gcc/config/cr16/cr16-protos.h

   1 /* Prototypes for exported functions defined in cr16.c
   2    Copyright (C) 2012-2014 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 extern int cr16_hard_regno_mode_ok (int regno, enum machine_mode);
  27
  28 /* Passing function arguments.  */
  29 extern int cr16_function_arg_regno_p (int);
  30
  31 #ifdef TREE_CODE
  32 #ifdef RTX_CODE
  33
  34 extern void cr16_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx);
  35
  36 #endif /* RTX_CODE.  */
  37 #endif /* TREE_CODE.  */
  38
  39 /* Enumeration giving the various data models we support.  */
  40 enum data_model_type
  41 {
  42   DM_DEFAULT,           /* Default data model (in CR16C/C+ - up to 16M).  */
  43   DM_NEAR,              /* Near data model    (in CR16C/C+ - up to 1M).  */
  44   DM_FAR,               /* Far data model     (in CR16C+   - up to 4G)
  45                            (in CR16C    - up to 16M).  */
  46   ILLEGAL_DM            /* Illegal data model.  */
  47 };
  48
  49 #ifdef RTX_CODE
  50
  51 /* Addressing Modes.  */
  52 struct cr16_address
  53 {
  54   rtx base;             /* Base register: Any register or register pair.  */
  55   rtx index;            /* Index register: If one is present.  */
  56   rtx disp;             /* Displacement or Absolute address.  */
  57   enum data_model_type data;    /* data ref type.  */
  58   int code;             /* Whether the address is code address.
  59                            0 - data, 1 - code label, 2 - function label.  */
  60 };
  61
  62 enum cr16_addrtype
  63 {
  64   CR16_INVALID,
  65   CR16_REG_REL,
  66   CR16_REGP_REL,
  67   CR16_INDEX_REGP_REL,
  68   CR16_ABSOLUTE
  69 };
  70
  71 extern void notice_update_cc (rtx);
  72 extern int cr16_operand_bit_pos (int val, int bitval);
  73 extern void cr16_decompose_const (rtx x, int *code,
  74                                   enum data_model_type *data,
  75                                   bool treat_as_const);
  76 extern enum cr16_addrtype cr16_decompose_address (rtx addr,
  77                                                   struct cr16_address *out,
  78                                                   bool debug_print,
  79                                                   bool treat_as_const);
  80 extern int cr16_const_double_ok (rtx op);
  81 extern int legitimate_pic_operand_p (rtx);
  82 extern rtx legitimize_pic_address (rtx, enum machine_mode, rtx);
  83
  84
  85 /* Prologue/Epilogue functions.  */
  86 extern int cr16_initial_elimination_offset (int, int);
  87 extern char *cr16_prepare_push_pop_string (int);
  88 extern void cr16_expand_prologue (void);
  89 extern void cr16_expand_epilogue (void);
  90 extern const char *cr16_emit_add_sub_di (rtx *, enum rtx_code);
  91 extern const char *cr16_emit_logical_di (rtx *, enum rtx_code);
  92
  93 #endif /* RTX_CODE.  */
  94
  95 /* Handling the "interrupt" attribute.  */
  96 extern int cr16_interrupt_function_p (void);
  97 extern bool cr16_is_data_model (enum data_model_type);
  98
  99 #endif /* Not GCC_CR16_PROTOS_H.  */