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;; Constraints for the DEC VAX port.
;; Copyright (C) 2007, 2009 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_constraint "Z0"
"Match a CONST_INT of 0"
(and (match_code "const_int")
(match_test "ival == 0")))
(define_constraint "U06"
"unsigned 6 bit value (0..63)"
(and (match_code "const_int")
(match_test "0 <= ival && ival < 64")))
(define_constraint "U08"
"Unsigned 8 bit value"
(and (match_code "const_int")
(match_test "0 <= ival && ival < 256")))
(define_constraint "U16"
"Unsigned 16 bit value"
(and (match_code "const_int")
(match_test "0 <= ival && ival < 65536")))
(define_constraint "CN6"
"negative 6 bit value (-63..-1)"
(and (match_code "const_int")
(match_test "-63 <= ival && ival < 0")))
(define_constraint "S08"
"signed 8 bit value [old]"
(and (match_code "const_int")
(match_test "-128 <= ival && ival < 128")))
(define_constraint "S16"
"signed 16 bit value [old]"
(and (match_code "const_int")
(match_test "-32768 <= ival && ival < 32768")))
(define_constraint "I"
"Match a CONST_INT of 0 [old]"
(and (match_code "const_int")
(match_test "satisfies_constraint_Z0 (GEN_INT (ival))")))
(define_constraint "J"
"unsigned 6 bit value [old]"
(and (match_code "const_int")
(match_test "satisfies_constraint_U06 (GEN_INT (ival))")))
(define_constraint "K"
"signed 8 bit value [old]"
(and (match_code "const_int")
(match_test "satisfies_constraint_S08 (GEN_INT (ival))")))
(define_constraint "L"
"signed 16 bit value [old]"
(and (match_code "const_int")
(match_test "satisfies_constraint_S16 (GEN_INT (ival))")))
(define_constraint "M"
"Unsigned 8 bit value [old]"
(and (match_code "const_int")
(match_test "satisfies_constraint_U08 (GEN_INT (ival))")))
(define_constraint "N"
"Unsigned 16 bit value [old]"
(and (match_code "const_int")
(match_test "satisfies_constraint_U16 (GEN_INT (ival))")))
(define_constraint "O"
"Negative short literals (-63..-1) [old]"
(and (match_code "const_int")
(match_test "satisfies_constraint_CN6 (GEN_INT (ival))")))
/* Similar, but for floating constants, and defining letters G and H. */
(define_constraint "G"
"Match a floating-point zero"
(and (match_code "const_double")
(match_test "op == CONST0_RTX (DFmode) || op == CONST0_RTX (SFmode)")))
/* Optional extra constraints for this machine. */
(define_memory_constraint "Q"
"operand is a MEM that does not have a mode-dependent address."
(and (match_code "mem")
(match_test "!mode_dependent_address_p (XEXP (op, 0))")))
(define_memory_constraint "B"
""
(and (match_operand:BLK 0 "memory_operand")
(not (match_operand:BLK 0 "illegal_blk_memory_operand" ""))))
(define_memory_constraint "R"
""
(and (match_operand:DI 0 "memory_operand")
(not (match_operand:DI 0 "illegal_addsub_di_memory_operand" ""))))
(define_constraint "T"
"@internal satisfies CONSTANT_P and, if pic is enabled, is not a SYMBOL_REF, LABEL_REF, or CONST."
(ior (not (match_code "const,symbol_ref,label_ref"))
(match_test "!flag_pic")))
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