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/* Copyright (C) 2001-2025 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC 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 General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "sfp-machine.h"
#define __math_force_eval_div(x, y) \
do { asm ("" : "+f" (x)); asm volatile ("" : : "f" (x / y)); } while (0)
void
__sfp_handle_exceptions (int _fex)
{
if (_fex & FP_EX_INVALID)
{
float x = 0.0f;
__math_force_eval_div (x, x);
}
if (_fex & FP_EX_DIVZERO)
{
float x = 1.0f;
float y = 0.0f;
__math_force_eval_div (x, y);
}
if (_fex & FP_EX_OVERFLOW)
{
float x = __FLT_MAX__;
asm ("" : "+f" (x));
asm volatile ("" : : "f" (x + x));
}
if (_fex & FP_EX_UNDERFLOW)
{
float x = __FLT_MIN__;
asm ("" : "+f" (x));
asm volatile ("" : : "f" (x * x));
}
if (_fex & FP_EX_INEXACT)
{
float x = 1.0f;
float y = 3.0f;
__math_force_eval_div (x, y);
}
}
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