*** 40,56 ****
          tiny    = 1.0e-20L;
  
  long double
  asinhl(long double x) {
          long double t, w;
  
          w = fabsl(x);
          if (isnanl(x))
                  return (x + x); /* x is NaN */
          if (w < tiny) {
  #ifndef lint
!                 volatile long double dummy = x + big;   /* inexact if x != 0 */
  #endif
                  return (x);     /* tiny x */
          } else if (w < big) {
                  t = one / w;
                  return (copysignl(log1pl(w + w / (t + sqrtl(one + t * t))), x));
--- 40,57 ----
          tiny    = 1.0e-20L;
  
  long double
  asinhl(long double x) {
          long double t, w;
+         volatile long double dummy;
  
          w = fabsl(x);
          if (isnanl(x))
                  return (x + x); /* x is NaN */
          if (w < tiny) {
  #ifndef lint
!                 dummy = x + big;        /* inexact if x != 0 */
  #endif
                  return (x);     /* tiny x */
          } else if (w < big) {
                  t = one / w;
                  return (copysignl(log1pl(w + w / (t + sqrtl(one + t * t))), x));