1 /* Subroutine declarations for Altera Nios II target support. 2 Copyright (C) 2012-2018 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 32 #ifdef RTX_CODE 33 extern bool nios2_large_constant_p (rtx); 34 extern bool nios2_large_constant_memory_operand_p (rtx); 35 36 extern rtx nios2_split_large_constant (rtx, rtx); 37 extern rtx nios2_split_large_constant_memory_operand (rtx); 38 extern bool nios2_emit_move_sequence (rtx *, machine_mode); 39 extern void nios2_emit_expensive_div (rtx *, machine_mode); 40 extern void nios2_adjust_call_address (rtx *, rtx); 41 42 extern rtx nios2_get_return_address (int); 43 extern void nios2_set_return_address (rtx, rtx); 44 45 extern bool nios2_validate_compare (machine_mode, rtx *, rtx *, rtx *); 46 extern bool nios2_validate_fpu_compare (machine_mode, rtx *, rtx *, rtx *, 47 bool); 48 49 extern bool nios2_fpu_insn_enabled (enum n2fpu_code); 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 */ 73