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/* Prototypes of target machine for GNU compiler for Xtensa.
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Copyright 2001, 2002, 2003, 2004, 2005, 2007
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Free Software Foundation, Inc.
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Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef __XTENSA_PROTOS_H__
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#define __XTENSA_PROTOS_H__
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/* Functions to test whether an immediate fits in a given field. */
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extern bool xtensa_simm8 (HOST_WIDE_INT);
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extern bool xtensa_simm8x256 (HOST_WIDE_INT);
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extern bool xtensa_simm12b (HOST_WIDE_INT);
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extern bool xtensa_b4const_or_zero (HOST_WIDE_INT);
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extern bool xtensa_b4constu (HOST_WIDE_INT);
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extern bool xtensa_mask_immediate (HOST_WIDE_INT);
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extern bool xtensa_const_ok_for_letter_p (HOST_WIDE_INT, int);
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extern bool xtensa_mem_offset (unsigned, enum machine_mode);
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/* Functions within xtensa.c that we reference. */
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#ifdef RTX_CODE
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extern int xt_true_regnum (rtx);
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extern int xtensa_valid_move (enum machine_mode, rtx *);
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extern int smalloffset_mem_p (rtx);
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extern int constantpool_address_p (rtx);
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extern int constantpool_mem_p (rtx);
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extern void xtensa_extend_reg (rtx, rtx);
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extern bool xtensa_extra_constraint (rtx, int);
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extern void xtensa_expand_conditional_branch (rtx *, enum rtx_code);
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extern int xtensa_expand_conditional_move (rtx *, int);
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extern int xtensa_expand_scc (rtx *);
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extern int xtensa_expand_block_move (rtx *);
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extern void xtensa_split_operand_pair (rtx *, enum machine_mode);
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extern int xtensa_emit_move_sequence (rtx *, enum machine_mode);
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extern rtx xtensa_copy_incoming_a7 (rtx);
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extern void xtensa_expand_nonlocal_goto (rtx *);
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extern void xtensa_emit_loop_end (rtx, rtx *);
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extern char *xtensa_emit_call (int, rtx *);
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#ifdef TREE_CODE
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extern void init_cumulative_args (CUMULATIVE_ARGS *, int);
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extern void xtensa_va_start (tree, rtx);
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#endif /* TREE_CODE */
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extern void print_operand (FILE *, rtx, int);
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extern void print_operand_address (FILE *, rtx);
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extern void xtensa_output_literal (FILE *, rtx, enum machine_mode, int);
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extern rtx xtensa_return_addr (int, rtx);
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extern enum reg_class xtensa_preferred_reload_class (rtx, enum reg_class, int);
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extern enum reg_class xtensa_secondary_reload_class (enum reg_class,
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enum machine_mode, rtx,
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int);
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#endif /* RTX_CODE */
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#ifdef TREE_CODE
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extern void function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode, tree);
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extern struct rtx_def *function_arg (CUMULATIVE_ARGS *, enum machine_mode,
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tree, int);
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#endif /* TREE_CODE */
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extern void xtensa_setup_frame_addresses (void);
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extern int xtensa_dbx_register_number (int);
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extern void override_options (void);
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extern long compute_frame_size (int);
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extern int xtensa_frame_pointer_required (void);
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extern void xtensa_expand_prologue (void);
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extern void order_regs_for_local_alloc (void);
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#endif /* !__XTENSA_PROTOS_H__ */
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