1 /* { dg-do link } */ 2 /* { dg-require-effective-target ia32 } */ 3 /* { dg-options "-O2 -march=pentiumpro" } */ 4 5 extern __inline double __expm1(double __x)6__expm1 (double __x) 7 { 8 double __temp; 9 __temp -= 1.0; 10 return __temp; 11 } 12 extern __inline double __sgn1(double __x)13__sgn1 (double __x) 14 { 15 return __x >= 0.0 ? 1.0 : -1.0; 16 } 17 double tanh(double __x)18tanh (double __x) 19 { 20 register double __exm1 = __expm1 (__x); 21 return __exm1 / (__exm1 + 2.0) * __sgn1 (-__x); 22 } main()23main () 24 { 25 return tanh (3.45) != 0; 26 } 27