1 /* Test __float128 multiplication uses after-rounding tininess 2 detection. */ 3 4 /* { dg-do run { target i?86-*-* x86_64-*-* ia64-*-* } } */ 5 /* { dg-options "" } */ 6 /* { dg-require-effective-target fenv_exceptions } */ 7 8 #include <fenv.h> 9 #include <stdlib.h> 10 11 int main(void)12main (void) 13 { 14 volatile __float128 a = 0x1.fffffffffffffffp-16382q, b = 0x1.0000000000000008p-1q, c; 15 c = a * b; 16 if (fetestexcept (FE_UNDERFLOW)) 17 abort (); 18 if (c != 0x1p-16382q) 19 abort (); 20 exit (0); 21 } 22