diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/fpu/s_trunc.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/s_trunc.S | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/sysdeps/powerpc/powerpc64/fpu/s_trunc.S b/sysdeps/powerpc/powerpc64/fpu/s_trunc.S deleted file mode 100644 index 628960dd27..0000000000 --- a/sysdeps/powerpc/powerpc64/fpu/s_trunc.S +++ /dev/null @@ -1,72 +0,0 @@ -/* trunc function. PowerPC64 version. - Copyright (C) 2004-2019 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <math_ldbl_opt.h> -#include <libm-alias-double.h> - - .section ".toc","aw" -.LC0: /* 2**52 */ - .tc FD_43300000_0[TC],0x4330000000000000 - .section ".text" - -/* double [fp1] trunc (double x [fp1]) - IEEE 1003.1 trunc function. IEEE specifies "trunc to the integer - value, in floating format, nearest to but no larger in magnitude - then the argument." - We set "round toward Zero" mode and trunc by adding +-2**52 then - subtracting +-2**52. */ - -ENTRY (__trunc, 4) - CALL_MCOUNT 0 - lfd fp13,.LC0@toc(2) - fabs fp0,fp1 - fsub fp12,fp13,fp13 /* generate 0.0 */ - fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO52) */ - mffs fp11 /* Save current FPU rounding mode and - "inexact" state. */ - fcmpu cr6,fp1,fp12 /* if (x > 0.0) */ - bnl- cr7,.L10 - mtfsfi 7,1 /* Set rounding toward 0 mode. */ - ble- cr6,.L4 - fadd fp1,fp1,fp13 /* x+= TWO52; */ - fsub fp1,fp1,fp13 /* x-= TWO52; */ - fabs fp1,fp1 /* if (x == 0.0) */ - /* x = 0.0; */ - mtfsf 0xff,fp11 /* Restore previous rounding mode and - "inexact" state. */ - blr -.L4: - bge- cr6,.L9 /* if (x < 0.0) */ - fsub fp1,fp1,fp13 /* x-= TWO52; */ - fadd fp1,fp1,fp13 /* x+= TWO52; */ - fnabs fp1,fp1 /* if (x == 0.0) */ - /* x = -0.0; */ -.L9: - mtfsf 0xff,fp11 /* Restore previous rounding mode and - "inexact" state. */ - blr -.L10: - /* Ensure sNaN input is converted to qNaN. */ - fcmpu cr7,fp1,fp1 - beqlr cr7 - fadd fp1,fp1,fp1 - blr - END (__trunc) - -libm_alias_double (__trunc, trunc) |