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1 /* Prototypes of target machine for GNU compiler for Xtensa.
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2 Copyright (C) 2001-2017 Free Software Foundation, Inc.
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3 Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it under
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8 the terms of the GNU General Public License as published by the Free
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9 Software Foundation; either version 3, or (at your option) any later
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10 version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #ifndef __XTENSA_PROTOS_H__
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22 #define __XTENSA_PROTOS_H__
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23
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24 /* Functions to test whether an immediate fits in a given field. */
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25 extern bool xtensa_simm8 (HOST_WIDE_INT);
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26 extern bool xtensa_simm8x256 (HOST_WIDE_INT);
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27 extern bool xtensa_simm12b (HOST_WIDE_INT);
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28 extern bool xtensa_b4const_or_zero (HOST_WIDE_INT);
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29 extern bool xtensa_b4constu (HOST_WIDE_INT);
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30 extern bool xtensa_mask_immediate (HOST_WIDE_INT);
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31 extern bool xtensa_mem_offset (unsigned, machine_mode);
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32
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33 /* Functions within xtensa.c that we reference. */
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34 #ifdef RTX_CODE
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35 extern int xt_true_regnum (rtx);
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36 extern int xtensa_valid_move (machine_mode, rtx *);
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37 extern int smalloffset_mem_p (rtx);
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38 extern int constantpool_mem_p (rtx);
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39 extern void xtensa_extend_reg (rtx, rtx);
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40 extern void xtensa_expand_conditional_branch (rtx *, machine_mode);
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41 extern int xtensa_expand_conditional_move (rtx *, int);
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42 extern int xtensa_expand_scc (rtx *, machine_mode);
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43 extern int xtensa_expand_block_move (rtx *);
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44 extern void xtensa_split_operand_pair (rtx *, machine_mode);
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45 extern int xtensa_emit_move_sequence (rtx *, machine_mode);
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46 extern rtx xtensa_copy_incoming_a7 (rtx);
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47 extern void xtensa_expand_nonlocal_goto (rtx *);
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48 extern void xtensa_expand_compare_and_swap (rtx, rtx, rtx, rtx);
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49 extern void xtensa_expand_atomic (enum rtx_code, rtx, rtx, rtx, bool);
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50 extern void xtensa_emit_loop_end (rtx_insn *, rtx *);
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51 extern char *xtensa_emit_branch (bool, bool, rtx *);
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52 extern char *xtensa_emit_bit_branch (bool, bool, rtx *);
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53 extern char *xtensa_emit_movcc (bool, bool, bool, rtx *);
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54 extern char *xtensa_emit_call (int, rtx *);
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55 extern bool xtensa_tls_referenced_p (rtx);
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56
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57 #ifdef TREE_CODE
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58 extern void init_cumulative_args (CUMULATIVE_ARGS *, int);
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59 #endif /* TREE_CODE */
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60
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61 extern void print_operand (FILE *, rtx, int);
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62 extern void print_operand_address (FILE *, rtx);
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63 extern void xtensa_output_literal (FILE *, rtx, machine_mode, int);
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64 extern void xtensa_set_return_address (rtx, rtx);
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65 extern rtx xtensa_return_addr (int, rtx);
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66 #endif /* RTX_CODE */
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67
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68 extern void xtensa_setup_frame_addresses (void);
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69 extern int xtensa_dbx_register_number (int);
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70 extern long compute_frame_size (int);
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71 extern bool xtensa_use_return_instruction_p (void);
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72 extern void xtensa_expand_prologue (void);
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73 extern void xtensa_expand_epilogue (void);
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74 extern void order_regs_for_local_alloc (void);
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75 extern enum reg_class xtensa_regno_to_class (int regno);
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76 extern HOST_WIDE_INT xtensa_initial_elimination_offset (int from, int to);
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77
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78 #endif /* !__XTENSA_PROTOS_H__ */
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