Season pork chops with salt and pepper. Oil the grill rack (see Tip). Place the chops on the rack directly over the heat; cover and grill, turning once, until done (145 degrees F), 6 to 8 minutes. Grill peaches, cut-sides down, rotating once halfway through, until charred, about 3 minutes. Grill bread slices until char marks form, 1 to 2 minutes.