gcc/addresses.h

   1 /* Inline functions to test validity of reg classes for addressing modes.
   2    Copyright (C) 2006, 2007, 2010, 2011 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 static inline enum reg_class
  25 base_reg_class (enum machine_mode mode ATTRIBUTE_UNUSED,
  26                 addr_space_t as ATTRIBUTE_UNUSED,
  27                 enum rtx_code outer_code ATTRIBUTE_UNUSED,
  28                 enum rtx_code index_code ATTRIBUTE_UNUSED)
  29 {
  30 #ifdef MODE_CODE_BASE_REG_CLASS
  31   return MODE_CODE_BASE_REG_CLASS (mode, as, outer_code, index_code);
  32 #else
  33 #ifdef MODE_BASE_REG_REG_CLASS
  34   if (index_code == REG)
  35     return MODE_BASE_REG_REG_CLASS (mode);
  36 #endif
  37 #ifdef MODE_BASE_REG_CLASS
  38   return MODE_BASE_REG_CLASS (mode);
  39 #else
  40   return BASE_REG_CLASS;
  41 #endif
  42 #endif
  43 }
  44
  45 /* Wrapper function to unify target macros REGNO_MODE_CODE_OK_FOR_BASE_P,
  46    REGNO_MODE_OK_FOR_REG_BASE_P, REGNO_MODE_OK_FOR_BASE_P and
  47    REGNO_OK_FOR_BASE_P.
  48    Arguments as for the REGNO_MODE_CODE_OK_FOR_BASE_P macro.  */
  49
  50 static inline bool
  51 ok_for_base_p_1 (unsigned regno ATTRIBUTE_UNUSED,
  52                  enum machine_mode mode ATTRIBUTE_UNUSED,
  53                  addr_space_t as ATTRIBUTE_UNUSED,
  54                  enum rtx_code outer_code ATTRIBUTE_UNUSED,
  55                  enum rtx_code index_code ATTRIBUTE_UNUSED)
  56 {
  57 #ifdef REGNO_MODE_CODE_OK_FOR_BASE_P
  58   return REGNO_MODE_CODE_OK_FOR_BASE_P (regno, mode, as,
  59                                         outer_code, index_code);
  60 #else
  61 #ifdef REGNO_MODE_OK_FOR_REG_BASE_P
  62   if (index_code == REG)
  63     return REGNO_MODE_OK_FOR_REG_BASE_P (regno, mode);
  64 #endif
  65 #ifdef REGNO_MODE_OK_FOR_BASE_P
  66   return REGNO_MODE_OK_FOR_BASE_P (regno, mode);
  67 #else
  68   return REGNO_OK_FOR_BASE_P (regno);
  69 #endif
  70 #endif
  71 }
  72
  73 /* Wrapper around ok_for_base_p_1, for use after register allocation is
  74    complete.  Arguments as for the called function.  */
  75
  76 static inline bool
  77 regno_ok_for_base_p (unsigned regno, enum machine_mode mode, addr_space_t as,
  78                      enum rtx_code outer_code, enum rtx_code index_code)
  79 {
  80   if (regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] >= 0)
  81     regno = reg_renumber[regno];
  82
  83   return ok_for_base_p_1 (regno, mode, as, outer_code, index_code);
  84 }