diff options
Diffstat (limited to 'ports/sysdeps/am33/fpu/fraiseexcpt.c')
-rw-r--r-- | ports/sysdeps/am33/fpu/fraiseexcpt.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/ports/sysdeps/am33/fpu/fraiseexcpt.c b/ports/sysdeps/am33/fpu/fraiseexcpt.c deleted file mode 100644 index b86a51eb8e..0000000000 --- a/ports/sysdeps/am33/fpu/fraiseexcpt.c +++ /dev/null @@ -1,78 +0,0 @@ -/* Raise given exceptions. - Copyright (C) 2000-2014 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Alexandre Oliva <aoliva@redhat.com> - based on corresponding file in the M68K port. - - 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 <fenv.h> -#include <float.h> -#include <math.h> -#include <shlib-compat.h> - -int -__feraiseexcept (int excepts) -{ - /* Raise exceptions represented by EXCEPTS. But we must raise only one - signal at a time. It is important that if the overflow/underflow - exception and the divide by zero exception are given at the same - time, the overflow/underflow exception follows the divide by zero - exception. */ - - /* First: invalid exception. */ - if (excepts & FE_INVALID) - { - /* One example of an invalid operation is 0 * Infinity. */ - float x = HUGE_VALF, y = 0.0f; - __asm__ __volatile__ ("fmul %1,%0" : "+f" (x) : "f" (y)); - } - - /* Next: division by zero. */ - if (excepts & FE_DIVBYZERO) - { - float x = 1.0f, y = 0.0f; - __asm__ __volatile__ ("fdiv %1,%0" : "+f" (x) : "f" (y)); - } - - /* Next: overflow. */ - if (excepts & FE_OVERFLOW) - { - float x = FLT_MAX; - - __asm__ __volatile__ ("fmul %0,%0" : "+f" (x)); - } - - /* Next: underflow. */ - if (excepts & FE_UNDERFLOW) - { - float x = -FLT_MIN; - - __asm__ __volatile__ ("fmul %0,%0" : "+f" (x)); - } - - /* Last: inexact. */ - if (excepts & FE_INEXACT) - { - float x = 1.0f, y = 3.0f; - __asm__ __volatile__ ("fdiv %1,%0" : "=f" (x) : "f" (y)); - } - - /* Success. */ - return 0; -} - -libm_hidden_ver (__feraiseexcept, feraiseexcept) -versioned_symbol (libm, __feraiseexcept, feraiseexcept, GLIBC_2_2); |