/* Test truncation from __float128 to float uses after-rounding tininess detection. */ /* { dg-do run { target i?86-*-* x86_64-*-* ia64-*-* } } */ /* { dg-options "" } */ /* { dg-require-effective-target fenv_exceptions } */ #include #include int main (void) { volatile __float128 a = 0x0.ffffffffffp-126q, b = 0x0.ffffffp-126q; volatile float r; r = (float) a; if (fetestexcept (FE_UNDERFLOW)) abort (); if (r != 0x1p-126f) abort (); r = (float) b; if (!fetestexcept (FE_UNDERFLOW)) abort (); if (r != 0x1p-126f) abort (); exit (0); }