gcc/rtlhooks-def.h

   1 /* Default macros to initialize an rtl_hooks data structure.
   2    Copyright (C) 2004-2020 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
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License 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 #ifndef GCC_RTL_HOOKS_DEF_H
  21 #define GCC_RTL_HOOKS_DEF_H
  22
  23 #include "rtl.h"
  24
  25 #define RTL_HOOKS_GEN_LOWPART gen_lowpart_general
  26 #define RTL_HOOKS_GEN_LOWPART_NO_EMIT gen_lowpart_if_possible
  27 #define RTL_HOOKS_REG_NONZERO_REG_BITS reg_nonzero_bits_general
  28 #define RTL_HOOKS_REG_NUM_SIGN_BIT_COPIES reg_num_sign_bit_copies_general
  29 #define RTL_HOOKS_REG_TRUNCATED_TO_MODE reg_truncated_to_mode_general
  30
  31 /* The structure is defined in rtl.h.  */
  32 #define RTL_HOOKS_INITIALIZER {                 \
  33   RTL_HOOKS_GEN_LOWPART,                        \
  34   RTL_HOOKS_GEN_LOWPART_NO_EMIT,                \
  35   RTL_HOOKS_REG_NONZERO_REG_BITS,               \
  36   RTL_HOOKS_REG_NUM_SIGN_BIT_COPIES,            \
  37   RTL_HOOKS_REG_TRUNCATED_TO_MODE               \
  38 }
  39
  40 extern rtx gen_lowpart_general (machine_mode, rtx);
  41 extern rtx reg_nonzero_bits_general (const_rtx, scalar_int_mode,
  42                                      scalar_int_mode,
  43                                      unsigned HOST_WIDE_INT *);
  44 extern rtx reg_num_sign_bit_copies_general (const_rtx, scalar_int_mode,
  45                                             scalar_int_mode, unsigned int *);
  46 extern bool reg_truncated_to_mode_general (machine_mode, const_rtx);
  47
  48 #endif /* GCC_RTL_HOOKS_DEF_H */