1 /* Test for correct rounding of conversions from __int128 to
2    float.  */
3 /* { dg-do run } */
4 /* { dg-require-effective-target int128 } */
5 /* { dg-require-effective-target fenv } */
6 /* { dg-options "-frounding-math" } */
7 
8 #include <fenv.h>
9 #include <stdlib.h>
10 
11 int
main(void)12 main (void)
13 {
14 #ifdef FE_TOWARDZERO
15   volatile unsigned long long h = 0x8000000000000000LL;
16   volatile unsigned long long l = 0xdLL;
17   volatile unsigned __int128 u128 = (((unsigned __int128) h) << 64) | l;
18   volatile __int128 s128 = u128;
19   fesetround (FE_TOWARDZERO);
20   float fs = s128;
21   if (fs != -0x1.fffffep+126)
22     abort ();
23   double ds = s128;
24   if (ds != -0x1.fffffffffffffp+126)
25     abort ();
26 #endif
27   exit (0);
28 }
29