1 ;; Predicate definitions for Xilinx MicroBlaze
2 ;; Copyright 2009, 2010 Free Software Foundation, Inc.
4 ;; Contributed by Michael Eager <eager@eagercon.com>.
6 ;; This file is part of GCC.
8 ;; GCC is free software; you can redistribute it and/or modify
9 ;; it under the terms of the GNU General Public License as published by
10 ;; the Free Software Foundation; either version 3, or (at your option)
13 ;; GCC is distributed in the hope that it will be useful,
14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 ;; GNU General Public License for more details.
18 ;; You should have received a copy of the GNU General Public License
19 ;; along with GCC; see the file COPYING3. If not see
20 ;; <http://www.gnu.org/licenses/>.
23 ;; Return whether OP can be used as an operands in arithmetic.
24 (define_predicate "arith_operand"
25 (ior (match_code "const_int,const_double")
26 (match_operand 0 "register_operand")))
28 (define_predicate "arith_operand32"
29 (ior (match_operand 0 "register_operand")
30 (and (match_code "const_int,const_double")
31 (match_test "LARGE_INT (op)"))))
33 (define_predicate "const_0_operand"
34 (and (match_code "const_int,const_double")
35 (match_test "op == CONST0_RTX (GET_MODE (op))")))
37 ;; Return whether OP is a register or the constant 0.
38 (define_predicate "reg_or_0_operand"
39 (ior (match_operand 0 "const_0_operand")
40 (match_operand 0 "register_operand")))
42 ;; Return if the operand is either the PC or a label_ref.
43 (define_special_predicate "pc_or_label_operand"
44 (ior (match_code "pc,label_ref")
45 (and (match_code "symbol_ref")
46 (match_test "!(strcmp ((XSTR (op, 0)), \"_stack_overflow_exit\"))"))))
48 ;; Test for valid call operand
49 (define_predicate "call_insn_operand"
50 (match_test "CALL_INSN_OP (op)"))
52 ;; Return if OPERAND is valid as a source operand for a move instruction.
53 (define_predicate "move_operand"
56 and (match_code "plus")
57 (not (match_test "(GET_CODE (XEXP (op, 0)) == REG) ^ (GET_CODE (XEXP (op,1)) == REG)"))
60 (match_operand 0 "general_operand")))
62 ;; Test for valid PIC call operand
63 (define_predicate "call_insn_plt_operand"
64 (match_test "PLT_ADDR_P (op)"))