1  /* Subroutine declarations for Altera Nios II target support.
       2     Copyright (C) 2012-2023 Free Software Foundation, Inc.
       3     Contributed by Jonah Graham (jgraham@altera.com).
       4     Contributed by Mentor Graphics, Inc.
       5  
       6     This file is part of GCC.
       7  
       8     GCC is free software; you can redistribute it and/or modify it
       9     under the terms of the GNU General Public License as published
      10     by the Free Software Foundation; either version 3, or (at your
      11     option) any later version.
      12  
      13     GCC is distributed in the hope that it will be useful, but WITHOUT
      14     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
      15     or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
      16     License for more details.
      17  
      18     You should have received a copy of the GNU General Public License
      19     along with GCC; see the file COPYING3.  If not see
      20     <http://www.gnu.org/licenses/>.  */
      21  
      22  #ifndef GCC_NIOS2_PROTOS_H
      23  #define GCC_NIOS2_PROTOS_H
      24  
      25  extern int nios2_initial_elimination_offset (int, int);
      26  extern int nios2_can_use_return_insn (void);
      27  extern void nios2_expand_prologue (void);
      28  extern void nios2_expand_epilogue (bool);
      29  extern bool nios2_expand_return (void);
      30  extern void nios2_function_profiler (FILE *, int);
      31  extern bool nios2_fpu_insn_enabled (enum n2fpu_code);
      32  
      33  #ifdef RTX_CODE
      34  extern bool nios2_large_constant_p (rtx);
      35  extern bool nios2_large_constant_memory_operand_p (rtx);
      36  
      37  extern rtx nios2_split_large_constant (rtx, rtx);
      38  extern rtx nios2_split_large_constant_memory_operand (rtx);
      39  extern bool nios2_emit_move_sequence (rtx *, machine_mode);
      40  extern void nios2_emit_expensive_div (rtx *, machine_mode);
      41  extern void nios2_adjust_call_address (rtx *, rtx);
      42  
      43  extern rtx nios2_get_return_address (int);
      44  extern void nios2_set_return_address (rtx, rtx);
      45  
      46  extern bool nios2_validate_compare (machine_mode, rtx *, rtx *, rtx *);
      47  extern bool nios2_validate_fpu_compare (machine_mode, rtx *, rtx *, rtx *,
      48  					bool);
      49  
      50  extern const char * nios2_fpu_insn_asm (enum n2fpu_code);
      51  extern const char * nios2_add_insn_asm (rtx_insn *, rtx *);
      52  
      53  extern bool nios2_legitimate_pic_operand_p (rtx);
      54  extern bool gprel_constant_p (rtx);
      55  extern bool r0rel_constant_p (rtx);
      56  extern bool nios2_regno_ok_for_base_p (int, bool);
      57  extern bool nios2_unspec_reloc_p (rtx);
      58  
      59  extern int nios2_label_align (rtx);
      60  extern bool nios2_cdx_narrow_form_p (rtx_insn *);
      61  
      62  extern bool pop_operation_p (rtx);
      63  extern bool ldstwm_operation_p (rtx, bool);
      64  extern bool gen_ldstwm_peep (bool, int, rtx, rtx *);
      65  
      66  extern void nios2_adjust_reg_alloc_order (void);
      67  
      68  extern pad_direction nios2_block_reg_padding (machine_mode, tree, int);
      69  
      70  #endif /* RTX_CODE */
      71  
      72  #endif /* GCC_NIOS2_PROTOS_H */