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/* With -fnon-call-exceptions 0 / 0 should not be eliminated. The .x
file sets the option. */
#ifdef SIGNAL_SUPPRESS
# define DO_TEST 0
#elif defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) || defined (__POWERPC__) || defined (__ppc)
/* On PPC division by zero does not trap. */
# define DO_TEST 0
#elif defined (__SPU__)
/* On SPU division by zero does not trap. */
# define DO_TEST 0
#elif defined (__sh__)
/* On SH division by zero does not trap. */
# define DO_TEST 0
#elif defined (__TMS320C6X__)
/* On TI C6X division by zero does not trap. */
# define DO_TEST 0
#elif defined (__arm__)
/* We cannot rely on division by zero generating a trap. */
# define DO_TEST 0
#elif defined (__mips__) && !defined(__linux__)
/* MIPS divisions do trap by default, but libgloss targets do not
intercept the trap and raise a SIGFPE. The same is probably
true of other bare-metal environments, so restrict the test to
systems that use the Linux kernel. */
# define DO_TEST 0
#elif defined (__mips16) && defined(__linux__)
/* Not all Linux kernels deal correctly the breakpoints generated by
MIPS16 divisions by zero. They show up as a SIGTRAP instead. */
# define DO_TEST 0
#else
# define DO_TEST 1
#endif
#if DO_TEST
#include <signal.h>
void
sigfpe (int signum __attribute__ ((unused)))
{
exit (0);
}
#endif
/* When optimizing, the compiler is smart enough to constant fold the
static unset variables i and j to produce 0 / 0, but it can't
eliminate the assignment to the global k. */
static int i;
static int j;
int k;
int
main ()
{
#if DO_TEST
signal (SIGFPE, sigfpe);
k = i / j;
abort ();
#else
exit (0);
#endif
}
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