use alternate formula for acos asm to avoid loss of precision

[oweals/musl.git] / src / math / ilogb.c

diff --git a/src/math/ilogb.c b/src/math/ilogb.c
index c5915a0ca4b306e670af772b137d6a94a38a1077..0a3a6a46352cdcf1eac8d4d7ac183e72d9fdd51a 100644 (file)
--- a/src/math/ilogb.c
+++ b/src/math/ilogb.c
@@ -11,7 +11,6 @@ int ilogb(double x)
                if (u.bits == 0)
                        return FP_ILOGB0;
                /* subnormal x */
-               // FIXME: scale up subnormals with a *0x1p53 or find top set bit with a better method
                for (e = -0x3ff; u.bits < (uint64_t)1<<63; e--, u.bits<<=1);
                return e;
        }