1 /* Related to PR optimization/10764 */ 2 3 /* { dg-do compile } */ 4 /* { dg-options "-O2 -ffast-math" } */ 5 6 double atan(double x); 7 foo(double x)8 double foo(double x) 9 { 10 return atan(atan(x)); 11 } 12 13