33 instructions

store_src_rg                   coords = src.rg
init_lane_masks                CondMask = LoopMask = RetMask = true
splat_4_constants              a = 0
splat_4_constants              b = 0
splat_4_constants              a₁ = 0x40400000 (3.0)
splat_4_constants              b₁ = 0xC0A00000 (-5.0)
copy_4_slots_unmasked          $0..3 = a₁
copy_4_slots_unmasked          $4..7 = b₁
add_4_floats                   $0..3 += $4..7
label                          label 0
copy_4_slots_unmasked          a = $0..3
splat_4_constants              color = 0x3F800000 (1.0)
copy_4_slots_unmasked          $0..3 = color
max_imm_float                  $3 = max($3, 0x38D1B717 (0.0001))
swizzle_3                      $3..5 = ($3..5).xxx
div_3_floats                   $0..2 /= $3..5
copy_slot_unmasked             $3 = color(3)
label                          label 0x00000001
copy_4_slots_unmasked          b = $0..3
copy_4_slots_unmasked          $0..3 = a
splat_4_constants              $4..7 = 0
cmpne_4_floats                 $0..3 = notEqual($0..3, $4..7)
bitwise_or_2_ints              $0..1 |= $2..3
bitwise_or_int                 $0 |= $1
copy_4_slots_unmasked          $1..4 = b
splat_4_constants              $5..8 = 0
cmpne_4_floats                 $1..4 = notEqual($1..4, $5..8)
bitwise_or_2_ints              $1..2 |= $3..4
bitwise_or_int                 $1 |= $2
bitwise_and_int                $0 &= $1
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