gcc/addresses.h

   1 /* Inline functions to test validity of reg classes for addressing modes.
   2    Copyright (C) 2006-2017 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 /* Wrapper function to unify target macros MODE_CODE_BASE_REG_CLASS,
  21    MODE_BASE_REG_REG_CLASS, MODE_BASE_REG_CLASS and BASE_REG_CLASS.
  22    Arguments as for the MODE_CODE_BASE_REG_CLASS macro.  */
  23
  24 #ifndef GCC_ADDRESSES_H
  25 #define GCC_ADDRESSES_H
  26
  27 static inline enum reg_class
  28 base_reg_class (machine_mode mode ATTRIBUTE_UNUSED,
  29                 addr_space_t as ATTRIBUTE_UNUSED,
  30                 enum rtx_code outer_code ATTRIBUTE_UNUSED,
  31                 enum rtx_code index_code ATTRIBUTE_UNUSED)
  32 {
  33 #ifdef MODE_CODE_BASE_REG_CLASS
  34   return MODE_CODE_BASE_REG_CLASS (MACRO_MODE (mode), as, outer_code,
  35                                    index_code);
  36 #else
  37 #ifdef MODE_BASE_REG_REG_CLASS
  38   if (index_code == REG)
  39     return MODE_BASE_REG_REG_CLASS (MACRO_MODE (mode));
  40 #endif
  41 #ifdef MODE_BASE_REG_CLASS
  42   return MODE_BASE_REG_CLASS (MACRO_MODE (mode));
  43 #else
  44   return BASE_REG_CLASS;
  45 #endif
  46 #endif
  47 }
  48
  49 /* Wrapper function to unify target macros REGNO_MODE_CODE_OK_FOR_BASE_P,
  50    REGNO_MODE_OK_FOR_REG_BASE_P, REGNO_MODE_OK_FOR_BASE_P and
  51    REGNO_OK_FOR_BASE_P.
  52    Arguments as for the REGNO_MODE_CODE_OK_FOR_BASE_P macro.  */
  53
  54 static inline bool
  55 ok_for_base_p_1 (unsigned regno ATTRIBUTE_UNUSED,
  56                  machine_mode mode ATTRIBUTE_UNUSED,
  57                  addr_space_t as ATTRIBUTE_UNUSED,
  58                  enum rtx_code outer_code ATTRIBUTE_UNUSED,
  59                  enum rtx_code index_code ATTRIBUTE_UNUSED)
  60 {
  61 #ifdef REGNO_MODE_CODE_OK_FOR_BASE_P
  62   return REGNO_MODE_CODE_OK_FOR_BASE_P (regno, MACRO_MODE (mode), as,
  63                                         outer_code, index_code);
  64 #else
  65 #ifdef REGNO_MODE_OK_FOR_REG_BASE_P
  66   if (index_code == REG)
  67     return REGNO_MODE_OK_FOR_REG_BASE_P (regno, MACRO_MODE (mode));
  68 #endif
  69 #ifdef REGNO_MODE_OK_FOR_BASE_P
  70   return REGNO_MODE_OK_FOR_BASE_P (regno, MACRO_MODE (mode));
  71 #else
  72   return REGNO_OK_FOR_BASE_P (regno);
  73 #endif
  74 #endif
  75 }
  76
  77 /* Wrapper around ok_for_base_p_1, for use after register allocation is
  78    complete.  Arguments as for the called function.  */
  79
  80 static inline bool
  81 regno_ok_for_base_p (unsigned regno, machine_mode mode, addr_space_t as,
  82                      enum rtx_code outer_code, enum rtx_code index_code)
  83 {
  84   if (regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] >= 0)
  85     regno = reg_renumber[regno];
  86
  87   return ok_for_base_p_1 (regno, mode, as, outer_code, index_code);
  88 }
  89
  90 #endif /* GCC_ADDRESSES_H */