/* Prototypes for alpha.c functions used in the md file & elsewhere.
   Copyright (C) 1999-2020 Free Software Foundation, Inc.

This file is part of GCC.

GCC 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 3, or (at your option)
any later version.

GCC 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 GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

extern int alpha_next_sequence_number;

extern void literal_section (void);
extern int zap_mask (HOST_WIDE_INT);
extern bool direct_return (void);

extern HOST_WIDE_INT alpha_initial_elimination_offset (unsigned int,
						       unsigned int);
extern void alpha_expand_prologue (void);
extern void alpha_expand_epilogue (void);
extern void alpha_output_filename (FILE *, const char *);

extern bool alpha_legitimate_constant_p (machine_mode, rtx);
extern rtx alpha_legitimize_reload_address (rtx, machine_mode,
					    int, int, int);

extern rtx split_small_symbolic_operand (rtx);

extern void get_aligned_mem (rtx, rtx *, rtx *);
extern rtx get_unaligned_address (rtx);
extern rtx get_unaligned_offset (rtx, HOST_WIDE_INT);
extern enum reg_class alpha_preferred_reload_class (rtx, enum reg_class);

extern void alpha_set_memflags (rtx, rtx);
extern bool alpha_split_const_mov (machine_mode, rtx *);
extern bool alpha_expand_mov (machine_mode, rtx *);
extern bool alpha_expand_mov_nobwx (machine_mode, rtx *);
extern void alpha_expand_movmisalign (machine_mode, rtx *);
extern void alpha_emit_floatuns (rtx[]);
extern rtx alpha_emit_conditional_move (rtx, machine_mode);
extern void alpha_split_tmode_pair (rtx[], machine_mode, bool);
extern void alpha_split_tfmode_frobsign (rtx[], rtx (*)(rtx, rtx, rtx));
extern void alpha_expand_unaligned_load (rtx, rtx, HOST_WIDE_INT,
					 HOST_WIDE_INT, int);
extern void alpha_expand_unaligned_store (rtx, rtx, HOST_WIDE_INT,
					  HOST_WIDE_INT);
extern int alpha_expand_block_move (rtx []);
extern int alpha_expand_block_clear (rtx []);
extern rtx alpha_expand_zap_mask (HOST_WIDE_INT);
extern void alpha_expand_builtin_vector_binop (rtx (*)(rtx, rtx, rtx),
					       machine_mode,
					       rtx, rtx, rtx);
extern void alpha_expand_builtin_establish_vms_condition_handler (rtx, rtx);
extern void alpha_expand_builtin_revert_vms_condition_handler (rtx);

extern rtx alpha_return_addr (int, rtx);
extern rtx alpha_gp_save_rtx (void);
extern void alpha_initialize_trampoline (rtx, rtx, rtx, int, int, int);

extern rtx alpha_va_arg (tree, tree);

extern void alpha_start_function (FILE *, const char *, tree);
extern void alpha_end_function (FILE *, const char *, tree);

extern bool alpha_find_lo_sum_using_gp (rtx);

#ifdef REAL_VALUE_TYPE
extern int check_float_value (machine_mode, REAL_VALUE_TYPE *, int);
#endif

#ifdef RTX_CODE
extern void alpha_emit_conditional_branch (rtx[], machine_mode);
extern bool alpha_emit_setcc (rtx[], machine_mode);
extern int alpha_split_conditional_move (enum rtx_code, rtx, rtx, rtx, rtx);
extern void alpha_emit_xfloating_arith (enum rtx_code, rtx[]);
extern void alpha_emit_xfloating_cvt (enum rtx_code, rtx[]);
extern void alpha_split_atomic_op (enum rtx_code, rtx, rtx, rtx, rtx, rtx,
				   enum memmodel);
extern void alpha_split_compare_and_swap (rtx op[]);
extern void alpha_expand_compare_and_swap_12 (rtx op[]);
extern void alpha_split_compare_and_swap_12 (rtx op[]);
extern void alpha_split_atomic_exchange (rtx op[]);
extern void alpha_expand_atomic_exchange_12 (rtx op[]);
extern void alpha_split_atomic_exchange_12 (rtx op[]);
#endif

extern rtx alpha_use_linkage (rtx, bool, bool);

#if TARGET_ABI_OPEN_VMS
extern enum avms_arg_type alpha_arg_type (machine_mode);
extern rtx alpha_arg_info_reg_val (CUMULATIVE_ARGS);
extern void avms_asm_output_external (FILE *, tree, const char *);
extern void vms_output_aligned_decl_common (FILE *, tree, const char *,
					    unsigned HOST_WIDE_INT,
					    unsigned int);
extern HOST_WIDE_INT alpha_vms_initial_elimination_offset (unsigned int,
							   unsigned int);
#endif

extern rtx unicosmk_add_call_info_word (rtx);

extern bool some_small_symbolic_operand_int (rtx);
extern int tls_symbolic_operand_1 (rtx, int, int);
extern rtx resolve_reload_operand (rtx);

namespace gcc { class context; }
class rtl_opt_pass;

extern rtl_opt_pass *make_pass_handle_trap_shadows (gcc::context *);
extern rtl_opt_pass *make_pass_align_insns (gcc::context *);