/* Test __float128 multiplication uses after-rounding tininess | |
detection. */ | |
/* { dg-do run { target i?86-*-* x86_64-*-* ia64-*-* } } */ | |
/* { dg-options "" } */ | |
/* { dg-require-effective-target fenv_exceptions } */ | |
#include <fenv.h> | |
#include <stdlib.h> | |
int | |
main (void) | |
{ | |
volatile __float128 a = 0x1.fffffffffffffffp-16382q, b = 0x1.0000000000000008p-1q, c; | |
c = a * b; | |
if (fetestexcept (FE_UNDERFLOW)) | |
abort (); | |
if (c != 0x1p-16382q) | |
abort (); | |
exit (0); | |
} |