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;; Predicate definitions for Altera Nios II.
;; Copyright (C) 2012-2015 Free Software Foundation, Inc.
;; Contributed by Chung-Lin Tang <cltang@codesourcery.com>
;;
;; 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_predicate "const_0_operand"
(and (match_code "const_int,const_double,const_vector")
(match_test "op == CONST0_RTX (GET_MODE (op))")))
(define_predicate "reg_or_0_operand"
(ior (match_operand 0 "const_0_operand")
(match_operand 0 "register_operand")))
(define_predicate "const_uns_arith_operand"
(and (match_code "const_int")
(match_test "SMALL_INT_UNSIGNED (INTVAL (op))")))
(define_predicate "uns_arith_operand"
(ior (match_operand 0 "const_uns_arith_operand")
(match_operand 0 "register_operand")))
(define_predicate "const_arith_operand"
(and (match_code "const_int")
(match_test "SMALL_INT (INTVAL (op))")))
(define_predicate "arith_operand"
(ior (match_operand 0 "const_arith_operand")
(match_operand 0 "register_operand")))
(define_predicate "add_regimm_operand"
(ior (match_operand 0 "arith_operand")
(match_test "nios2_unspec_reloc_p (op)")))
(define_predicate "const_logical_operand"
(and (match_code "const_int")
(match_test "(INTVAL (op) & 0xffff) == 0
|| (INTVAL (op) & 0xffff0000) == 0")))
(define_predicate "logical_operand"
(ior (match_operand 0 "const_logical_operand")
(match_operand 0 "register_operand")))
(define_predicate "const_shift_operand"
(and (match_code "const_int")
(match_test "SHIFT_INT (INTVAL (op))")))
(define_predicate "shift_operand"
(ior (match_operand 0 "const_shift_operand")
(match_operand 0 "register_operand")))
(define_predicate "call_operand"
(ior (match_operand 0 "immediate_operand")
(match_operand 0 "register_operand")))
(define_predicate "rdwrctl_operand"
(and (match_code "const_int")
(match_test "RDWRCTL_INT (INTVAL (op))")))
(define_predicate "custom_insn_opcode"
(and (match_code "const_int")
(match_test "CUSTOM_INSN_OPCODE (INTVAL (op))")))
(define_special_predicate "expandable_comparison_operator"
(match_operand 0 "ordered_comparison_operator")
{
return (GET_MODE_CLASS (GET_MODE (XEXP (op, 0))) != MODE_FLOAT
|| nios2_validate_fpu_compare (GET_MODE (XEXP (op, 0)), &op,
&XEXP (op, 0), &XEXP (op, 1),
false));
})
(define_predicate "ldstio_memory_operand"
(match_code "mem")
{
if (TARGET_ARCH_R2)
{
rtx addr = XEXP (op, 0);
if (REG_P (addr))
return true;
else if (GET_CODE (addr) == PLUS)
return (REG_P (XEXP (addr, 0))
&& CONST_INT_P (XEXP (addr, 1))
&& SMALL_INT12 (INTVAL (XEXP (addr, 1))));
return false;
}
return memory_operand (op, mode);
})
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