/* Definitions of target machine for GNU compiler for IA-32.
   Copyright (C) 1988, 1992, 1994, 1995, 1996, 1996, 1997, 1998, 1999,
   2000, 2001 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Functions in i386.c */
extern void override_options PARAMS ((void));
extern void optimization_options PARAMS ((int, int));

extern int ix86_can_use_return_insn_p PARAMS ((void));
extern int ix86_frame_pointer_required PARAMS ((void));
extern void ix86_setup_frame_addresses PARAMS ((void));

extern void ix86_asm_file_end PARAMS ((FILE *));
extern HOST_WIDE_INT ix86_initial_elimination_offset PARAMS((int, int));
extern void ix86_expand_prologue PARAMS ((void));
extern void ix86_expand_epilogue PARAMS ((int));

extern void ix86_output_addr_vec_elt PARAMS ((FILE *, int));
extern void ix86_output_addr_diff_elt PARAMS ((FILE *, int, int));

#ifdef RTX_CODE
extern int ix86_aligned_p PARAMS ((rtx));

extern int standard_80387_constant_p PARAMS ((rtx));
extern int standard_sse_constant_p PARAMS ((rtx));
extern int symbolic_reference_mentioned_p PARAMS ((rtx));

extern int any_fp_register_operand PARAMS ((rtx, enum machine_mode));
extern int register_and_not_any_fp_reg_operand PARAMS ((rtx, enum machine_mode));

extern int fp_register_operand PARAMS ((rtx, enum machine_mode));
extern int register_and_not_fp_reg_operand PARAMS ((rtx, enum machine_mode));

extern int x86_64_general_operand PARAMS ((rtx, enum machine_mode));
extern int x86_64_szext_general_operand PARAMS ((rtx, enum machine_mode));
extern int x86_64_nonmemory_operand PARAMS ((rtx, enum machine_mode));
extern int x86_64_szext_nonmemory_operand PARAMS ((rtx, enum machine_mode));
extern int x86_64_immediate_operand PARAMS ((rtx, enum machine_mode));
extern int x86_64_zext_immediate_operand PARAMS ((rtx, enum machine_mode));
extern int const_int_1_operand PARAMS ((rtx, enum machine_mode));
extern int symbolic_operand PARAMS ((rtx, enum machine_mode));
extern int tls_symbolic_operand PARAMS ((rtx, enum machine_mode));
extern int global_dynamic_symbolic_operand PARAMS ((rtx, enum machine_mode));
extern int local_dynamic_symbolic_operand PARAMS ((rtx, enum machine_mode));
extern int initial_exec_symbolic_operand PARAMS ((rtx, enum machine_mode));
extern int local_exec_symbolic_operand PARAMS ((rtx, enum machine_mode));
extern int pic_symbolic_operand PARAMS ((rtx, enum machine_mode));
extern int call_insn_operand PARAMS ((rtx, enum machine_mode));
extern int constant_call_address_operand PARAMS ((rtx, enum machine_mode));
extern int const0_operand PARAMS ((rtx, enum machine_mode));
extern int const1_operand PARAMS ((rtx, enum machine_mode));
extern int const248_operand PARAMS ((rtx, enum machine_mode));
extern int incdec_operand PARAMS ((rtx, enum machine_mode));
extern int reg_no_sp_operand PARAMS ((rtx, enum machine_mode));
extern int mmx_reg_operand PARAMS ((rtx, enum machine_mode));
extern int general_no_elim_operand PARAMS ((rtx, enum machine_mode));
extern int nonmemory_no_elim_operand PARAMS ((rtx, enum machine_mode));
extern int q_regs_operand PARAMS ((rtx, enum machine_mode));
extern int non_q_regs_operand PARAMS ((rtx, enum machine_mode));
extern int sse_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int fcmov_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int cmp_fp_expander_operand PARAMS ((rtx, enum machine_mode));
extern int ix86_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int ext_register_operand PARAMS ((rtx, enum machine_mode));
extern int binary_fp_operator PARAMS ((rtx, enum machine_mode));
extern int mult_operator PARAMS ((rtx, enum machine_mode));
extern int div_operator PARAMS ((rtx, enum machine_mode));
extern int arith_or_logical_operator PARAMS ((rtx, enum machine_mode));
extern int promotable_binary_operator PARAMS ((rtx, enum machine_mode));
extern int memory_displacement_operand PARAMS ((rtx, enum machine_mode));
extern int cmpsi_operand PARAMS ((rtx, enum machine_mode));
extern int long_memory_operand PARAMS ((rtx, enum machine_mode));
extern int aligned_operand PARAMS ((rtx, enum machine_mode));
extern enum machine_mode ix86_cc_mode PARAMS ((enum rtx_code, rtx, rtx));

