;; Constraint definitions for the MN10300. ;; Copyright (C) 2007-2021 Free Software Foundation, Inc. ;; ;; 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. ;; ;; You should have received a copy of the GNU General Public License ;; along with GCC; see the file COPYING3. If not see ;; http://www.gnu.org/licenses/.

(define_register_constraint “d” “DATA_REGS” “A data register.”)

(define_register_constraint “a” “ADDRESS_REGS” “An address register.”)

;; This can be used for QI/HImode memory operations, and most arithmetic. ;; AM33 supports these on all registers, where MN103 needs DATA_REGS. (define_register_constraint “D” “TARGET_AM33 ? GENERAL_REGS : DATA_REGS” “A general register for AM33, and a data register otherwise.”)

;; Similarly for ADDRESS_REGS vs GENERAL_REGS. (define_register_constraint “A” “TARGET_AM33 ? GENERAL_REGS : ADDRESS_REGS” “A general register for AM33, and an address register otherwise.”)

(define_register_constraint “y” “SP_REGS” “An SP register (if available).”)

(define_register_constraint “z” “MDR_REGS” “The MDR register.”)

(define_register_constraint “x” “TARGET_AM33 ? EXTENDED_REGS : NO_REGS” “An extended register.”)

(define_register_constraint “f” “TARGET_AM33_2 ? FP_REGS : NO_REGS” “A floating point register.”)

(define_register_constraint “c” “TARGET_AM33_2 ? FP_ACC_REGS : NO_REGS” “A floating point accumulator register.”)

(define_memory_constraint “Q” “@internal” (and (match_code “mem”) (match_test “!CONSTANT_ADDRESS_P (XEXP (op, 0))”)))

(define_constraint “S” “@internal” (if_then_else (match_test “flag_pic”) (and (match_test “GET_CODE (op) == UNSPEC”) (ior (match_test “XINT (op, 1) == UNSPEC_PLT”) (match_test “XINT (op, 1) == UNSPEC_PIC”) (match_test “XINT (op, 1) == UNSPEC_GOTSYM_OFF”))) (match_test “GET_CODE (op) == SYMBOL_REF”)))

;; Integer constraints

(define_constraint “I” “An integer zero.” (and (match_code “const_int”) (match_test “ival == 0”)))

(define_constraint “J” “An integer one.” (and (match_code “const_int”) (match_test “ival == 1”)))

(define_constraint “K” “An integer two.” (and (match_code “const_int”) (match_test “ival == 2”)))

(define_constraint “L” “An integer four.” (and (match_code “const_int”) (match_test “ival == 4”)))

(define_constraint “M” “An integer three.” (and (match_code “const_int”) (match_test “ival == 3”)))

(define_constraint “N” “An integer of either 255 or 65535.” (and (match_code “const_int”) (ior (match_test “ival == 255”) (match_test “ival == 65535”))))

(define_constraint “O” “An integer between -8 and +7 inclusive.” (and (match_code “const_int”) (and (match_test “ival >= -8”) (match_test “ival <= 7”))))

;; Floating-point constraints (define_constraint “G” “Floating-point zero.” (and (match_code “const_double”) (match_test “op == CONST0_RTX (mode)”)))