diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc32/fpu/s_llround.c')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/fpu/s_llround.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_llround.c b/sysdeps/powerpc/powerpc32/fpu/s_llround.c deleted file mode 100644 index 5e5a237b0c..0000000000 --- a/sysdeps/powerpc/powerpc32/fpu/s_llround.c +++ /dev/null @@ -1,90 +0,0 @@ -/* Round double value to long long int. - Copyright (C) 1997-2017 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 <limits.h> -#include <math.h> -#include <math_ldbl_opt.h> -#include <math_private.h> -#include <stdint.h> - -/* Round to the nearest integer, with values exactly on a 0.5 boundary - rounded away from zero, regardless of the current rounding mode. - If (long long)x, when x is out of range of a long long, clips at - LLONG_MAX or LLONG_MIN, then this implementation also clips. */ - -long long int -__llround (double x) -{ - long long xr; - if (HAVE_PPC_FCTIDZ) - xr = (long long) x; - else - { - /* Avoid incorrect exceptions from libgcc conversions (as of GCC - 5): <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59412>. */ - if (fabs (x) < 0x1p31) - xr = (long long int) (long int) x; - else - { - uint64_t i0; - EXTRACT_WORDS64 (i0, x); - int exponent = ((i0 >> 52) & 0x7ff) - 0x3ff; - if (exponent < 63) - { - unsigned long long int mant - = (i0 & ((1ULL << 52) - 1)) | (1ULL << 52); - if (exponent < 52) - /* llround is not required to raise "inexact". */ - mant >>= 52 - exponent; - else - mant <<= exponent - 52; - xr = (long long int) ((i0 & (1ULL << 63)) != 0 ? -mant : mant); - } - else if (x == (double) LLONG_MIN) - xr = LLONG_MIN; - else - xr = (long long int) (long int) x << 32; - } - } - /* Avoid spurious "inexact" converting LLONG_MAX to double, and from - subtraction when the result is out of range, by returning early - for arguments large enough that no rounding is needed. */ - if (!(fabs (x) < 0x1p52)) - return xr; - double xrf = (double) xr; - - if (x >= 0.0) - { - if (x - xrf >= 0.5) - xr += (long long) ((unsigned long long) xr + 1) > 0; - } - else - { - if (xrf - x >= 0.5) - xr -= (long long) ((unsigned long long) xr - 1) < 0; - } - return xr; -} -weak_alias (__llround, llround) -#ifdef NO_LONG_DOUBLE -strong_alias (__llround, __llroundl) -weak_alias (__llround, llroundl) -#endif -#if LONG_DOUBLE_COMPAT (libm, GLIBC_2_1) -compat_symbol (libm, __llround, llroundl, GLIBC_2_1); -#endif |