/* { dg-do compile } *//* { dg-options "-O1 -fno-trapping-math -fdump-tree-optimized" } */  extern void f(int);extern void link_error ();extern float x;extern double y;extern long double z;intmain (){  double nan = __builtin_nan ("");  float nanf = __builtin_nanf ("");  long double nanl = __builtin_nanl ("");  double pinf = __builtin_inf ();  float pinff = __builtin_inff ();  long double pinfl = __builtin_infl ();  if (__builtin_finite (pinf))    link_error ();  if (__builtin_finitef (pinff))    link_error ();  if (__builtin_finitel (pinfl))    link_error ();  if (__builtin_finite (nan))    link_error ();  if (__builtin_finitef (nanf))    link_error ();  if (__builtin_finitel (nanl))    link_error ();  if (!__builtin_finite (4.0))    link_error ();  if (!__builtin_finitef (4.0))    link_error ();  if (!__builtin_finitel (4.0))    link_error ();}/* Check that all instances of link_error were subject to DCE.  *//* { dg-final { scan-tree-dump-times "link_error" 0 "optimized" } } *//* { dg-final { cleanup-tree-dump "optimized" } } */