61 instructions

store_src_rg                   coords = src.rg
init_lane_masks                CondMask = LoopMask = RetMask = true
copy_uniform                   $0 = colorGreen(1)
cast_to_int_from_float         $0 = FloatToInt($0)
copy_slot_unmasked             x = $0
copy_constant                  _0_ok = 0
store_loop_mask                $0 = LoopMask
copy_slot_unmasked             $1 = x
store_loop_mask                $2 = LoopMask
mask_off_loop_mask             LoopMask &= ~(CondMask & LoopMask & RetMask)
case_op                        if ($1 == 0x00000002) { LoopMask = true; $2 = false; }
branch_if_no_lanes_active      branch_if_no_lanes_active +3 (label 1 at #15)
branch_if_all_lanes_active     branch_if_all_lanes_active +17 (label 0 at #30)
mask_off_loop_mask             LoopMask &= ~(CondMask & LoopMask & RetMask)
label                          label 0x00000001
case_op                        if ($1 == 0x00000001) { LoopMask = true; $2 = false; }
label                          label 0x00000002
case_op                        if ($1 == 0) { LoopMask = true; $2 = false; }
branch_if_no_lanes_active      branch_if_no_lanes_active +5 (label 3 at #24)
copy_constant                  $3 = 0xFFFFFFFF
copy_slot_masked               _0_ok = Mask($3)
branch_if_all_lanes_active     branch_if_all_lanes_active +8 (label 0 at #30)
mask_off_loop_mask             LoopMask &= ~(CondMask & LoopMask & RetMask)
label                          label 0x00000003
reenable_loop_mask             LoopMask |= $2
branch_if_no_lanes_active      branch_if_no_lanes_active +3 (label 4 at #29)
branch_if_all_lanes_active     branch_if_all_lanes_active +3 (label 0 at #30)
mask_off_loop_mask             LoopMask &= ~(CondMask & LoopMask & RetMask)
label                          label 0x00000004
label                          label 0
load_loop_mask                 LoopMask = $0
store_condition_mask           $12 = CondMask
copy_slot_unmasked             $13 = _0_ok
copy_constant                  $0 = 0
merge_condition_mask           CondMask = $12 & $13
branch_if_no_lanes_active      branch_if_no_lanes_active +32 (label 6 at #68)
copy_constant                  ok = 0
store_loop_mask                $1 = LoopMask
copy_slot_unmasked             $2 = x
store_loop_mask                $3 = LoopMask
mask_off_loop_mask             LoopMask &= ~(CondMask & LoopMask & RetMask)
case_op                        if ($2 == 0) { LoopMask = true; $3 = false; }
branch_if_no_lanes_active      branch_if_no_lanes_active +3 (label 9 at #46)
branch_if_all_lanes_active     branch_if_all_lanes_active +19 (label 8 at #63)
mask_off_loop_mask             LoopMask &= ~(CondMask & LoopMask & RetMask)
label                          label 0x00000009
case_op                        if ($2 == 0x00000001) { LoopMask = true; $3 = false; }
label                          label 0x0000000A
case_op                        if ($2 == 0x00000002) { LoopMask = true; $3 = false; }
label                          label 0x0000000B
case_op                        if ($2 == 0x00000003) { LoopMask = true; $3 = false; }
branch_if_no_lanes_active      branch_if_no_lanes_active +5 (label 12 at #57)
copy_constant                  $4 = 0xFFFFFFFF
copy_slot_masked               ok = Mask($4)
branch_if_all_lanes_active     branch_if_all_lanes_active +8 (label 8 at #63)
mask_off_loop_mask             LoopMask &= ~(CondMask & LoopMask & RetMask)
label                          label 0x0000000C
reenable_loop_mask             LoopMask |= $3
branch_if_no_lanes_active      branch_if_no_lanes_active +3 (label 13 at #62)
branch_if_all_lanes_active     branch_if_all_lanes_active +3 (label 8 at #63)
mask_off_loop_mask             LoopMask &= ~(CondMask & LoopMask & RetMask)
label                          label 0x0000000D
label                          label 0x00000008
load_loop_mask                 LoopMask = $1
copy_slot_unmasked             $1 = ok
label                          label 0x00000007
copy_slot_masked               $0 = Mask($1)
label                          label 0x00000006
load_condition_mask            CondMask = $12
swizzle_4                      $0..3 = ($0..3).xxxx
copy_4_uniforms                $4..7 = colorRed
copy_4_uniforms                $8..11 = colorGreen
mix_4_ints                     $0..3 = mix($4..7, $8..11, $0..3)
load_src                       src.rgba = $0..3