gcc/addresses.h

   1 /* Inline functions to test validity of reg classes for addressing modes.
   2    Copyright (C) 2006-2023 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 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                 rtx_insn *insn ATTRIBUTE_UNUSED = NULL)
  33 {
  34 #ifdef INSN_BASE_REG_CLASS
  35   return INSN_BASE_REG_CLASS (insn);
  36 #else
  37 #ifdef MODE_CODE_BASE_REG_CLASS
  38   return MODE_CODE_BASE_REG_CLASS (MACRO_MODE (mode), as, outer_code,
  39                                    index_code);
  40 #else
  41 #ifdef MODE_BASE_REG_REG_CLASS
  42   if (index_code == REG)
  43     return MODE_BASE_REG_REG_CLASS (MACRO_MODE (mode));
  44 #endif
  45 #ifdef MODE_BASE_REG_CLASS
  46   return MODE_BASE_REG_CLASS (MACRO_MODE (mode));
  47 #else
  48   return BASE_REG_CLASS;
  49 #endif
  50 #endif
  51 #endif
  52 }
  53
  54 inline enum reg_class
  55 index_reg_class (rtx_insn *insn ATTRIBUTE_UNUSED = NULL)
  56 {
  57 #ifdef INSN_INDEX_REG_CLASS
  58   return INSN_INDEX_REG_CLASS (insn);
  59 #else
  60   return INDEX_REG_CLASS;
  61 #endif
  62 }
  63
  64 /* Wrapper function to unify target macros REGNO_MODE_CODE_OK_FOR_BASE_P,
  65    REGNO_MODE_OK_FOR_REG_BASE_P, REGNO_MODE_OK_FOR_BASE_P and
  66    REGNO_OK_FOR_BASE_P.
  67    Arguments as for the REGNO_MODE_CODE_OK_FOR_BASE_P macro.  */
  68
  69 inline bool
  70 ok_for_base_p_1 (unsigned regno ATTRIBUTE_UNUSED,
  71                  machine_mode mode ATTRIBUTE_UNUSED,
  72                  addr_space_t as ATTRIBUTE_UNUSED,
  73                  enum rtx_code outer_code ATTRIBUTE_UNUSED,
  74                  enum rtx_code index_code ATTRIBUTE_UNUSED,
  75                  rtx_insn* insn ATTRIBUTE_UNUSED = NULL)
  76 {
  77 #ifdef REGNO_OK_FOR_INSN_BASE_P
  78   return REGNO_OK_FOR_INSN_BASE_P (regno, insn);
  79 #else
  80 #ifdef REGNO_MODE_CODE_OK_FOR_BASE_P
  81   return REGNO_MODE_CODE_OK_FOR_BASE_P (regno, MACRO_MODE (mode), as,
  82                                         outer_code, index_code);
  83 #else
  84 #ifdef REGNO_MODE_OK_FOR_REG_BASE_P
  85   if (index_code == REG)
  86     return REGNO_MODE_OK_FOR_REG_BASE_P (regno, MACRO_MODE (mode));
  87 #endif
  88 #ifdef REGNO_MODE_OK_FOR_BASE_P
  89   return REGNO_MODE_OK_FOR_BASE_P (regno, MACRO_MODE (mode));
  90 #else
  91   return REGNO_OK_FOR_BASE_P (regno);
  92 #endif
  93 #endif
  94 #endif
  95 }
  96
  97 /* Wrapper around ok_for_base_p_1, for use after register allocation is
  98    complete.  Arguments as for the called function.  */
  99
 100 inline bool
 101 regno_ok_for_base_p (unsigned regno, machine_mode mode, addr_space_t as,
 102                      enum rtx_code outer_code, enum rtx_code index_code,
 103                      rtx_insn *insn = NULL)
 104 {
 105   if (regno >= FIRST_PSEUDO_REGISTER && reg_renumber[regno] >= 0)
 106     regno = reg_renumber[regno];
 107
 108   return ok_for_base_p_1 (regno, mode, as, outer_code, index_code, insn);
 109 }
 110
 111 #endif /* GCC_ADDRESSES_H */