gcc/config/mips/mips-protos.h

   1 /* Prototypes of target machine for GNU compiler.  MIPS version.
   2    Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   3    1999, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   4    Contributed by A. Lichnewsky (lich@inria.inria.fr).
   5    Changed by Michael Meissner  (meissner@osf.org).
   6    64 bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and
   7    Brendan Eich (brendan@microunity.com).
   8
   9 This file is part of GCC.
  10
  11 GCC is free software; you can redistribute it and/or modify
  12 it under the terms of the GNU General Public License as published by
  13 the Free Software Foundation; either version 2, or (at your option)
  14 any later version.
  15
  16 GCC is distributed in the hope that it will be useful,
  17 but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 GNU General Public License for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with GCC; see the file COPYING.  If not, write to
  23 the Free Software Foundation, 59 Temple Place - Suite 330,
  24 Boston, MA 02111-1307, USA.  */
  25
  26 #ifndef GCC_MIPS_PROTOS_H
  27 #define GCC_MIPS_PROTOS_H
  28
  29 /* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address.
  30
  31    SYMBOL_GENERAL
  32        Used when none of the below apply.
  33
  34    SYMBOL_SMALL_DATA
  35        The symbol refers to something in a small data section.
  36
  37    SYMBOL_CONSTANT_POOL
  38        The symbol refers to something in the mips16 constant pool.
  39
  40    SYMBOL_GOT_LOCAL
  41        The symbol refers to local data that will be found using
  42        the global offset table.
  43
  44    SYMBOL_GOT_GLOBAL
  45        Likewise non-local data.
  46
  47    SYMBOL_GOTOFF_PAGE
  48        An UNSPEC wrapper around a SYMBOL_GOT_LOCAL.  It represents the
  49        offset from _gp of a GOT page entry.
  50
  51    SYMBOL_GOTOFF_GLOBAL
  52        An UNSPEC wrapper around a SYMBOL_GOT_GLOBAL.  It represents the
  53        the offset from _gp of the symbol's GOT entry.
  54
  55    SYMBOL_GOTOFF_CALL
  56        Like SYMBOL_GOTOFF_GLOBAL, but used when calling a global function.
  57        The GOT entry is allowed to point to a stub rather than to the
  58        function itself.
  59
  60    SYMBOL_GOTOFF_LOADGP
  61        An UNSPEC wrapper around a function's address.  It represents the
  62        offset of _gp from the start of the function.
  63
  64    SYMBOL_64_HIGH
  65        For a 64-bit symbolic address X, this is the value of
  66        (%highest(X) << 16) + %higher(X).
  67
  68    SYMBOL_64_MID
  69        For a 64-bit symbolic address X, this is the value of
  70        (%higher(X) << 16) + %hi(X).
  71
  72    SYMBOL_64_LOW
  73        For a 64-bit symbolic address X, this is the value of
  74        (%hi(X) << 16) + %lo(X).  */
  75 enum mips_symbol_type {
  76   SYMBOL_GENERAL,
  77   SYMBOL_SMALL_DATA,
  78   SYMBOL_CONSTANT_POOL,
  79   SYMBOL_GOT_LOCAL,
  80   SYMBOL_GOT_GLOBAL,
  81   SYMBOL_GOTOFF_PAGE,
  82   SYMBOL_GOTOFF_GLOBAL,
  83   SYMBOL_GOTOFF_CALL,
  84   SYMBOL_GOTOFF_LOADGP,
  85   SYMBOL_64_HIGH,
  86   SYMBOL_64_MID,
  87   SYMBOL_64_LOW
  88 };
  89 #define NUM_SYMBOL_TYPES (SYMBOL_64_LOW + 1)
  90
  91 extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_type *);
  92 extern bool mips_atomic_symbolic_constant_p (rtx);
  93 extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, int);
  94 extern bool mips_stack_address_p (rtx, enum machine_mode);
  95 extern int mips_address_insns (rtx, enum machine_mode);
  96 extern int mips_const_insns (rtx);
  97 extern int mips_fetch_insns (rtx);
  98 extern int mips_idiv_insns (void);
  99 extern int fp_register_operand (rtx, enum machine_mode);
 100 extern int lo_operand (rtx, enum machine_mode);
 101 extern bool mips_legitimate_address_p (enum machine_mode, rtx, int);
 102 extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
 103 extern bool mips_legitimize_address (rtx *, enum machine_mode);
 104 extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
 105
 106 extern int m16_uimm3_b (rtx, enum machine_mode);
 107 extern int m16_simm4_1 (rtx, enum machine_mode);
 108 extern int m16_nsimm4_1 (rtx, enum machine_mode);
 109 extern int m16_simm5_1 (rtx, enum machine_mode);
 110 extern int m16_nsimm5_1 (rtx, enum machine_mode);
 111 extern int m16_uimm5_4 (rtx, enum machine_mode);
 112 extern int m16_nuimm5_4 (rtx, enum machine_mode);
 113 extern int m16_simm8_1 (rtx, enum machine_mode);
 114 extern int m16_nsimm8_1 (rtx, enum machine_mode);
 115 extern int m16_uimm8_1 (rtx, enum machine_mode);
 116 extern int m16_nuimm8_1 (rtx, enum machine_mode);
 117 extern int m16_uimm8_m1_1 (rtx, enum machine_mode);
 118 extern int m16_uimm8_4 (rtx, enum machine_mode);
 119 extern int m16_nuimm8_4 (rtx, enum machine_mode);
 120 extern int m16_simm8_8 (rtx, enum machine_mode);
