Add missing file from my previous commit...
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Bernd Schmidt
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gcc/config/bfin/constraints.md
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gcc/config/bfin/constraints.md
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;; Constraint definitions for Blackfin
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;; Copyright (C) 2007 Free Software Foundation, Inc.
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;; Contributed by Analog Devices
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;; This file is part of GCC.
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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 2, or (at your
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;; option) any later version.
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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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;; You should have received a copy of the GNU General Public License
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;; along with GCC; see the file COPYING. If not, write to
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;; the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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(define_register_constraint "a" "PREGS"
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"A Pn register.")
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(define_register_constraint "d" "DREGS"
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"A Rn register.")
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(define_register_constraint "z" "PREGS_CLOBBERED"
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"A call clobbered Pn register.")
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(define_register_constraint "D" "EVEN_DREGS"
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"An even-numbered Rn register.")
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(define_register_constraint "W" "ODD_DREGS"
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"An odd-numbered Rn register.")
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(define_register_constraint "e" "AREGS"
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"An accumulator register.")
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(define_register_constraint "A" "EVEN_AREGS"
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"An even-numbered accumulator; A0.")
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(define_register_constraint "B" "ODD_AREGS"
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"An odd-numbered accumulator; A1.")
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(define_register_constraint "b" "IREGS"
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"An I register.")
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(define_register_constraint "v" "BREGS"
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"A B register.")
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(define_register_constraint "f" "MREGS"
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"An M register.")
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(define_register_constraint "c" "CIRCREGS"
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"A register used for circular buffering, i.e. I, B, or L registers.")
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(define_register_constraint "C" "CCREGS"
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"The CC register.")
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(define_register_constraint "t" "LT_REGS"
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"LT0 or LT1.")
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(define_register_constraint "u" "LB_REGS"
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"LB0 or LB1.")
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(define_register_constraint "k" "LC_REGS"
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"LC0 or LC1.")
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(define_register_constraint "x" "MOST_REGS"
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"Any R, P, B, M, I or L register.")
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(define_register_constraint "y" "PROLOGUE_REGS"
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"Additional registers typically used only in prologues and epilogues:
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RETS, RETN, RETI, RETX, RETE, ASTAT, SEQSTAT and USP.")
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(define_register_constraint "w" "NON_A_CC_REGS"
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"Any register except accumulators or CC.")
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(define_register_constraint "Z" "FDPIC_REGS"
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"@internal The FD-PIC GOT pointer; P3.")
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(define_register_constraint "Y" "FDPIC_FPTR_REGS"
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"@internal The FD-PIC function pointer register; P1.")
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(define_register_constraint "q0" "D0REGS"
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"The register R0.")
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(define_register_constraint "q1" "D1REGS"
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"The register R1.")
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(define_register_constraint "q2" "D2REGS"
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"The register R2.")
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(define_register_constraint "q3" "D3REGS"
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"The register R3.")
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(define_register_constraint "q4" "D4REGS"
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"The register R4.")
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(define_register_constraint "q5" "D5REGS"
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"The register R5.")
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(define_register_constraint "q6" "D6REGS"
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"The register R6.")
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(define_register_constraint "q7" "D7REGS"
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"The register R7.")
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(define_register_constraint "qA" "P0REGS"
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"The register P0.")
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;; Constant constraints.
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(define_constraint "J"
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"A constant value of the form 2**N, where N 5-bit wide."
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(and (match_code "const_int")
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(match_test "log2constp (ival)")))
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(define_constraint "Ks3"
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"A signed 3 bit immediate."
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(and (match_code "const_int")
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(match_test "ival >= -4 && ival <= 3")))
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(define_constraint "Ku3"
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"An unsigned 3 bit immediate."
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(and (match_code "const_int")
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(match_test "ival >= 0 && ival <= 7")))
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(define_constraint "Ks4"
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"A signed 4 bit immediate."
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(and (match_code "const_int")
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(match_test "ival >= -8 && ival <= 7")))
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(define_constraint "Ku4"
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"An unsigned 4 bit immediate."
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(and (match_code "const_int")
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(match_test "ival >= 0 && ival <= 15")))
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(define_constraint "Ks5"
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"A signed 5 bit immediate."
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(and (match_code "const_int")
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(match_test "ival >= -16 && ival <= 15")))
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(define_constraint "Ku5"
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"An unsigned 5 bit immediate."
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(and (match_code "const_int")
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(match_test "ival >= 0 && ival <= 31")))
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(define_constraint "Ks7"
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"A signed 7 bit immediate."
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(and (match_code "const_int")
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(match_test "ival >= -64 && ival <= 63")))
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(define_constraint "KN7"
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"A constant that when negated is a signed 7 bit immediate."
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(and (match_code "const_int")
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(match_test "ival >= -63 && ival <= 64")))
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(define_constraint "Ksh"
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"A signed 16 bit immediate."
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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 "Kuh"
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"An unsigned 16 bit immediate."
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(and (match_code "const_int")
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(match_test "ival >= 0 && ival <= 65535")))
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(define_constraint "L"
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"A constant value of the form ~(2**N)."
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(and (match_code "const_int")
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(match_test "log2constp (~ival)")))
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(define_constraint "M1"
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"An integer with the value 255."
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(and (match_code "const_int")
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(match_test "ival == 255")))
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(define_constraint "M2"
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"An integer with the value 65535."
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(and (match_code "const_int")
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(match_test "ival == 65535")))
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(define_constraint "P0"
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"An integer with 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 "P1"
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"An integer with 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 "P2"
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"An integer with the value 2."
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(and (match_code "const_int")
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(match_test "ival == 2")))
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(define_constraint "P3"
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"An integer with the value 3."
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(and (match_code "const_int")
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(match_test "ival == 3")))
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(define_constraint "P4"
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"An integer with the value 4."
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(and (match_code "const_int")
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(match_test "ival == 4")))
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(define_constraint "PA"
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"An integer constant describing any macflag except variants involving M."
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(and (match_code "const_int")
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(match_test "ival != MACFLAG_M && ival != MACFLAG_IS_M")))
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(define_constraint "PB"
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"An integer constant describing any macflag involving M."
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(and (match_code "const_int")
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(match_test "ival == MACFLAG_M || ival == MACFLAG_IS_M")))
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;; Extra constraints
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(define_constraint "Q"
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"A SYMBOL_REF."
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(match_code "symbol_ref"))
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