9 instructions

[immutable slots]
i0 = 0x00000002 (2.802597e-45)

store_src_rg                   coords = src.rg
init_lane_masks                CondMask = LoopMask = RetMask = true
copy_constant                  $0 = 0x00000002 (2.802597e-45)
cmpeq_imm_int                  $0 = equal($0, 0x00000002)
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