| 1. store_src_rg xy = src.rg | |
| 2. init_lane_masks CondMask = LoopMask = RetMask = true | |
| 3. zero_slot_unmasked i = 0 | |
| 4. copy_slot_unmasked $0 = i | |
| 5. cast_to_float_from_int $0 = IntToFloat($0) | |
| 6. swizzle_4 $0..3 = ($0..3).xxxx | |
| 7. copy_4_slots_unmasked [main].result = $0..3 | |
| 8. load_src src.rgba = [main].result |