8 instructions

store_src_rg                   p = src.rg
init_lane_masks                CondMask = LoopMask = RetMask = true
copy_2_slots_unmasked          $0..1 = p
mul_imm_float                  $0 *= 0x3EAAAAAB (0.333333343)
mul_imm_float                  $1 *= 0x3EAAAAAB (0.333333343)
copy_2_slots_unmasked          p = $0..1
splat_4_constants              $0..3 = 0x3F800000 (1.0)
load_src                       src.rgba = $0..3