1 ;; Predicate definitions for Xtensa.
2 ;; Copyright (C) 2005-2018 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. */
101 const char * callee_sec, * caller_sec;
103 if (GET_CODE (op) != SYMBOL_REF
104 || !SYMBOL_REF_LOCAL_P (op) || SYMBOL_REF_EXTERNAL_P (op))
107 /* Don't attempt a direct call if the callee is known to be in
108 a different section, since there's a good chance it will be
111 if (flag_function_sections
112 || DECL_ONE_ONLY (current_function_decl))
114 caller_sec = DECL_SECTION_NAME (current_function_decl);
115 callee = SYMBOL_REF_DECL (op);
118 if (DECL_ONE_ONLY (callee))
120 callee_sec = DECL_SECTION_NAME (callee);
121 if (((caller_sec == NULL) ^ (callee_sec == NULL))
122 || (caller_sec != NULL
123 && caller_sec != callee_sec))
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 || TARGET_AUTO_LITPOOLS)
147 && GET_MODE_SIZE (mode) % UNITS_PER_WORD == 0")))))
149 ;; Accept the floating point constant 1 in the appropriate mode.
150 (define_predicate "const_float_1_operand"
151 (match_code "const_double")
153 return real_equal (CONST_DOUBLE_REAL_VALUE (op), &dconst1);
156 (define_predicate "fpmem_offset_operand"
157 (and (match_code "const_int")
158 (match_test "xtensa_mem_offset (INTVAL (op), SFmode)")))
160 (define_predicate "branch_operator"
161 (match_code "eq,ne,lt,ge"))
163 (define_predicate "ubranch_operator"
164 (match_code "ltu,geu"))
166 (define_predicate "boolean_operator"
167 (match_code "eq,ne"))
169 (define_predicate "xtensa_cstoresi_operator"
170 (match_code "eq,ne,gt,ge,lt,le"))
172 (define_predicate "tls_symbol_operand"
173 (and (match_code "symbol_ref")
174 (match_test "SYMBOL_REF_TLS_MODEL (op) != 0")))