1 /* Test truncation from __float128 to float uses after-rounding
2    tininess 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)12 main (void)
13 {
14   volatile __float128 a = 0x0.ffffffffffp-126q, b = 0x0.ffffffp-126q;
15   volatile float r;
16   r = (float) a;
17   if (fetestexcept (FE_UNDERFLOW))
18     abort ();
19   if (r != 0x1p-126f)
20     abort ();
21   r = (float) b;
22   if (!fetestexcept (FE_UNDERFLOW))
23     abort ();
24   if (r != 0x1p-126f)
25     abort ();
26   exit (0);
27 }
28