1 /* float Floor function. PowerPC32 version.
2 Copyright (C) 2004-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
21 .section .rodata.cst4,"aM",@progbits,4
31 SETUP_GOT_ACCESS(r9,got_label)
32 addis r9,r9,.LC0-got_label@ha
33 lfs fp13,.LC0-got_label@l(r9)
41 fsubs fp12,fp13,fp13 /* generate 0.0 */
42 fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO23) */
43 mffs fp11 /* Save current FPU rounding mode and
45 fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
47 mtfsfi 7,3 /* Set rounding mode toward -inf. */
49 fadds fp1,fp1,fp13 /* x+= TWO23; */
50 fsubs fp1,fp1,fp13 /* x-= TWO23; */
51 fabs fp1,fp1 /* if (x == 0.0) */
53 mtfsf 0xff,fp11 /* Restore previous rounding mode and
57 bge- cr6,.L9 /* if (x < 0.0) */
58 fsubs fp1,fp1,fp13 /* x-= TWO23; */
59 fadds fp1,fp1,fp13 /* x+= TWO23; */
60 fnabs fp1,fp1 /* if (x == 0.0) */
63 mtfsf 0xff,fp11 /* Restore previous rounding mode and
67 /* Ensure sNaN input is converted to qNaN. */
74 weak_alias (__floorf, floorf)