51 instructions

store_src_rg                   coords = src.rg
init_lane_masks                CondMask = LoopMask = RetMask = true
splat_2_constants              expected, i = 0
store_loop_mask                $0 = LoopMask
jump                           jump +42 (label 1 at #47)
label                          label 0x00000002
copy_constant                  j = 0
store_loop_mask                $1 = LoopMask
jump                           jump +27 (label 4 at #36)
label                          label 0x00000005
copy_slot_unmasked             $2 = expected
add_imm_float                  $2 += 0x3F800000 (1.0)
copy_slot_masked               expected = Mask($2)
store_condition_mask           $2 = CondMask
copy_slot_unmasked             $8 = i
mul_imm_int                    $8 *= 0x00000003
copy_slot_unmasked             $9 = j
copy_slot_unmasked             $10 = $8
add_int                        $9 += $10
branch_if_no_lanes_active      branch_if_no_lanes_active +4 (label 6 at #24)
copy_4_uniforms                $11..14 = testMatrix3x3(0..3)
copy_4_uniforms                $15..18 = testMatrix3x3(4..7)
copy_uniform                   $19 = testMatrix3x3(8)
label                          label 0x00000006
copy_from_indirect_unmasked    $3 = Indirect($11 + $9)
copy_slot_unmasked             $4 = expected
cmpne_float                    $3 = notEqual($3, $4)
merge_condition_mask           CondMask = $2 & $3
copy_4_uniforms                $4..7 = colorRed
copy_4_slots_masked            [main].result = Mask($4..7)
mask_off_return_mask           RetMask &= ~(CondMask & LoopMask & RetMask)
load_condition_mask            CondMask = $2
copy_slot_unmasked             $2 = j
add_imm_int                    $2 += 0x00000001
copy_slot_masked               j = Mask($2)
label                          label 0x00000004
copy_slot_unmasked             $2 = j
cmplt_imm_int                  $2 = lessThan($2, 0x00000003)
merge_loop_mask                LoopMask &= $2
stack_rewind
branch_if_any_lanes_active     branch_if_any_lanes_active -31 (label 5 at #10)
label                          label 0x00000003
load_loop_mask                 LoopMask = $1
copy_slot_unmasked             $1 = i
add_imm_int                    $1 += 0x00000001
copy_slot_masked               i = Mask($1)
label                          label 0x00000001
copy_slot_unmasked             $1 = i
cmplt_imm_int                  $1 = lessThan($1, 0x00000003)
merge_loop_mask                LoopMask &= $1
stack_rewind
branch_if_any_lanes_active     branch_if_any_lanes_active -46 (label 2 at #6)
label                          label 0
load_loop_mask                 LoopMask = $0
copy_4_uniforms                $0..3 = colorGreen
copy_4_slots_masked            [main].result = Mask($0..3)
mask_off_return_mask           RetMask &= ~(CondMask & LoopMask & RetMask)
load_src                       src.rgba = [main].result