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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/* finite(). PowerPC32/POWER7 version.
Copyright (C) 2010-2016 Free Software Foundation, Inc.
Contributed by Luis Machado <luisgpm@br.ibm.com>.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <math_ldbl_opt.h>
/* int __finite(x) */
.section .rodata.cst8,"aM",@progbits,8
.align 3
.LC0: /* 1.0 */
.quad 0x3ff0000000000000
.section ".text"
.type __finite, @function
.machine power7
ENTRY (__finite)
#ifdef SHARED
mflr r11
cfi_register(lr,r11)
SETUP_GOT_ACCESS(r9,got_label)
addis r9,r9,.LC0-got_label@ha
lfd fp0,.LC0-got_label@l(r9)
mtlr r11
cfi_same_value (lr)
#else
lis r9,.LC0@ha
lfd fp0,.LC0@l(r9)
#endif
ftdiv cr7,fp1,fp0
li r3,1
bflr 30
/* We have -INF/+INF/NaN or a denormal. */
stwu r1,-16(r1) /* Allocate stack space. */
stfd fp1,8(r1) /* Transfer FP to GPR's. */
ori 2,2,0 /* Force a new dispatch group. */
lhz r0,8+HISHORT(r1) /* Fetch the upper 16 bits of the FP value
(biased exponent and sign bit). */
clrlwi r0,r0,17 /* r0 = abs(r0). */
addi r1,r1,16 /* Reset the stack pointer. */
cmpwi cr7,r0,0x7ff0 /* r4 == 0x7ff0?. */
bltlr cr7 /* LT means we have a denormal. */
li r3,0
blr
END (__finite)
hidden_def (__finite)
weak_alias (__finite, finite)
/* It turns out that the 'double' version will also always work for
single-precision. */
strong_alias (__finite, __finitef)
hidden_def (__finitef)
weak_alias (__finitef, finitef)
#ifdef NO_LONG_DOUBLE
strong_alias (__finite, __finitel)
weak_alias (__finite, finitel)
#endif
#if IS_IN (libm)
# if LONG_DOUBLE_COMPAT (libm, GLIBC_2_0)
compat_symbol (libm, finite, finitel, GLIBC_2_0)
# endif
# if LONG_DOUBLE_COMPAT (libm, GLIBC_2_1)
compat_symbol (libm, __finite, __finitel, GLIBC_2_1)
# endif
#else
# if LONG_DOUBLE_COMPAT (libc, GLIBC_2_0)
compat_symbol (libc, __finite, __finitel, GLIBC_2_0);
compat_symbol (libc, finite, finitel, GLIBC_2_0);
# endif
#endif
|