extern int ix86_expand_movstr PARAMS ((rtx, rtx, rtx, rtx));
extern int ix86_expand_clrstr PARAMS ((rtx, rtx, rtx));
extern int ix86_expand_strlen PARAMS ((rtx, rtx, rtx, rtx));

extern bool legitimate_constant_p PARAMS ((rtx));
extern bool constant_address_p PARAMS ((rtx));
extern bool legitimate_pic_operand_p PARAMS ((rtx));
extern int legitimate_pic_address_disp_p PARAMS ((rtx));
extern int legitimate_address_p PARAMS ((enum machine_mode, rtx, int));
extern rtx legitimize_pic_address PARAMS ((rtx, rtx));
extern rtx legitimize_address PARAMS ((rtx, rtx, enum machine_mode));

extern void print_reg PARAMS ((rtx, int, FILE*));
extern void print_operand PARAMS ((FILE*, rtx, int));
extern void print_operand_address PARAMS ((FILE*, rtx));
extern bool output_addr_const_extra PARAMS ((FILE*, rtx));

extern void split_di PARAMS ((rtx[], int, rtx[], rtx[]));
extern void split_ti PARAMS ((rtx[], int, rtx[], rtx[]));

extern const char *output_set_got PARAMS ((rtx));
extern const char *output_387_binary_op PARAMS ((rtx, rtx*));
extern const char *output_fix_trunc PARAMS ((rtx, rtx*));
extern const char *output_fp_compare PARAMS ((rtx, rtx*, int, int));

extern void i386_dwarf_output_addr_const PARAMS ((FILE*, rtx));
extern void i386_output_dwarf_dtprel PARAMS ((FILE*, int, rtx));
extern rtx i386_simplify_dwarf_addr PARAMS ((rtx));

extern void ix86_expand_clear PARAMS ((rtx));
extern void ix86_expand_move PARAMS ((enum machine_mode, rtx[]));
extern void ix86_expand_vector_move PARAMS ((enum machine_mode, rtx[]));
extern void ix86_expand_binary_operator PARAMS ((enum rtx_code,
					       enum machine_mode, rtx[]));
extern int ix86_binary_operator_ok PARAMS ((enum rtx_code, enum machine_mode,
					  rtx[]));
extern void ix86_expand_unary_operator PARAMS ((enum rtx_code, enum machine_mode,
					      rtx[]));
extern int ix86_unary_operator_ok PARAMS ((enum rtx_code, enum machine_mode,
					 rtx[]));
extern int ix86_match_ccmode PARAMS ((rtx, enum machine_mode));
extern rtx ix86_expand_compare PARAMS ((enum rtx_code, rtx *, rtx *));
extern int ix86_use_fcomi_compare PARAMS ((enum rtx_code));
extern void ix86_expand_branch PARAMS ((enum rtx_code, rtx));
extern int ix86_expand_setcc PARAMS ((enum rtx_code, rtx));
extern int ix86_expand_int_movcc PARAMS ((rtx[]));
extern int ix86_expand_fp_movcc PARAMS ((rtx[]));
extern void ix86_expand_call PARAMS ((rtx, rtx, rtx, rtx, rtx));
extern void x86_initialize_trampoline PARAMS ((rtx, rtx, rtx));
extern rtx ix86_zero_extend_to_Pmode PARAMS ((rtx));
extern void ix86_split_long_move PARAMS ((rtx[]));
extern void ix86_split_ashldi PARAMS ((rtx *, rtx));
extern void ix86_split_ashrdi PARAMS ((rtx *, rtx));
extern void ix86_split_lshrdi PARAMS ((rtx *, rtx));
extern int ix86_address_cost PARAMS ((rtx));
extern rtx ix86_find_base_term PARAMS ((rtx));
extern int ix86_check_movabs PARAMS ((rtx, int));

extern rtx assign_386_stack_local PARAMS ((enum machine_mode, int));
extern int ix86_attr_length_immediate_default PARAMS ((rtx, int));
extern int ix86_attr_length_address_default PARAMS ((rtx));

extern enum machine_mode ix86_fp_compare_mode PARAMS ((enum rtx_code));

