[AArch64] PR target/68129: Define TARGET_SUPPORTS_WIDE_INT
[official-gcc.git] / gcc / wide-int-print.cc
blob8fd271321c273a6e5e7573e37b0afb0423640cec
1 /* Printing operations with very long integers.
2 Copyright (C) 2012-2015 Free Software Foundation, Inc.
3 Contributed by Kenneth Zadeck <zadeck@naturalbridge.com>
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3, or (at your option) any
10 later version.
12 GCC is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
21 #include "config.h"
22 #include "system.h"
23 #include "coretypes.h"
24 #include "wide-int-print.h"
27 * public printing routines.
30 #define BLOCKS_NEEDED(PREC) \
31 (((PREC) + HOST_BITS_PER_WIDE_INT - 1) / HOST_BITS_PER_WIDE_INT)
33 void
34 print_dec (const wide_int_ref &wi, char *buf, signop sgn)
36 if (sgn == SIGNED)
37 print_decs (wi, buf);
38 else
39 print_decu (wi, buf);
42 void
43 print_dec (const wide_int_ref &wi, FILE *file, signop sgn)
45 if (sgn == SIGNED)
46 print_decs (wi, file);
47 else
48 print_decu (wi, file);
52 /* Try to print the signed self in decimal to BUF if the number fits
53 in a HWI. Other print in hex. */
55 void
56 print_decs (const wide_int_ref &wi, char *buf)
58 if ((wi.get_precision () <= HOST_BITS_PER_WIDE_INT)
59 || (wi.get_len () == 1))
61 if (wi::neg_p (wi))
62 sprintf (buf, "-" HOST_WIDE_INT_PRINT_UNSIGNED,
63 -(unsigned HOST_WIDE_INT) wi.to_shwi ());
64 else
65 sprintf (buf, HOST_WIDE_INT_PRINT_DEC, wi.to_shwi ());
67 else
68 print_hex (wi, buf);
71 /* Try to print the signed self in decimal to FILE if the number fits
72 in a HWI. Other print in hex. */
74 void
75 print_decs (const wide_int_ref &wi, FILE *file)
77 char buf[WIDE_INT_PRINT_BUFFER_SIZE];
78 print_decs (wi, buf);
79 fputs (buf, file);
82 /* Try to print the unsigned self in decimal to BUF if the number fits
83 in a HWI. Other print in hex. */
85 void
86 print_decu (const wide_int_ref &wi, char *buf)
88 if ((wi.get_precision () <= HOST_BITS_PER_WIDE_INT)
89 || (wi.get_len () == 1 && !wi::neg_p (wi)))
90 sprintf (buf, HOST_WIDE_INT_PRINT_UNSIGNED, wi.to_uhwi ());
91 else
92 print_hex (wi, buf);
95 /* Try to print the signed self in decimal to FILE if the number fits
96 in a HWI. Other print in hex. */
98 void
99 print_decu (const wide_int_ref &wi, FILE *file)
101 char buf[WIDE_INT_PRINT_BUFFER_SIZE];
102 print_decu (wi, buf);
103 fputs (buf, file);
106 void
107 print_hex (const wide_int_ref &wi, char *buf)
109 int i = wi.get_len ();
111 if (wi == 0)
112 buf += sprintf (buf, "0x0");
113 else
115 if (wi::neg_p (wi))
117 int j;
118 /* If the number is negative, we may need to pad value with
119 0xFFF... because the leading elements may be missing and
120 we do not print a '-' with hex. */
121 buf += sprintf (buf, "0x");
122 for (j = BLOCKS_NEEDED (wi.get_precision ()); j > i; j--)
123 buf += sprintf (buf, HOST_WIDE_INT_PRINT_PADDED_HEX, (HOST_WIDE_INT) -1);
126 else
127 buf += sprintf (buf, "0x" HOST_WIDE_INT_PRINT_HEX_PURE, wi.elt (--i));
129 while (--i >= 0)
130 buf += sprintf (buf, HOST_WIDE_INT_PRINT_PADDED_HEX, wi.elt (i));
134 /* Print one big hex number to FILE. Note that some assemblers may not
135 accept this for large modes. */
136 void
137 print_hex (const wide_int_ref &wi, FILE *file)
139 char buf[WIDE_INT_PRINT_BUFFER_SIZE];
140 print_hex (wi, buf);
141 fputs (buf, file);