1 ;; Predicate definitions for MIPS.
2 ;; Copyright (C) 2004 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.
21 (define_predicate "const_uns_arith_operand"
22 (and (match_code "const_int")
23 (match_test "SMALL_OPERAND_UNSIGNED (INTVAL (op))")))
25 (define_predicate "uns_arith_operand"
26 (ior (match_operand 0 "const_uns_arith_operand")
27 (match_operand 0 "register_operand")))
29 (define_predicate "const_arith_operand"
30 (and (match_code "const_int")
31 (match_test "SMALL_OPERAND (INTVAL (op))")))
33 (define_predicate "arith_operand"
34 (ior (match_operand 0 "const_arith_operand")
35 (match_operand 0 "register_operand")))
37 (define_predicate "sle_operand"
38 (and (match_code "const_int")
39 (match_test "SMALL_OPERAND (INTVAL (op) + 1)")))
41 (define_predicate "sleu_operand"
42 (and (match_operand 0 "sle_operand")
43 (match_test "INTVAL (op) + 1 != 0")))
45 (define_predicate "const_0_operand"
46 (and (match_code "const_int,const_double,const_vector")
47 (match_test "op == CONST0_RTX (GET_MODE (op))")))
49 (define_predicate "reg_or_0_operand"
50 (ior (and (match_operand 0 "const_0_operand")
51 (match_test "!TARGET_MIPS16"))
52 (match_operand 0 "register_operand")))
54 (define_predicate "const_1_operand"
55 (and (match_code "const_int,const_double,const_vector")
56 (match_test "op == CONST1_RTX (GET_MODE (op))")))
58 (define_predicate "reg_or_1_operand"
59 (ior (match_operand 0 "const_1_operand")
60 (match_operand 0 "register_operand")))
62 ;; This is used for indexing into vectors, and hence only accepts const_int.
63 (define_predicate "const_0_or_1_operand"
64 (and (match_code "const_int")
65 (ior (match_test "op == CONST0_RTX (GET_MODE (op))")
66 (match_test "op == CONST1_RTX (GET_MODE (op))"))))
68 (define_predicate "fpr_operand"
69 (and (match_code "reg")
70 (match_test "FP_REG_P (REGNO (op))")))
72 (define_predicate "hilo_operand"
73 (and (match_code "reg")
74 (match_test "MD_REG_P (REGNO (op))")))
76 (define_predicate "lo_operand"
77 (and (match_code "reg")
78 (match_test "REGNO (op) == LO_REGNUM")))
80 (define_predicate "fcc_reload_operand"
81 (and (match_code "reg,subreg")
82 (match_test "ST_REG_P (true_regnum (op))")))
84 (define_special_predicate "pc_or_label_operand"
85 (match_code "pc,label_ref"))
87 (define_predicate "const_call_insn_operand"
88 (match_code "const,symbol_ref,label_ref")
90 enum mips_symbol_type symbol_type;
92 if (!mips_symbolic_constant_p (op, &symbol_type))
98 /* If -mlong-calls, force all calls to use register addressing. */
99 return !TARGET_LONG_CALLS;
101 case SYMBOL_GOT_GLOBAL:
102 /* Without explicit relocs, there is no special syntax for
103 loading the address of a call destination into a register.
104 Using "la $25,foo; jal $25" would prevent the lazy binding
105 of "foo", so keep the address of global symbols with the
107 return !TARGET_EXPLICIT_RELOCS;
114 (define_predicate "call_insn_operand"
115 (ior (match_operand 0 "const_call_insn_operand")
116 (match_operand 0 "register_operand")))
118 (define_predicate "move_operand"
119 (match_operand 0 "general_operand")
121 switch (GET_CODE (op))
124 /* When generating mips16 code, LEGITIMATE_CONSTANT_P rejects
125 CONST_INTs that can't be loaded using simple insns. */
129 /* When generating 32-bit code, allow DImode move_operands to
130 match arbitrary constants. We split them after reload. */
131 if (!TARGET_64BIT && mode == DImode)
134 /* Otherwise check whether the constant can be loaded in a single
136 return LUI_INT (op) || SMALL_INT (op) || SMALL_INT_UNSIGNED (op);
141 return CONST_GP_P (op) || mips_atomic_symbolic_constant_p (op);
148 (define_predicate "consttable_operand"
149 (match_test "CONSTANT_P (op)"))
151 (define_predicate "symbolic_operand"
152 (match_code "const,symbol_ref,label_ref")
154 enum mips_symbol_type type;
155 return mips_symbolic_constant_p (op, &type);
158 (define_predicate "general_symbolic_operand"
159 (match_code "const,symbol_ref,label_ref")
161 enum mips_symbol_type type;
162 return mips_symbolic_constant_p (op, &type) && type == SYMBOL_GENERAL;
165 (define_predicate "global_got_operand"
166 (match_code "const,symbol_ref,label_ref")
168 enum mips_symbol_type type;
169 return mips_symbolic_constant_p (op, &type) && type == SYMBOL_GOT_GLOBAL;
172 (define_predicate "local_got_operand"
173 (match_code "const,symbol_ref,label_ref")
175 enum mips_symbol_type type;
176 return mips_symbolic_constant_p (op, &type) && type == SYMBOL_GOT_LOCAL;
179 (define_predicate "stack_operand"
180 (and (match_code "mem")
181 (match_test "mips_stack_address_p (XEXP (op, 0), GET_MODE (op))")))
183 (define_predicate "macc_msac_operand"
184 (ior (and (match_code "plus") (match_test "ISA_HAS_MACC"))
185 (and (match_code "minus") (match_test "ISA_HAS_MSAC")))
187 rtx mult = XEXP (op, GET_CODE (op) == PLUS ? 0 : 1);
188 rtx accum = XEXP (op, GET_CODE (op) == PLUS ? 1 : 0);
189 return (GET_CODE (mult) == MULT
190 && REG_P (XEXP (mult, 0))
191 && REG_P (XEXP (mult, 1))
196 (define_predicate "equality_operator"
197 (match_code "eq,ne"))
199 (define_predicate "extend_operator"
200 (match_code "zero_extend,sign_extend"))
202 (define_predicate "trap_comparison_operator"
203 (match_code "eq,ne,lt,ltu,ge,geu"))
206 (define_predicate "small_data_pattern"
207 (and (match_code "set,parallel,unspec,unspec_volatile,prefetch")
208 (match_test "mips_small_data_pattern_p (op)")))