1 /* Prototypes for exported functions defined in cr16.c 2 Copyright (C) 2012-2020 Free Software Foundation, Inc. 3 Contributed by KPIT Cummins Infosystems Limited. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it 8 under the terms of the GNU General Public License as published 9 by the Free Software Foundation; either version 3, or (at your 10 option) any later version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15 License 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 GCC_CR16_PROTOS_H 22 #define GCC_CR16_PROTOS_H 23 24 /* Register usage. */ 25 extern enum reg_class cr16_regno_reg_class (int); 26 27 /* Passing function arguments. */ 28 extern int cr16_function_arg_regno_p (int); 29 30 #ifdef TREE_CODE 31 #ifdef RTX_CODE 32 33 extern void cr16_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx); 34 35 #endif /* RTX_CODE. */ 36 #endif /* TREE_CODE. */ 37 38 /* Enumeration giving the various data models we support. */ 39 enum data_model_type 40 { 41 DM_DEFAULT, /* Default data model (in CR16C/C+ - up to 16M). */ 42 DM_NEAR, /* Near data model (in CR16C/C+ - up to 1M). */ 43 DM_FAR, /* Far data model (in CR16C+ - up to 4G) 44 (in CR16C - up to 16M). */ 45 ILLEGAL_DM /* Illegal data model. */ 46 }; 47 48 #ifdef RTX_CODE 49 50 /* Addressing Modes. */ 51 struct cr16_address 52 { 53 rtx base; /* Base register: Any register or register pair. */ 54 rtx index; /* Index register: If one is present. */ 55 rtx disp; /* Displacement or Absolute address. */ 56 enum data_model_type data; /* data ref type. */ 57 int code; /* Whether the address is code address. 58 0 - data, 1 - code label, 2 - function label. */ 59 }; 60 61 enum cr16_addrtype 62 { 63 CR16_INVALID, 64 CR16_REG_REL, 65 CR16_REGP_REL, 66 CR16_INDEX_REGP_REL, 67 CR16_ABSOLUTE 68 }; 69 70 extern void notice_update_cc (rtx); 71 extern int cr16_operand_bit_pos (int val, int bitval); 72 extern void cr16_decompose_const (rtx x, int *code, 73 enum data_model_type *data, 74 bool treat_as_const); 75 extern enum cr16_addrtype cr16_decompose_address (rtx addr, 76 struct cr16_address *out, 77 bool debug_print, 78 bool treat_as_const); 79 extern int cr16_const_double_ok (rtx op); 80 extern int legitimate_pic_operand_p (rtx); 81 extern rtx legitimize_pic_address (rtx, machine_mode, rtx); 82 83 84 /* Prologue/Epilogue functions. */ 85 extern int cr16_initial_elimination_offset (int, int); 86 extern char *cr16_prepare_push_pop_string (int); 87 extern void cr16_expand_prologue (void); 88 extern void cr16_expand_epilogue (void); 89 extern const char *cr16_emit_add_sub_di (rtx *, enum rtx_code); 90 extern const char *cr16_emit_logical_di (rtx *, enum rtx_code); 91 92 #endif /* RTX_CODE. */ 93 94 /* Handling the "interrupt" attribute. */ 95 extern int cr16_interrupt_function_p (void); 96 extern bool cr16_is_data_model (enum data_model_type); 97 extern poly_int64 cr16_push_rounding (poly_int64); 98 99 #endif /* Not GCC_CR16_PROTOS_H. */ 100