gcc/testsuite/gcc.dg/pr18520-1.c

   1 /* PR middle-end/18520 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -ffast-math" } */
   4
   5 extern int isnan (double __value) __attribute__ ((__const__));
   6
   7 int gsl_isnan (const double x)
   8 {
   9   return isnan(x);
  10 }
  11