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-rw-r--r--math/s_clogl.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/math/s_clogl.c b/math/s_clogl.c
index eaba572ce7..af3ed99714 100644
--- a/math/s_clogl.c
+++ b/math/s_clogl.c
@@ -85,6 +85,19 @@ __clogl (__complex__ long double x)
d2m1 += absy * absy;
__real__ result = __log1pl (d2m1) / 2.0L;
}
+ else if (absx < 1.0L
+ && absx >= 0.75L
+ && absy < LDBL_EPSILON / 2.0L
+ && scale == 0)
+ {
+ long double d2m1 = (absx - 1.0L) * (absx + 1.0L);
+ __real__ result = __log1pl (d2m1) / 2.0L;
+ }
+ else if (absx < 1.0L && (absx >= 0.75L || absy >= 0.5L) && scale == 0)
+ {
+ long double d2m1 = __x2y2m1l (absx, absy);
+ __real__ result = __log1pl (d2m1) / 2.0L;
+ }
else
{
long double d = __ieee754_hypotl (absx, absy);