 121 extern int m16_nsimm8_8 (rtx, enum machine_mode);
 122
 123 extern rtx mips_subword (rtx, int);
 124 extern bool mips_split_64bit_move_p (rtx, rtx);
 125 extern void mips_split_64bit_move (rtx, rtx);
 126 extern const char *mips_output_move (rtx, rtx);
 127 extern void mips_restore_gp (void);
 128 #ifdef RTX_CODE
 129 extern bool mips_emit_scc (enum rtx_code, rtx);
 130 extern void gen_conditional_branch (rtx *, enum rtx_code);
 131 #endif
 132 extern void gen_conditional_move (rtx *);
 133 extern void mips_gen_conditional_trap (rtx *);
 134 extern void mips_expand_call (rtx, rtx, rtx, rtx, int);
 135 extern void mips_emit_fcc_reload (rtx, rtx, rtx);
 136 extern void mips_set_return_address (rtx, rtx);
 137 extern bool mips_expand_block_move (rtx, rtx, rtx);
 138
 139 extern void init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx);
 140 extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode,
 141                                   tree, int);
 142 extern struct rtx_def *function_arg (const CUMULATIVE_ARGS *,
 143                                      enum machine_mode, tree, int);
 144 extern int function_arg_boundary (enum machine_mode, tree);
 145 extern bool mips_pad_arg_upward (enum machine_mode, tree);
 146 extern bool mips_pad_reg_upward (enum machine_mode, tree);
 147 extern void mips_va_start (tree, rtx);
 148
 149 extern bool mips_expand_unaligned_load (rtx, rtx, unsigned int, int);
 150 extern bool mips_expand_unaligned_store (rtx, rtx, unsigned int, int);
 151 extern void override_options (void);
 152 extern void mips_conditional_register_usage (void);
 153 extern void mips_order_regs_for_local_alloc (void);
 154 extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
 155
 156 extern void print_operand (FILE *, rtx, int);
 157 extern void print_operand_address (FILE *, rtx);
 158 extern int mips_output_external (FILE *, tree, const char *);
 159 extern void mips_output_filename (FILE *, const char *);
 160 extern void mips_output_ascii (FILE *, const char *, size_t, const char *);
 161 extern void mips_output_aligned_bss (FILE *, tree, const char *,
 162                                      unsigned HOST_WIDE_INT, int);
 163 extern void mips_output_aligned_decl_common (FILE *, tree, const char *,
 164                                              unsigned HOST_WIDE_INT,
 165                                              unsigned int);
 166 extern void mips_declare_common_object (FILE *, const char *,
 167                                         const char *, unsigned HOST_WIDE_INT,
 168                                         unsigned int, bool);
 169 extern void mips_declare_object (FILE *, const char *, const char *,
 170                                  const char *, ...);
 171 extern void mips_declare_object_name (FILE *, const char *, tree);
 172 extern void mips_finish_declare_object (FILE *, tree, int, int);
 173
 174 extern bool mips_small_data_pattern_p (rtx);
 175 extern rtx mips_rewrite_small_data (rtx);
 176 extern HOST_WIDE_INT compute_frame_size (HOST_WIDE_INT);
 177 extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
 178 extern rtx mips_return_addr (int, rtx);
 179 extern void mips_expand_prologue (void);
 180 extern void mips_expand_epilogue (int);
 181 extern int mips_can_use_return_insn (void);
 182 extern struct rtx_def *mips_function_value (tree, tree, enum machine_mode);
 183
 184 extern bool mips_cannot_change_mode_class (enum machine_mode,
 185                                            enum machine_mode, enum reg_class);
 186 extern bool mips_dangerous_for_la25_p (rtx);
 187 extern enum reg_class mips_preferred_reload_class (rtx, enum reg_class);
 188 extern enum reg_class mips_secondary_reload_class (enum reg_class,
 189                                                    enum machine_mode,
 190                                                    rtx, int);
 191 extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
 192 extern int build_mips16_call_stub (rtx, rtx, rtx, int);
 193 extern int mips_register_move_cost (enum machine_mode, enum reg_class,
 194                                     enum reg_class);
 195
 196 extern int mips_adjust_insn_length (rtx, int);
 197 extern const char *mips_output_load_label (void);
 198 extern const char *mips_output_conditional_branch (rtx, rtx *, int, int,
 199                                                    int, int);
 200 extern const char *mips_output_division (const char *, rtx *);
 201 extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
 202 extern bool mips_linked_madd_p (rtx, rtx);
 203 extern rtx mips_prefetch_cookie (rtx, rtx);
 204
 205 extern void irix_asm_output_align (FILE *, unsigned);
 206 extern const char *current_section_name (void);
 207 extern unsigned int current_section_flags (void);
 208
 209 #endif /* ! GCC_MIPS_PROTOS_H */