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4399b163 | 1 | /* roundevenl() - S390 version. |
d614a753 | 2 | Copyright (C) 2019-2020 Free Software Foundation, Inc. |
4399b163 SL |
3 | |
4 | This file is part of the GNU C Library. | |
5 | ||
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 License as | |
8 | published by the Free Software Foundation; either version 2.1 of the | |
9 | License, or (at your option) any later version. | |
10 | ||
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. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
17 | License along with the GNU C Library; if not, see | |
18 | <https://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #ifdef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT | |
21 | # include <math.h> | |
22 | # include <math_private.h> | |
23 | # include <libm-alias-ldouble.h> | |
24 | ||
25 | _Float128 | |
26 | __roundevenl (_Float128 x) | |
27 | { | |
28 | _Float128 y; | |
29 | /* The z196 zarch "load fp integer" (fixbra) instruction is rounding | |
30 | x to the nearest integer with "ties to even" rounding mode | |
31 | (M3-field: 4) where inexact exceptions are suppressed (M4-field: 4). */ | |
32 | __asm__ ("fixbra %0,4,%1,4" : "=f" (y) : "f" (x)); | |
33 | return y; | |
34 | } | |
35 | libm_alias_ldouble (__roundeven, roundeven) | |
36 | ||
37 | #else | |
38 | # include <sysdeps/ieee754/ldbl-128/s_roundevenl.c> | |
39 | #endif |