gcc/config/m68k/constraints.md

;; This file is part of GCC.

;; GCC is free software; you can redistribute it and/or modify it ;; under the terms of the GNU General Public License as published ;; by the Free Software Foundation; either version 3, or (at your ;; option) any later version.

;; GCC is distributed in the hope that it will be useful, but WITHOUT ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public ;; License for more details.

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(define_register_constraint “a” “ADDR_REGS” “Address register.”)

(define_register_constraint “d” “DATA_REGS” “Data register.”)

(define_register_constraint “f” “TARGET_HARD_FLOAT ? FP_REGS : NO_REGS” “Floating point register.”)

(define_constraint “I” “Integer constant in the range 1 @dots 8, for immediate shift counts and addq.” (and (match_code “const_int”) (match_test “ival > 0 && ival <= 8”)))

(define_constraint “J” “Signed 16-bit integer constant.” (and (match_code “const_int”) (match_test “ival >= -0x8000 && ival <= 0x7fff”)))

(define_constraint “K” “Integer constant that moveq can't handle.” (and (match_code “const_int”) (match_test “ival < -0x80 || ival >= 0x80”)))

(define_constraint “L” “Integer constant in the range -8 @dots -1, for subq.” (and (match_code “const_int”) (match_test “ival < 0 && ival >= -8”)))

(define_constraint “M” “Integer constant that moveq+notb can't handle.” (and (match_code “const_int”) (match_test “ival < -0x100 || ival >= 0x100”)))

(define_constraint “N” “Integer constant in the range 24 @dots 31, for rotatert:SI 8 to 1 expressed as rotate.” (and (match_code “const_int”) (match_test “ival >= 24 && ival <= 31”)))

(define_constraint “O” “Integer constant 16, for rotate using swap.” (and (match_code “const_int”) (match_test “ival == 16”)))

(define_constraint “P” “Integer constant in the range 8 @dots 15, for rotatert:HI 8 to 1 expressed as rotate.” (and (match_code “const_int”) (match_test “ival >= 8 && ival <= 15”)))

(define_constraint “R” “Integer constant that mov3q can handle.” (and (match_code “const_int”) (match_test “valid_mov3q_const (ival)”)))

(define_constraint “G” “Defines all of the floating constants that are NOT 68881 constants. This is so 68881 constants get reloaded and the fpmovecr is used.” (and (match_code “const_double”) (match_test “!(TARGET_68881 && standard_68881_constant_p (op))”)))

(define_constraint “H” “Defines a real zero constant.” (and (match_code “const_double”) (match_test “op == CONST0_RTX (GET_MODE (op))”)))

(define_constraint “S” “Used for operands that satisfy ‘m’ when -mpcrel is in effect.” (and (match_code “mem”) (match_test “TARGET_PCREL && (GET_CODE (XEXP (op, 0)) == SYMBOL_REF || GET_CODE (XEXP (op, 0)) == LABEL_REF || GET_CODE (XEXP (op, 0)) == CONST)”)))

(define_constraint “T” “Used for operands that satisfy ‘s’ when -mpcrel is not in effect.” (and (match_code “symbol_ref,label_ref,const”) (match_test “!TARGET_PCREL”) (match_test “!flag_pic || LEGITIMATE_PIC_OPERAND_P (op)”)))

(define_memory_constraint “Q” “Means address register indirect addressing mode.” (and (match_code “mem”) (match_test “m68k_matches_q_p (op)”)))

(define_constraint “U” “Used for register offset addressing.” (and (match_code “mem”) (match_test “m68k_matches_u_p (op)”)))

(define_constraint “W” “Used for const_call_operands.” (match_operand 0 “const_call_operand”))

(define_constraint “Cs” “symbol_ref or const.” (match_code “symbol_ref,const”))

(define_constraint “Ci” “const_int.” (and (match_code “const_int”) (match_test “true”)))

(define_constraint “C0” “const_int 0.” (and (match_code “const_int”) (match_test “ival == 0”)))

(define_constraint “Cj” “Range of signed numbers that don't fit in 16 bits.” (and (match_code “const_int”) (match_test “ival < -0x8000 || ival > 0x7FFF”)))

(define_constraint “Cu” “16-bit offset for wrapped symbols” (and (match_code “const”) (match_test “m68k_unwrap_symbol (op, false) != op”)))

(define_constraint “CQ” “Integers valid for mvq.” (and (match_code “const_int”) (match_test “m68k_const_method (ival) == MOVQ”)))

(define_constraint “CW” “Integers valid for a moveq followed by a swap.” (and (match_code “const_int”) (match_test “m68k_const_method (ival) == SWAP”)))

(define_constraint “CZ” “Integers valid for mvz.” (and (match_code “const_int”) (match_test “m68k_const_method (ival) == MVZ”)))

(define_constraint “CS” “Integers valid for mvs.” (and (match_code “const_int”) (match_test “m68k_const_method (ival) == MVS”)))

(define_constraint “Ap” “push_operand.” (match_operand 0 “push_operand”))

(define_constraint “Ac” “Non-register operands allowed in clr.” (and (match_operand 0 “movsi_const0_operand”) (match_test “!REG_P (op)”)))