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Diffstat (limited to 'sysdeps/alpha/fpu/s_trunc.c')
-rw-r--r-- | sysdeps/alpha/fpu/s_trunc.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/sysdeps/alpha/fpu/s_trunc.c b/sysdeps/alpha/fpu/s_trunc.c deleted file mode 100644 index 6ba7297614..0000000000 --- a/sysdeps/alpha/fpu/s_trunc.c +++ /dev/null @@ -1,45 +0,0 @@ -/* Copyright (C) 2007-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson. - - 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 <math.h> -#include <math_ldbl_opt.h> -#include <libm-alias-double.h> - - -/* Use the chopped rounding mode conversion instructions to implement trunc. */ - -double -__trunc (double x) -{ - double two52 = copysign (0x1.0p52, x); - double r, tmp; - - if (isgreaterequal (fabs (x), 0x1.0p52)) - return x; - - __asm ( - "addt/suc %2, %3, %1\n\tsubt/suc %1, %3, %0" - : "=&f"(r), "=&f"(tmp) - : "f"(x), "f"(two52)); - - /* trunc(-0) == -0, and in general we'll always have the same - sign as our input. */ - return copysign (r, x); -} - -libm_alias_double (__trunc, trunc) |