10 instructions

[immutable slots]
i0 = 0
i1 = 0x3F800000 (1.0)

store_src_rg                   xy = src.rg
init_lane_masks                CondMask = LoopMask = RetMask = true
copy_constant                  x = 0
copy_slot_unmasked             $0 = x
label                          label 0
copy_constant                  $1 = 0x3F800000 (1.0)
copy_constant                  $2 = 0
copy_constant                  x = 0x3F800000 (1.0)
copy_slot_unmasked             $3 = x
label                          label 0x00000002
copy_2_slots_unmasked          rg = $2..3
label                          label 0x00000001
load_src                       src.rgba = $0..3