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Diffstat (limited to 'libc/math/s_csinhf.c')
-rw-r--r--libc/math/s_csinhf.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/libc/math/s_csinhf.c b/libc/math/s_csinhf.c
index ba85e79b8..4b019a0ed 100644
--- a/libc/math/s_csinhf.c
+++ b/libc/math/s_csinhf.c
@@ -42,7 +42,15 @@ __csinhf (__complex__ float x)
const int t = (int) ((FLT_MAX_EXP - 1) * M_LN2);
float sinix, cosix;
- __sincosf (__imag__ x, &sinix, &cosix);
+ if (__builtin_expect (icls != FP_SUBNORMAL, 1))
+ {
+ __sincosf (__imag__ x, &sinix, &cosix);
+ }
+ else
+ {
+ sinix = __imag__ x;
+ cosix = 1.0f;
+ }
if (fabsf (__real__ x) > t)
{
@@ -109,7 +117,15 @@ __csinhf (__complex__ float x)
/* Imaginary part is finite. */
float sinix, cosix;
- __sincosf (__imag__ x, &sinix, &cosix);
+ if (__builtin_expect (icls != FP_SUBNORMAL, 1))
+ {
+ __sincosf (__imag__ x, &sinix, &cosix);
+ }
+ else
+ {
+ sinix = __imag__ x;
+ cosix = 1.0f;
+ }
__real__ retval = __copysignf (HUGE_VALF, cosix);
__imag__ retval = __copysignf (HUGE_VALF, sinix);