gcc/testsuite/gcc.dg/980313-1.c

   1 /* { dg-do link { target i?86-*-* } } */
   2 /* { dg-skip-if "" { i?86-*-* } { "-m64" } { "" } } */
   3 /* { dg-options "-O2 -march=pentiumpro" } */
   4
   5 extern __inline  double
   6 __expm1 (double __x)
   7 {
   8   double __temp;
   9   __temp -= 1.0;
  10   return __temp;
  11 }
  12 extern __inline  double
  13 __sgn1 (double __x)
  14 {
  15   return __x >= 0.0 ? 1.0 : -1.0;
  16 }
  17 double
  18 tanh (double __x)
  19 {
  20   register double __exm1 = __expm1 (__x);
  21   return __exm1 / (__exm1 + 2.0) * __sgn1 (-__x);
  22 }
  23 main ()
  24 {
  25   return tanh (3.45) != 0;
  26 }