraint "R02" "R2_REGS" "r2")
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(define_register_constraint "R03" "R3_REGS" "r3")
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(define_register_constraint "R04" "R4_REGS" "r4")
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(define_register_constraint "R05" "R5_REGS" "r5")
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(define_register_constraint "R06" "R6_REGS" "r6")
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(define_register_constraint "R07" "R7_REGS" "r7")
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(define_register_constraint "R08" "R8_REGS" "r8")
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(define_register_constraint "R09" "R9_REGS" "r9")
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(define_register_constraint "R10" "R10_REGS" "r10")
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(define_constraint "I"
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"A signed 8 bit constant"
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(and (match_code "const_int")
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(match_test "ival >= -128 && ival <= 127")))
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(define_constraint "J"
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"Signed 16-bit integer constant"
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(and (match_code "const_int")
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(match_test "ival >= -32768 && ival <= 32767")))
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(define_constraint "K"
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"Nonzero integer constant with low 16 bits zero"
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(and (match_code "const_int")
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(match_test "ival && (ival & 0xFFFF) == 0")))
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(define_constraint "L"
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"Integer constant that fits in one signed byte when incremented"
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(and (match_code "const_int")
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(match_test "ival >= -129 && ival <= 126")))
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(define_constraint "M"
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"A bit mask suitable for 'mm'"
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(and (match_code "const_int")
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(match_test "tilepro_bitfield_operand_p (ival, NULL, NULL)")))
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(define_constraint "N"
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"Integer constant that is a byte tiled out four times"
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(and (match_code "const_int")
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(match_test "(ival & 0xFFFFFFFF) == (ival & 0xFF) * 0x01010101")))
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(define_constraint "O"
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"The integer zero constant"
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(and (match_code "const_int")
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(match_test "ival == 0")))
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(define_constraint "P"
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"Integer constant that is a sign-extended byte tiled out as two shorts"
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(and (match_code "const_int")
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(match_test "((ival & 0xFFFFFFFF)
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== ((trunc_int_for_mode (ival, QImode) & 0xFFFF)
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* 0x00010001))")))
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(define_constraint "Q"
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"Integer constant that fits in one signed byte when incremented, but not -1"
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(and (match_code "const_int")
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(match_test "ival >= -129 && ival <= 126 && ival != -1")))
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(define_constraint "T"
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"A const symbolc operand"
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(match_operand 0 "const_symbolic_operand"))
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(define_memory_constraint "U"
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"Non-auto-incrementing memory"
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(and (match_code "mem")
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(match_test "GET_RTX_CLASS (GET_CODE (XEXP (op, 0))) != RTX_AUTOINC")))
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(define_constraint "W"
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"A 4-element vector constant with identical elements"
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(and (match_code "const_vector")
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(match_test "CONST_VECTOR_NUNITS (op) == 4")
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(match_test "const_vec_duplicate_p (op)")))
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(define_constraint "Y"
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"A 2-element vector constant with identical elements"
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(and (match_code "const_vector")
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(match_test "CONST_VECTOR_NUNITS (op) == 2")
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(match_test "const_vec_duplicate_p (op)")))
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