GCC Middle and Back End API Reference
rtlhooks-def.h
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1 /* Default macros to initialize an rtl_hooks data structure.
2  Copyright (C) 2004-2013 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 (enum machine_mode, rtx);
41 extern rtx reg_nonzero_bits_general (const_rtx, enum machine_mode, const_rtx,
42  enum machine_mode,
43  unsigned HOST_WIDE_INT,
44  unsigned HOST_WIDE_INT *);
45 extern rtx reg_num_sign_bit_copies_general (const_rtx, enum machine_mode, const_rtx,
46  enum machine_mode,
47  unsigned int, unsigned int *);
48 extern bool reg_truncated_to_mode_general (enum machine_mode, const_rtx);
49 
50 #endif /* GCC_RTL_HOOKS_DEF_H */