gcc/config/cr16/cr16-protos.h

   1 /* Prototypes for exported functions defined in cr16.c
   2    Copyright (C) 2012-2018 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.  */