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/* { dg-do compile } */
/* { dg-options "-O1 -fno-trapping-math -fno-finite-math-only -fdump-tree-gimple -fdump-tree-optimized" } */
extern void f(int);
extern void link_error ();
extern float x;
extern double y;
extern long double z;
int
main ()
{
double nan = __builtin_nan ("");
float nanf = __builtin_nanf ("");
long double nanl = __builtin_nanl ("");
if (!__builtin_isnan (nan))
link_error ();
if (!__builtin_isnan (nanf))
link_error ();
if (!__builtin_isnanf (nanf))
link_error ();
if (!__builtin_isnan (nanl))
link_error ();
if (!__builtin_isnanl (nanl))
link_error ();
if (__builtin_isnan (4.0))
link_error ();
if (__builtin_isnan (4.0))
link_error ();
if (__builtin_isnanf (4.0))
link_error ();
if (__builtin_isnan (4.0))
link_error ();
if (__builtin_isnanl (4.0))
link_error ();
f (__builtin_isnan (x));
f (__builtin_isnan (y));
f (__builtin_isnanf (y));
f (__builtin_isnan (z));
f (__builtin_isnanl (z));
}
/* Check that all instances of __builtin_isnan were folded. */
/* { dg-final { scan-tree-dump-times "isnan" 0 "gimple" } } */
/* Check that all instances of link_error were subject to DCE. */
/* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" } } */
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