1. store_src_rg                   coords = src.rg
    2. init_lane_masks                CondMask = LoopMask = RetMask = true
    3. copy_constant                  _2_ok = 0xFFFFFFFF
    4. copy_slot_unmasked             $0 = _2_ok
    5. copy_4_constants               $1..4 = colorGreen
    6. copy_4_constants               $5..8 = colorRed
    7. cmpne_4_floats                 $1..4 = notEqual($1..4, $5..8)
    8. bitwise_or_2_ints              $1..2 |= $3..4
    9. bitwise_or_int                 $1 |= $2
   10. bitwise_and_int                $0 &= $1
   11. copy_slot_unmasked             _2_ok = $0
   12. swizzle_4                      $0..3 = ($0..3).xxxx
   13. copy_4_constants               $4..7 = colorRed
   14. copy_4_constants               $8..11 = colorGreen
   15. mix_4_ints                     $0..3 = mix($4..7, $8..11, $0..3)
   16. copy_4_slots_unmasked          [main].result = $0..3
   17. load_src                       src.rgba = [main].result