diff options
Diffstat (limited to 'math/s_cexp.c')
| -rw-r--r-- | math/s_cexp.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/math/s_cexp.c b/math/s_cexp.c index 1d7a5a2c40..d0a95ba79c 100644 --- a/math/s_cexp.c +++ b/math/s_cexp.c @@ -39,7 +39,15 @@ __cexp (__complex__ double x) const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2); double sinix, cosix; - __sincos (__imag__ x, &sinix, &cosix); + if (__builtin_expect (icls != FP_SUBNORMAL, 1)) + { + __sincos (__imag__ x, &sinix, &cosix); + } + else + { + sinix = __imag__ x; + cosix = 1.0; + } if (__real__ x > t) { @@ -95,7 +103,15 @@ __cexp (__complex__ double x) { double sinix, cosix; - __sincos (__imag__ x, &sinix, &cosix); + if (__builtin_expect (icls != FP_SUBNORMAL, 1)) + { + __sincos (__imag__ x, &sinix, &cosix); + } + else + { + sinix = __imag__ x; + cosix = 1.0; + } __real__ retval = __copysign (value, cosix); __imag__ retval = __copysign (value, sinix); |