It’s called a ballistic roll, which is a subset of aileron rolls.

A barrel roll includes enough pitch during the procedure that at the moment of being inverted, the aircraft is facing 90 degrees off from the initial heading.

There are two types of aileron rolls: ballistic rolls and competition rolls. In a competition roll, the goal is to have the aircraft maintain level flight the entire time. This leads to significant control inputs, including quite a bit of negative G forces to maintain the altitude during the inverted portion of the roll. These, as the name imply, are the types done in aerobatic competition and exhibition.

A ballistic roll is when you pitch up (the exact amount of pitch depending on the roll rate and the other flight characteristics of the plane) and then push down until the aircraft is experiencing 0G (aka is on a ballistic trajectory, falling through the sky rather than flying). At this point a full deflection of the ailerons can be done and the aircraft rolled, maintaining zero G the entire time and thus not stressing the airframe. It’s how non-aerobatic aircraft like these can roll. Tex Johnson famously demonstrated it over Seattle in a 707.

Source: I’m a competition aerobatic pilot.