projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| f9f70e68 | 1 | /* ceil function. PowerPC32 version. |
| 568035b7 | 2 | Copyright (C) 2004-2013 Free Software Foundation, Inc. |
| f9f70e68 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/>. */ | |
| f9f70e68 UD |
18 | |
| 19 | #include <sysdep.h> | |
| f964490f | 20 | #include <math_ldbl_opt.h> |
| f9f70e68 | 21 | |
| b0e196a4 UD |
22 | .section .rodata.cst4,"aM",@progbits,4 |
| 23 | .align 2 | |
| f9f70e68 | 24 | .LC0: /* 2**52 */ |
| b0e196a4 | 25 | .long 0x59800000 |
| f9f70e68 UD |
26 | |
| 27 | .section ".text" | |
| 28 | ENTRY (__ceil) | |
| 29 | mffs fp11 /* Save current FPU rounding mode. */ | |
| 30 | #ifdef SHARED | |
| 31 | mflr r11 | |
| a7e91561 | 32 | cfi_register(lr,r11) |
| 91d2a845 WS |
33 | SETUP_GOT_ACCESS(r9,got_label) |
| 34 | addis r9,r9,.LC0-got_label@ha | |
| 35 | lfs fp13,.LC0-got_label@l(r9) | |
| a7e91561 UD |
36 | mtlr r11 |
| 37 | cfi_same_value (lr) | |
| f9f70e68 UD |
38 | #else |
| 39 | lis r9,.LC0@ha | |
| b0e196a4 | 40 | lfs fp13,.LC0@l(r9) |
| f9f70e68 UD |
41 | #endif |
| 42 | fabs fp0,fp1 | |
| 43 | fsub fp12,fp13,fp13 /* generate 0.0 */ | |
| 44 | fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */ | |
| 45 | fcmpu cr6,fp1,fp12 /* if (x > 0.0) */ | |
| 46 | bnllr- cr7 | |
| 47 | mtfsfi 7,2 /* Set rounding mode toward +inf. */ | |
| 48 | ble- cr6,.L4 | |
| 49 | fadd fp1,fp1,fp13 /* x+= TWO52; */ | |
| 50 | fsub fp1,fp1,fp13 /* x-= TWO52; */ | |
| 4d37c8aa UD |
51 | fabs fp1,fp1 /* if (x == 0.0) */ |
| 52 | /* x = 0.0; */ | |
| f9f70e68 UD |
53 | mtfsf 0x01,fp11 /* restore previous rounding mode. */ |
| 54 | blr | |
| 55 | .L4: | |
| 56 | bge- cr6,.L9 /* if (x < 0.0) */ | |
| 57 | fsub fp1,fp1,fp13 /* x-= TWO52; */ | |
| 58 | fadd fp1,fp1,fp13 /* x+= TWO52; */ | |
| 4d37c8aa UD |
59 | fnabs fp1,fp1 /* if (x == 0.0) */ |
| 60 | /* x = -0.0; */ | |
| 61 | .L9: | |
| f9f70e68 | 62 | mtfsf 0x01,fp11 /* restore previous rounding mode. */ |
| f9f70e68 UD |
63 | blr |
| 64 | END (__ceil) | |
| 65 | ||
| 66 | weak_alias (__ceil, ceil) | |
| 67 | ||
| 68 | #ifdef NO_LONG_DOUBLE | |
| 69 | weak_alias (__ceil, ceill) | |
| 70 | strong_alias (__ceil, __ceill) | |
| 71 | #endif | |
| f964490f RM |
72 | #if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0) |
| 73 | compat_symbol (libm, __ceil, ceill, GLIBC_2_0) | |
| 74 | #endif |