118 lines
3.6 KiB
Markdown
118 lines
3.6 KiB
Markdown
|
;; 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")))
|