extern int x86_64_sign_extended_value PARAMS ((rtx));
extern int x86_64_zero_extended_value PARAMS ((rtx));
extern rtx ix86_libcall_value PARAMS ((enum machine_mode));
extern bool ix86_function_value_regno_p PARAMS ((int));
extern bool ix86_function_arg_regno_p PARAMS ((int));
extern int ix86_function_arg_boundary PARAMS ((enum machine_mode, tree));
extern int ix86_return_in_memory PARAMS ((tree));
extern void ix86_va_start PARAMS ((tree, rtx));
extern rtx ix86_va_arg PARAMS ((tree, tree));
extern void ix86_setup_incoming_varargs PARAMS ((CUMULATIVE_ARGS *,
						 enum machine_mode,
						 tree, int *, int));

extern rtx ix86_force_to_memory PARAMS ((enum machine_mode, rtx));
extern void ix86_free_from_memory PARAMS ((enum machine_mode));
extern void ix86_split_fp_branch PARAMS ((enum rtx_code code, rtx,
					  rtx, rtx, rtx, rtx));
extern int ix86_hard_regno_mode_ok PARAMS ((int, enum machine_mode));
extern int ix86_register_move_cost PARAMS ((enum machine_mode, enum reg_class,
					    enum reg_class));
extern int ix86_secondary_memory_needed PARAMS ((enum reg_class,
						 enum reg_class,
						 enum machine_mode, int));
extern enum reg_class ix86_preferred_reload_class PARAMS ((rtx,
							   enum reg_class));
extern int ix86_memory_move_cost PARAMS ((enum machine_mode, enum reg_class,
					  int));
extern void ix86_set_move_mem_attrs PARAMS ((rtx, rtx, rtx, rtx, rtx));
extern void emit_i387_cw_initialization PARAMS ((rtx, rtx));
extern bool ix86_fp_jump_nontrivial_p PARAMS ((enum rtx_code));
extern void x86_order_regs_for_local_alloc PARAMS ((void));
extern void x86_function_profiler PARAMS ((FILE *, int));


#ifdef TREE_CODE
extern void init_cumulative_args PARAMS ((CUMULATIVE_ARGS *, tree, rtx));
extern rtx function_arg PARAMS ((CUMULATIVE_ARGS *, enum machine_mode, tree, int));
extern int function_arg_pass_by_reference PARAMS ((CUMULATIVE_ARGS *,
						   enum machine_mode,
						   tree, int));
extern void function_arg_advance PARAMS ((CUMULATIVE_ARGS *, enum machine_mode,
					tree, int));
extern rtx ix86_function_value PARAMS ((tree));
extern void ix86_init_builtins PARAMS ((void));
extern rtx ix86_expand_builtin PARAMS ((tree, rtx, rtx, enum machine_mode, int));
#endif

#endif

#ifdef TREE_CODE
extern int ix86_return_pops_args PARAMS ((tree, tree, int));
extern tree ix86_build_va_list PARAMS ((void));

extern int ix86_data_alignment PARAMS ((tree, int));
extern int ix86_local_alignment PARAMS ((tree, int));
extern int ix86_constant_alignment PARAMS ((tree, int));
extern tree ix86_handle_dll_attribute PARAMS ((tree *, tree, tree, int, bool *));
extern tree ix86_handle_shared_attribute PARAMS ((tree *, tree, tree, int, bool *));

extern unsigned int i386_pe_section_type_flags PARAMS ((tree, const char *,
							int));
extern void i386_pe_asm_named_section PARAMS ((const char *, unsigned int));
extern int x86_field_alignment PARAMS ((tree, int));
#endif

extern rtx ix86_tls_get_addr PARAMS ((void));
extern void x86_machine_dependent_reorg PARAMS ((rtx));

/* In winnt.c  */
extern int i386_pe_dllexport_name_p PARAMS ((const char *));
extern int i386_pe_dllimport_name_p PARAMS ((const char *));
extern void i386_pe_unique_section PARAMS ((tree, int));
extern void i386_pe_declare_function_type PARAMS ((FILE *, const char *, int));
extern void i386_pe_record_external_function PARAMS ((const char *));
extern void i386_pe_record_exported_symbol PARAMS ((const char *, int));
extern void i386_pe_asm_file_end PARAMS ((FILE *));
extern void i386_pe_encode_section_info PARAMS ((tree, int));
extern const char *i386_pe_strip_name_encoding PARAMS ((const char *));
extern const char *i386_pe_strip_name_encoding_full PARAMS ((const char *));
extern void i386_pe_output_labelref PARAMS ((FILE *, const char *));
