1;; Operand and operator predicates for the GCC CRIS port. 2;; Copyright (C) 2005-2013 Free Software Foundation, Inc. 3 4;; This file is part of GCC. 5;; 6;; GCC is free software; you can redistribute it and/or modify 7;; it under the terms of the GNU General Public License as published by 8;; the Free Software Foundation; either version 3, or (at your option) 9;; any later version. 10;; 11;; GCC is distributed in the hope that it will be useful, 12;; but WITHOUT ANY WARRANTY; without even the implied warranty of 13;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14;; GNU General Public License for more details. 15;; 16;; You should have received a copy of the GNU General Public License 17;; along with GCC; see the file COPYING3. If not see 18;; <http://www.gnu.org/licenses/>. 19 20 21;; Operator predicates. 22 23(define_predicate "cris_orthogonal_operator" 24 (match_code "plus, minus, ior, and, umin")) 25 26(define_predicate "cris_commutative_orth_op" 27 (match_code "plus, ior, and, umin")) 28 29;; By the name, you might think we should include MULT. We don't because 30;; it doesn't accept the same addressing modes as the others (only 31;; registers) and there's also the problem of handling TARGET_MUL_BUG. 32 33(define_predicate "cris_operand_extend_operator" 34 (match_code "plus, minus, umin")) 35 36(define_predicate "cris_additive_operand_extend_operator" 37 (match_code "plus, minus")) 38 39(define_predicate "cris_extend_operator" 40 (match_code "zero_extend, sign_extend")) 41 42(define_predicate "cris_plus_or_bound_operator" 43 (match_code "plus, umin")) 44 45;; Used as an operator to get a handle on a already-known-valid MEM rtx:es 46;; (no need to validate the address), where some address expression parts 47;; have their own match_operand. 48 49(define_predicate "cris_mem_op" 50 (match_code "mem")) 51 52(define_predicate "cris_load_multiple_op" 53 (and (match_code "parallel") 54 (match_test "cris_movem_load_rest_p (op, 0)"))) 55 56(define_predicate "cris_store_multiple_op" 57 (and (match_code "parallel") 58 (match_test "cris_store_multiple_op_p (op)"))) 59 60 61;; Operand helper predicates. 62 63(define_predicate "cris_bdap_const_operand" 64 (and (match_code "label_ref, symbol_ref, const_int, const_double, const") 65 (ior (not (match_test "flag_pic")) 66 (match_test "cris_valid_pic_const (op, true)")))) 67 68(define_predicate "cris_simple_address_operand" 69 (ior (match_operand:SI 0 "register_operand") 70 (and (match_code "post_inc") 71 (match_test "register_operand (XEXP (op, 0), Pmode)")))) 72 73(define_predicate "cris_simple_operand" 74 (ior (match_operand 0 "register_operand") 75 (and (match_code "mem") 76 (match_test "cris_simple_address_operand (XEXP (op, 0), 77 Pmode)")))) 78 79;; The caller needs to use :SI. 80(define_predicate "cris_bdap_sign_extend_operand" 81; Disabled until <URL:http://gcc.gnu.org/ml/gcc-patches/2005-10/msg01376.html> 82; or <URL:http://gcc.gnu.org/ml/gcc-patches/2005-10/msg00940.html> is committed. 83 (match_test "0")) 84; (and (match_code "sign_extend") 85; (and (match_test "MEM_P (XEXP (op, 0))") 86; (match_test "cris_simple_address_operand (XEXP (XEXP (op, 0), 0), 87; Pmode)")))) 88 89;; FIXME: Should not have to test for 1. 90(define_predicate "cris_scale_int_operand" 91 (and (match_code "const_int") 92 (ior (ior (match_test "op == GEN_INT (4)") 93 (match_test "op == const2_rtx")) 94 (match_test "op == const1_rtx")))) 95 96;; FIXME: Should be able to assume (reg int). 97(define_predicate "cris_biap_mult_operand" 98 (and (match_code "mult") 99 (ior (and (match_test "register_operand (XEXP (op, 0), Pmode)") 100 (match_test "cris_scale_int_operand (XEXP (op, 1), Pmode)")) 101 (and (match_test "cris_scale_int_operand (XEXP (op, 0), Pmode)") 102 (match_test "register_operand (XEXP (op, 1), Pmode)"))))) 103 104 105;; Operand predicates. 106 107;; This checks a part of an address, the one that is not a plain register 108;; for an addressing mode using BDAP. 109;; Allowed operands are either: 110;; a) a register 111;; b) a CONST operand (but not a symbol when generating PIC) 112;; c) a [r] or [r+] in SImode, or sign-extend from HI or QI. 113 114(define_predicate "cris_bdap_operand" 115 (ior (match_operand 0 "cris_bdap_const_operand") 116 (ior (match_operand:SI 0 "cris_simple_operand") 117 (match_operand:SI 0 "cris_bdap_sign_extend_operand")))) 118 119;; This is similar to cris_bdap_operand: 120;; It checks a part of an address, the one that is not a plain register 121;; for an addressing mode using BDAP or BIAP. 122;; Allowed operands are either: 123;; a) a register 124;; b) a CONST operand (but not a symbol when generating PIC) 125;; c) a mult of (1, 2 or 4) and a register 126;; d) a [r] or [r+] in SImode, or sign-extend from HI or QI. */ 127 128(define_predicate "cris_bdap_biap_operand" 129 (ior (match_operand 0 "cris_bdap_operand") 130 (match_operand 0 "cris_biap_mult_operand"))) 131 132;; Since with -fPIC, not all symbols are valid PIC symbols or indeed 133;; general_operands, we have to have a predicate that matches it for the 134;; "movsi" expander. 135;; FIXME: Can s/special_// when PR 20413 is fixed. 136 137(define_special_predicate "cris_general_operand_or_symbol" 138 (ior (match_operand 0 "general_operand") 139 (and (match_code "const, symbol_ref, label_ref") 140 ; The following test is actually just an assertion. 141 (match_test "cris_pic_symbol_type_of (op) != cris_no_symbol")))) 142 143;; A predicate for the anon movsi expansion, one that fits a PCREL 144;; operand as well as general_operand. 145 146(define_special_predicate "cris_general_operand_or_pic_source" 147 (ior (match_operand 0 "general_operand") 148 (and (match_test "flag_pic") 149 (match_test "cris_valid_pic_const (op, false)")))) 150 151;; Since a PLT symbol is not a general_operand, we have to have a 152;; predicate that matches it when we need it. We use this in the expanded 153;; "call" and "call_value" anonymous patterns. 154 155(define_predicate "cris_nonmemory_operand_or_callable_symbol" 156 (ior (match_operand 0 "nonmemory_operand") 157 (and (match_code "const") 158 (and 159 (match_test "GET_CODE (XEXP (op, 0)) == UNSPEC") 160 (ior 161 (match_test "XINT (XEXP (op, 0), 1) == CRIS_UNSPEC_PLT_PCREL") 162 (match_test "XINT (XEXP (op, 0), 1) == CRIS_UNSPEC_PCREL")))))) 163 164;; This matches a (MEM (general_operand)) or 165;; (MEM (cris_general_operand_or_symbol)). The second one isn't a valid 166;; memory_operand, so we need this predicate to recognize call 167;; destinations before we change them to a PLT operand (by wrapping in 168;; UNSPEC CRIS_UNSPEC_PLT). 169 170(define_predicate "cris_mem_call_operand" 171 (and (match_code "mem") 172 (ior (match_operand 0 "memory_operand") 173 (match_test "cris_general_operand_or_symbol (XEXP (op, 0), 174 Pmode)")))) 175