gcc/config/xtensa/xtensa-protos.h

   1 /* Prototypes of target machine for GNU compiler for Xtensa.
   2    Copyright (C) 2001-2023 Free Software Foundation, Inc.
   3    Contributed by Bob Wilson (bwilson@tensilica.com) at Tensilica.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef __XTENSA_PROTOS_H__
  22 #define __XTENSA_PROTOS_H__
  23
  24 /* Functions to test whether an immediate fits in a given field.  */
  25 extern bool xtensa_simm8 (HOST_WIDE_INT);
  26 extern bool xtensa_simm8x256 (HOST_WIDE_INT);
  27 extern bool xtensa_simm12b (HOST_WIDE_INT);
  28 extern bool xtensa_b4const_or_zero (HOST_WIDE_INT);
  29 extern bool xtensa_b4constu (HOST_WIDE_INT);
  30 extern bool xtensa_mask_immediate (HOST_WIDE_INT);
  31 extern bool xtensa_mem_offset (unsigned, machine_mode);
  32
  33 /* Functions within xtensa.cc that we reference.  */
  34 #ifdef RTX_CODE
  35 extern int xt_true_regnum (rtx);
  36 extern int xtensa_valid_move (machine_mode, rtx *);
  37 extern int smalloffset_mem_p (rtx);
  38 extern int constantpool_mem_p (rtx);
  39 extern void xtensa_extend_reg (rtx, rtx);
  40 extern void xtensa_expand_conditional_branch (rtx *, machine_mode);
  41 extern int xtensa_expand_conditional_move (rtx *, int);
  42 extern int xtensa_expand_scc (rtx *, machine_mode);
  43 extern int xtensa_expand_block_move (rtx *);
  44 extern int xtensa_expand_block_set_unrolled_loop (rtx *);
  45 extern int xtensa_expand_block_set_small_loop (rtx *);
  46 extern void xtensa_split_operand_pair (rtx *, machine_mode);
  47 extern int xtensa_constantsynth (rtx, HOST_WIDE_INT);
  48 extern int xtensa_emit_move_sequence (rtx *, machine_mode);
  49 extern rtx xtensa_copy_incoming_a7 (rtx);
  50 extern void xtensa_expand_nonlocal_goto (rtx *);
  51 extern void xtensa_expand_compare_and_swap (rtx, rtx, rtx, rtx);
  52 extern void xtensa_expand_atomic (enum rtx_code, rtx, rtx, rtx, bool);
  53 extern void xtensa_emit_loop_end (rtx_insn *, rtx *);
  54 extern char *xtensa_emit_branch (bool, rtx *);
  55 extern char *xtensa_emit_movcc (bool, bool, bool, rtx *);
  56 extern void xtensa_prepare_expand_call (int, rtx *);
  57 extern char *xtensa_emit_call (int, rtx *);
  58 extern char *xtensa_emit_sibcall (int, rtx *);
  59 extern bool xtensa_tls_referenced_p (rtx);
  60 extern enum rtx_code xtensa_shlrd_which_direction (rtx, rtx);
  61 extern bool xtensa_split1_finished_p (void);
  62 extern void xtensa_split_DI_reg_imm (rtx *);
  63
  64 #ifdef TREE_CODE
  65 extern void init_cumulative_args (CUMULATIVE_ARGS *, int);
  66 #endif /* TREE_CODE */
  67
  68 extern void print_operand (FILE *, rtx, int);
  69 extern void print_operand_address (FILE *, rtx);
  70 extern void xtensa_output_literal (FILE *, rtx, machine_mode, int);
  71 extern void xtensa_set_return_address (rtx, rtx);
  72 extern rtx xtensa_return_addr (int, rtx);
  73 #endif /* RTX_CODE */
  74
  75 extern void xtensa_setup_frame_addresses (void);
  76 extern int xtensa_debugger_regno (int);
  77 extern long compute_frame_size (poly_int64);
  78 extern bool xtensa_use_return_instruction_p (void);
  79 extern void xtensa_expand_prologue (void);
  80 extern void xtensa_expand_epilogue (bool);
  81 extern void xtensa_adjust_reg_alloc_order (void);
  82 extern enum reg_class xtensa_regno_to_class (int regno);
  83 extern HOST_WIDE_INT xtensa_initial_elimination_offset (int from, int to);
  84 extern const char **xtensa_get_config_strings (void);
  85
  86 #endif /* !__XTENSA_PROTOS_H__ */