1 /* finite(). PowerPC32/POWER7 version.
2 Copyright (C) 2010 Free Software Foundation, Inc.
3 Contributed by Luis Machado <luisgpm@br.ibm.com>.
4 This file is part of the GNU C Library.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library 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 GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 #include <math_ldbl_opt.h>
25 .section .rodata.cst8,"aM",@progbits,8
28 .quad 0x3ff0000000000000
31 .type __finite, @function
40 addis r9,r9,.LC0-1b@ha
53 /* We have -INF/+INF/NaN or a denormal. */
55 stwu r1,-16(r1) /* Allocate stack space. */
56 stfd fp1,8(r1) /* Transfer FP to GPR's. */
58 ori 2,2,0 /* Force a new dispatch group. */
59 lhz r0,8(r1) /* Fetch the upper portion of the high word of
60 the FP value (where the exponent and sign bits
62 clrlwi r0,r0,17 /* r0 = abs(r0). */
63 addi r1,r1,16 /* Reset the stack pointer. */
64 cmpwi cr7,r0,0x7ff0 /* r4 == 0x7ff0?. */
65 bltlr cr7 /* LT means we have a denormal. */
71 weak_alias (__finite, finite)
73 /* It turns out that the 'double' version will also always work for
75 strong_alias (__finite, __finitef)
76 hidden_def (__finitef)
77 weak_alias (__finitef, finitef)
80 strong_alias (__finite, __finitel)
81 weak_alias (__finite, finitel)
85 # if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
86 compat_symbol (libc, __finite, __finitel, GLIBC_2_0);
87 compat_symbol (libc, finite, finitel, GLIBC_2_0);