blob: 13f76d64a2bd115590ca43e8e47e150c8d20efc3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/* Functions for Linux on PowerPC.
Copyright (C) 2013-2024 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#define IN_TARGET_CODE 1
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "target.h"
#include "targhooks.h"
#include "tree.h"
#include "case-cfn-macros.h"
/* Implement TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P. */
bool
rs6000_linux_float_exceptions_rounding_supported_p (void)
{
/* glibc has support for exceptions and rounding modes for software
floating point. */
if (OPTION_GLIBC)
return true;
else
return TARGET_HARD_FLOAT;
}
/* Implement TARGET_LIBM_FUNCTION_MAX_ERROR. */
unsigned
rs6000_linux_libm_function_max_error (unsigned cfn, machine_mode mode,
bool boundary_p)
{
if (OPTION_GLIBC)
{
int rnd = flag_rounding_math ? 4 : 0;
switch (cfn)
{
CASE_CFN_SQRT:
CASE_CFN_SQRT_FN:
if (!boundary_p && MODE_COMPOSITE_P (mode))
return 1 + rnd;
break;
CASE_CFN_COS:
CASE_CFN_COS_FN:
if (!boundary_p && mode == SFmode)
return 3 + rnd;
if (!boundary_p && MODE_COMPOSITE_P (mode))
return 4 + rnd;
break;
CASE_CFN_SIN:
CASE_CFN_SIN_FN:
if (!boundary_p && MODE_COMPOSITE_P (mode))
return 1 + rnd;
break;
default:
break;
}
return glibc_linux_libm_function_max_error (cfn, mode, boundary_p);
}
return default_libm_function_max_error (cfn, mode, boundary_p);
}
|
