+
−/* { dg-do compile } */
+
−/* { dg-options "-Os -ffast-math" } */
+
−extern int ilogbl(long double);
+
−extern int printf(const char *format, ...);
+
−
+
−__attribute__((noinline, noclone))
+
−int foo(long double x)
+
−{
+
−  return ilogbl(x);
+
−}
+
−
+
−int main()
+
−{
+
−  printf("%d\n", foo(100));
+
−  return 0;
+
−}