  We investigate the pairing properties of state-of-the-art semilocal
coordinate-space and semilocal momentum-space regularized chiral interactions.
Specifically, we calculate the pairing gaps in $^3SD_1$ channel of symmetric
nuclear matter and in $^1S_0$ and $^3PF_2$ channels of pure neutron matter
within the BCS approximation using these chiral interactions. We address the
regulator and chiral order dependence of the pairing gaps and compare the
pairing properties of the chiral interactions with those of the Argonne v18
(Av18) potential. The effects of the tensor force on the pairing gaps in the
$^3SD_1$ and $^3PF_2$ channels are illustrated for both the chiral interactions
and the Av18 potential. We evaluate the truncation errors of chiral expansions
of the pairing gaps with a Bayesian approach. We find that the pairing gaps
converge very well at the higher-order chiral expansions in the $^3SD_1$ and
$^1S_0$ channels.
