1 ;; Operand and operator predicates for the GCC CRIS port.
2 ;; Copyright (C) 2005 Free Software Foundation, Inc.
4 ;; This file is part of GCC.
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 2, or (at your option)
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.
16 ;; You should have received a copy of the GNU General Public License
17 ;; along with GCC; see the file COPYING. If not, write to
18 ;; the Free Software Foundation, 59 Temple Place - Suite 330,
19 ;; Boston, MA 02111-1307, USA.
22 ;; Operator predicates.
24 (define_predicate "cris_orthogonal_operator"
25 (match_code "plus, minus, ior, and, umin"))
27 (define_predicate "cris_commutative_orth_op"
28 (match_code "plus, ior, and, umin"))
30 ;; By the name, you might think we should include MULT. We don't because
31 ;; it doesn't accept the same addressing modes as the others (only
32 ;; registers) and there's also the problem of handling TARGET_MUL_BUG.
34 (define_predicate "cris_operand_extend_operator"
35 (match_code "plus, minus, umin"))
37 (define_predicate "cris_additive_operand_extend_operator"
38 (match_code "plus, minus"))
40 (define_predicate "cris_extend_operator"
41 (match_code "zero_extend, sign_extend"))
43 (define_predicate "cris_plus_or_bound_operator"
44 (match_code "plus, umin"))
46 ;; Used as an operator to get a handle on a already-known-valid MEM rtx:es
47 ;; (no need to validate the address), where some address expression parts
48 ;; have their own match_operand.
50 (define_predicate "cris_mem_op"
53 (define_predicate "cris_load_multiple_op"
54 (and (match_code "parallel")
55 (match_test "cris_movem_load_rest_p (op, 0)")))
57 (define_predicate "cris_store_multiple_op"
58 (and (match_code "parallel")
59 (match_test "cris_store_multiple_op_p (op)")))
62 ;; Operand helper predicates.
64 (define_predicate "cris_bdap_const_operand"
65 (and (match_code "label_ref, symbol_ref, const_int, const_double, const")
66 (not (and (match_test "flag_pic")
67 (match_test "cris_symbol (op)")))))
69 (define_predicate "cris_simple_address_operand"
70 (ior (match_operand:SI 0 "register_operand")
71 (and (match_code "post_inc")
72 (match_test "register_operand (XEXP (op, 0), Pmode)"))))
74 (define_predicate "cris_simple_operand"
75 (ior (match_operand 0 "register_operand")
76 (and (match_code "mem")
77 (match_test "cris_simple_address_operand (XEXP (op, 0),
80 ;; The caller needs to use :SI.
81 (define_predicate "cris_bdap_sign_extend_operand"
82 (and (match_code "sign_extend")
83 (and (match_test "MEM_P (XEXP (op, 0))")
84 (match_test "cris_simple_address_operand (XEXP (XEXP (op, 0), 0),
87 ;; FIXME: Should not have to test for 1.
88 (define_predicate "cris_scale_int_operand"
89 (and (match_code "const_int")
90 (ior (ior (match_test "op == GEN_INT (4)")
91 (match_test "op == const2_rtx"))
92 (match_test "op == const1_rtx"))))
94 ;; FIXME: Should be able to assume (reg int).
95 (define_predicate "cris_biap_mult_operand"
96 (and (match_code "mult")
97 (ior (and (match_test "register_operand (XEXP (op, 0), Pmode)")
98 (match_test "cris_scale_int_operand (XEXP (op, 1), Pmode)"))
99 (and (match_test "cris_scale_int_operand (XEXP (op, 0), Pmode)")
100 (match_test "register_operand (XEXP (op, 1), Pmode)")))))
103 ;; Operand predicates.
105 ;; This checks a part of an address, the one that is not a plain register
106 ;; for an addressing mode using BDAP.
107 ;; Allowed operands are either:
109 ;; b) a CONST operand (but not a symbol when generating PIC)
110 ;; c) a [r] or [r+] in SImode, or sign-extend from HI or QI.
112 (define_predicate "cris_bdap_operand"
113 (ior (match_operand 0 "cris_bdap_const_operand")
114 (ior (match_operand:SI 0 "cris_simple_operand")
115 (match_operand:SI 0 "cris_bdap_sign_extend_operand"))))
117 ;; This is similar to cris_bdap_operand:
118 ;; It checks a part of an address, the one that is not a plain register
119 ;; for an addressing mode using BDAP or BIAP.
120 ;; Allowed operands are either:
122 ;; b) a CONST operand (but not a symbol when generating PIC)
123 ;; c) a mult of (1, 2 or 4) and a register
124 ;; d) a [r] or [r+] in SImode, or sign-extend from HI or QI. */
126 (define_predicate "cris_bdap_biap_operand"
127 (ior (match_operand 0 "cris_bdap_operand")
128 (match_operand 0 "cris_biap_mult_operand")))
130 ;; Since a PIC symbol without a GOT entry is not a general_operand, we
131 ;; have to have a predicate that matches it. We use this in the expanded
132 ;; "movsi" anonymous pattern.
133 ;; FIXME: Can s/special_// when PR 20413 is fixed.
135 (define_special_predicate "cris_general_operand_or_gotless_symbol"
136 (ior (match_operand 0 "general_operand")
137 (and (match_code "const, symbol_ref, label_ref, unspec")
138 (match_test "cris_gotless_symbol (op)"))))
140 ;; Since with -fPIC, not all symbols are valid PIC symbols or indeed
141 ;; general_operands, we have to have a predicate that matches it for the
143 ;; FIXME: Can s/special_// when PR 20413 is fixed.
145 (define_special_predicate "cris_general_operand_or_symbol"
146 (ior (match_operand 0 "general_operand")
147 (and (match_code "const, symbol_ref, label_ref")
148 (match_test "cris_symbol (op)"))))
150 ;; Since a PLT symbol is not a general_operand, we have to have a
151 ;; predicate that matches it when we need it. We use this in the expanded
152 ;; "call" and "call_value" anonymous patterns.
154 (define_predicate "cris_general_operand_or_plt_symbol"
155 (ior (match_operand 0 "general_operand")
156 (and (match_code "const")
157 (and (match_test "GET_CODE (XEXP (op, 0)) == UNSPEC")
158 (not (match_test "TARGET_AVOID_GOTPLT"))))))
160 ;; This matches a (MEM (general_operand)) or
161 ;; (MEM (cris_general_operand_or_symbol)). The second one isn't a valid
162 ;; memory_operand, so we need this predicate to recognize call
163 ;; destinations before we change them to a PLT operand (by wrapping in
164 ;; UNSPEC CRIS_UNSPEC_PLT).
166 (define_predicate "cris_mem_call_operand"
167 (and (match_code "mem")
168 (ior (match_operand 0 "memory_operand")
169 (match_test "cris_general_operand_or_symbol (XEXP (op, 0),