Gamepad help / bug

On the official wiki it claims the RB and LB bumpers rotate ship left and right, but they do not actually do this in the game. Most of the other keys are correct, but the D-pad are also wonky.

In any case, how do I barrel roll right and left while using a gamepad?
--- Automerge ---
For clarity I am a PC user with an Xbox controller.

EDIT: I figured it out, hold LB and move rt stick.