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5ce98c3f | 1 | /* ceil function. PowerPC64 version. |
bfff8b1b | 2 | Copyright (C) 2004-2017 Free Software Foundation, Inc. |
5ce98c3f UD |
3 | This file is part of the GNU C Library. |
4 | ||
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. | |
9 | ||
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. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
5ce98c3f UD |
18 | |
19 | #include <sysdep.h> | |
f964490f | 20 | #include <math_ldbl_opt.h> |
5ce98c3f UD |
21 | |
22 | .section ".toc","aw" | |
23 | .LC0: /* 2**52 */ | |
24 | .tc FD_43300000_0[TC],0x4330000000000000 | |
5ce98c3f UD |
25 | .section ".text" |
26 | ||
4d37c8aa | 27 | EALIGN (__ceil, 4, 0) |
d7d06f79 | 28 | CALL_MCOUNT 0 |
5ce98c3f UD |
29 | lfd fp13,.LC0@toc(2) |
30 | fabs fp0,fp1 | |
31 | fsub fp12,fp13,fp13 /* generate 0.0 */ | |
32 | fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */ | |
b4d80349 JM |
33 | mffs fp11 /* Save current FPU rounding mode and |
34 | "inexact" state. */ | |
5ce98c3f | 35 | fcmpu cr6,fp1,fp12 /* if (x > 0.0) */ |
f6ef0657 | 36 | bnl- cr7,.L10 |
5ce98c3f UD |
37 | mtfsfi 7,2 /* Set rounding mode toward +inf. */ |
38 | ble- cr6,.L4 | |
39 | fadd fp1,fp1,fp13 /* x+= TWO52; */ | |
40 | fsub fp1,fp1,fp13 /* x-= TWO52; */ | |
4d37c8aa UD |
41 | fabs fp1,fp1 /* if (x == 0.0) */ |
42 | /* x = 0.0; */ | |
b4d80349 JM |
43 | mtfsf 0xff,fp11 /* Restore previous rounding mode and |
44 | "inexact" state. */ | |
5ce98c3f UD |
45 | blr |
46 | .L4: | |
47 | bge- cr6,.L9 /* if (x < 0.0) */ | |
48 | fsub fp1,fp1,fp13 /* x-= TWO52; */ | |
49 | fadd fp1,fp1,fp13 /* x+= TWO52; */ | |
4d37c8aa UD |
50 | fnabs fp1,fp1 /* if (x == 0.0) */ |
51 | /* x = -0.0; */ | |
52 | .L9: | |
b4d80349 JM |
53 | mtfsf 0xff,fp11 /* Restore previous rounding mode and |
54 | "inexact" state. */ | |
5ce98c3f | 55 | blr |
f6ef0657 JM |
56 | .L10: |
57 | /* Ensure sNaN input is converted to qNaN. */ | |
58 | fcmpu cr7,fp1,fp1 | |
59 | beqlr cr7 | |
60 | fadd fp1,fp1,fp1 | |
61 | blr | |
5ce98c3f UD |
62 | END (__ceil) |
63 | ||
64 | weak_alias (__ceil, ceil) | |
65 | ||
66 | #ifdef NO_LONG_DOUBLE | |
67 | weak_alias (__ceil, ceill) | |
68 | strong_alias (__ceil, __ceill) | |
69 | #endif | |
f964490f RM |
70 | #if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) |
71 | compat_symbol (libm, __ceil, ceill, GLIBC_2_0) | |
72 | #endif |