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 (mode, as, outer_code, index_code);
  35 #else
  36 #ifdef MODE_BASE_REG_REG_CLASS
  37   if (index_code == REG)
  38     return MODE_BASE_REG_REG_CLASS (mode);
  39 #endif
  40 #ifdef MODE_BASE_REG_CLASS
  41   return MODE_BASE_REG_CLASS (mode);
  42 #else
  43   return BASE_REG_CLASS;
  44 #endif
  45 #endif
  46 }
  47
  48 /* Wrapper function to unify target macros REGNO_MODE_CODE_OK_FOR_BASE_P,
  49    REGNO_MODE_OK_FOR_REG_BASE_P, REGNO_MODE_OK_FOR_BASE_P and
  50    REGNO_OK_FOR_BASE_P.
  51    Arguments as for the REGNO_MODE_CODE_OK_FOR_BASE_P macro.  */
  52
  53 static inline bool
  54 ok_for_base_p_1 (unsigned regno ATTRIBUTE_UNUSED,
  55                  machine_mode mode ATTRIBUTE_UNUSED,
  56                  addr_space_t as ATTRIBUTE_UNUSED,
  57                  enum rtx_code outer_code ATTRIBUTE_UNUSED,
  58                  enum rtx_code index_code ATTRIBUTE_UNUSED)
  59 {
  60 #ifdef REGNO_MODE_CODE_OK_FOR_BASE_P
  61   return REGNO_MODE_CODE_OK_FOR_BASE_P (regno, mode, as,
  62                                         outer_code, index_code);
  63 #else
  64 #ifdef REGNO_MODE_OK_FOR_REG_BASE_P
  65   if (index_code == REG)
  66     return REGNO_MODE_OK_FOR_REG_BASE_P (regno, mode);
  67 #endif
  68 #ifdef REGNO_MODE_OK_FOR_BASE_P
  69   return REGNO_MODE_OK_FOR_BASE_P (regno, mode);
  70 #else
  71   return REGNO_OK_FOR_BASE_P (regno);
  72 #endif
  73 #endif
  74 }
  75
  76 /* Wrapper around ok_for_base_p_1, for use after register allocation is
  77    complete.  Arguments as for the called function.  */
  78
  79 static inline bool
  80 regno_ok_for_base_p (unsigned regno, machine_mode mode, addr_space_t as,
  81                      enum rtx_code outer_code, enum rtx_code index_code)
  82 {
  83   if (regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] >= 0)
  84     regno = reg_renumber[regno];
  85
  86   return ok_for_base_p_1 (regno, mode, as, outer_code, index_code);
  87 }
  88
  89 #endif /* GCC_ADDRESSES_H */