1 ;; Predicate definitions for Xtensa.
2 ;; Copyright (C) 2005-2013 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 3, 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 COPYING3. If not see
18 ;; <http://www.gnu.org/licenses/>.
20 (define_predicate "add_operand"
21 (ior (and (match_code "const_int")
22 (match_test "xtensa_simm8 (INTVAL (op))
23 || xtensa_simm8x256 (INTVAL (op))"))
24 (match_operand 0 "register_operand")))
26 (define_predicate "addsubx_operand"
27 (and (match_code "const_int")
28 (match_test "INTVAL (op) == 2
30 || INTVAL (op) == 8")))
32 (define_predicate "arith_operand"
33 (ior (and (match_code "const_int")
34 (match_test "xtensa_simm8 (INTVAL (op))"))
35 (match_operand 0 "register_operand")))
37 ;; Non-immediate operand excluding the constant pool.
38 (define_predicate "nonimmed_operand"
39 (ior (and (match_operand 0 "memory_operand")
40 (match_test "!constantpool_mem_p (op)"))
41 (match_operand 0 "register_operand")))
43 ;; Memory operand excluding the constant pool.
44 (define_predicate "mem_operand"
45 (and (match_operand 0 "memory_operand")
46 (match_test "!constantpool_mem_p (op)")))
48 ;; Memory operand in the constant pool.
49 (define_predicate "constantpool_operand"
50 (match_test "constantpool_mem_p (op)"))
52 (define_predicate "mask_operand"
53 (ior (and (match_code "const_int")
54 (match_test "xtensa_mask_immediate (INTVAL (op))"))
55 (match_operand 0 "register_operand")))
57 (define_predicate "extui_fldsz_operand"
58 (and (match_code "const_int")
59 (match_test "xtensa_mask_immediate ((1 << INTVAL (op)) - 1)")))
61 (define_predicate "sext_operand"
62 (if_then_else (match_test "TARGET_SEXT")
63 (match_operand 0 "nonimmed_operand")
64 (match_operand 0 "mem_operand")))
66 (define_predicate "sext_fldsz_operand"
67 (and (match_code "const_int")
68 (match_test "INTVAL (op) >= 8 && INTVAL (op) <= 23")))
70 (define_predicate "lsbitnum_operand"
71 (and (match_code "const_int")
72 (match_test "BITS_BIG_ENDIAN
73 ? (INTVAL (op) == BITS_PER_WORD - 1)
74 : (INTVAL (op) == 0)")))
76 (define_predicate "branch_operand"
77 (ior (and (match_code "const_int")
78 (match_test "xtensa_b4const_or_zero (INTVAL (op))"))
79 (match_operand 0 "register_operand")))
81 (define_predicate "ubranch_operand"
82 (ior (and (match_code "const_int")
83 (match_test "xtensa_b4constu (INTVAL (op))"))
84 (match_operand 0 "register_operand")))
86 (define_predicate "call_insn_operand"
87 (match_code "const_int,const,symbol_ref,reg")
89 if ((GET_CODE (op) == REG)
90 && (op != arg_pointer_rtx)
91 && ((REGNO (op) < FRAME_POINTER_REGNUM)
92 || (REGNO (op) > LAST_VIRTUAL_REGISTER)))
95 if (CONSTANT_ADDRESS_P (op))
97 /* Direct calls only allowed to static functions with PIC. */
100 tree callee, callee_sec, caller_sec;
102 if (GET_CODE (op) != SYMBOL_REF
103 || !SYMBOL_REF_LOCAL_P (op) || SYMBOL_REF_EXTERNAL_P (op))
106 /* Don't attempt a direct call if the callee is known to be in
107 a different section, since there's a good chance it will be
110 if (flag_function_sections
111 || DECL_ONE_ONLY (current_function_decl))
113 caller_sec = DECL_SECTION_NAME (current_function_decl);
114 callee = SYMBOL_REF_DECL (op);
117 if (DECL_ONE_ONLY (callee))
119 callee_sec = DECL_SECTION_NAME (callee);
120 if (((caller_sec == NULL_TREE) ^ (callee_sec == NULL_TREE))
121 || (caller_sec != NULL_TREE
122 && strcmp (TREE_STRING_POINTER (caller_sec),
123 TREE_STRING_POINTER (callee_sec)) != 0))
126 else if (caller_sec != NULL_TREE)
135 (define_predicate "move_operand"
137 (ior (match_operand 0 "register_operand")
138 (and (match_operand 0 "memory_operand")
139 (match_test "!constantpool_mem_p (op)
140 || GET_MODE_SIZE (mode) % UNITS_PER_WORD == 0")))
141 (ior (and (match_code "const_int")
142 (match_test "GET_MODE_CLASS (mode) == MODE_INT
143 && xtensa_simm12b (INTVAL (op))"))
144 (and (match_code "const_int,const_double,const,symbol_ref,label_ref")
145 (match_test "TARGET_CONST16 && CONSTANT_P (op)
146 && GET_MODE_SIZE (mode) % UNITS_PER_WORD == 0")))))
148 ;; Accept the floating point constant 1 in the appropriate mode.
149 (define_predicate "const_float_1_operand"
150 (match_code "const_double")
153 REAL_VALUE_FROM_CONST_DOUBLE (d, op);
154 return REAL_VALUES_EQUAL (d, dconst1);
157 (define_predicate "fpmem_offset_operand"
158 (and (match_code "const_int")
159 (match_test "xtensa_mem_offset (INTVAL (op), SFmode)")))
161 (define_predicate "branch_operator"
162 (match_code "eq,ne,lt,ge"))
164 (define_predicate "ubranch_operator"
165 (match_code "ltu,geu"))
167 (define_predicate "boolean_operator"
168 (match_code "eq,ne"))
170 (define_predicate "xtensa_cstoresi_operator"
171 (match_code "eq,ne,gt,ge,lt,le"))
173 (define_predicate "tls_symbol_operand"
174 (and (match_code "symbol_ref")
175 (match_test "SYMBOL_REF_TLS_MODEL (op) != 0")))