Constant core::arch::x86_64::_MM_MANT_SIGN_NAN

pub const _MM_MANT_SIGN_NAN: _MM_MANTISSA_SIGN_ENUM = 0x02;

🔬 This is a nightly-only experimental API. (stdsimd #48556)

This is supported on x86-64 only.

如果 sign(SRC) =1，则 DEST=NaN