47 instructions

[immutable slots]
i0 = 0x3F800000 (1.0)
i1 = 0x40000000 (2.0)
i2 = 0x40400000 (3.0)
i3 = 0x40800000 (4.0)
i4 = 0x3F800000 (1.0)
i5 = 0x40000000 (2.0)
i6 = 0x40400000 (3.0)
i7 = 0x40800000 (4.0)
i8 = 0x3F800000 (1.0)
i9 = 0x40000000 (2.0)
i10 = 0x40400000 (3.0)
i11 = 0x40800000 (4.0)
i12 = 0x3F800000 (1.0)
i13 = 0x3F800000 (1.0)
i14 = 0x40000000 (2.0)
i15 = 0x40400000 (3.0)
i16 = 0x40800000 (4.0)
i17 = 0x3F800000 (1.0)
i18 = 0x40000000 (2.0)
i19 = 0x40400000 (3.0)
i20 = 0x40800000 (4.0)
i21 = 0x3F800000 (1.0)
i22 = 0x40000000 (2.0)
i23 = 0x40400000 (3.0)
i24 = 0x40800000 (4.0)
i25 = 0x3F800000 (1.0)
i26 = 0x40000000 (2.0)
i27 = 0x40400000 (3.0)
i28 = 0x40800000 (4.0)

store_src_rg                   coords = src.rg
init_lane_masks                CondMask = LoopMask = RetMask = true
copy_4_uniforms                f4 = testMatrix2x2
copy_3_slots_unmasked          $0..2 = f4(0..2)
copy_constant                  $3 = 0x40800000 (4.0)
copy_4_immutables_unmasked     $4..7 = i0..3 [0x3F800000 (1.0), 0x40000000 (2.0), 0x40400000 (3.0), 0x40800000 (4.0)]
cmpeq_4_floats                 $0..3 = equal($0..3, $4..7)
bitwise_and_2_ints             $0..1 &= $2..3
bitwise_and_int                $0 &= $1
copy_slot_unmasked             ok = $0
copy_4_slots_unmasked          $1..4 = f4
copy_4_slots_unmasked          $5..8 = f4
copy_slot_unmasked             $9 = f4(0)
copy_4_immutables_unmasked     $10..13 = i4..7 [0x3F800000 (1.0), 0x40000000 (2.0), 0x40400000 (3.0), 0x40800000 (4.0)]
copy_4_immutables_unmasked     $14..17 = i8..11 [0x3F800000 (1.0), 0x40000000 (2.0), 0x40400000 (3.0), 0x40800000 (4.0)]
copy_constant                  $18 = 0x3F800000 (1.0)
cmpeq_n_floats                 $1..9 = equal($1..9, $10..18)
bitwise_and_4_ints             $2..5 &= $6..9
bitwise_and_2_ints             $2..3 &= $4..5
bitwise_and_int                $2 &= $3
bitwise_and_int                $1 &= $2
bitwise_and_int                $0 &= $1
copy_slot_unmasked             ok = $0
copy_3_slots_unmasked          $1..3 = f4(0..2)
copy_4_slots_unmasked          $4..7 = f4
swizzle_3                      $4..6 = ($4..7).wxy
copy_4_slots_unmasked          $7..10 = f4
swizzle_4                      $7..10 = ($7..10).zwxy
copy_2_slots_unmasked          $11..12 = f4(2..3)
copy_4_slots_unmasked          $13..16 = f4
copy_4_immutables_unmasked     $17..20 = i13..16 [0x3F800000 (1.0), 0x40000000 (2.0), 0x40400000 (3.0), 0x40800000 (4.0)]
copy_4_immutables_unmasked     $21..24 = i17..20 [0x3F800000 (1.0), 0x40000000 (2.0), 0x40400000 (3.0), 0x40800000 (4.0)]
copy_4_immutables_unmasked     $25..28 = i21..24 [0x3F800000 (1.0), 0x40000000 (2.0), 0x40400000 (3.0), 0x40800000 (4.0)]
copy_4_immutables_unmasked     $29..32 = i25..28 [0x3F800000 (1.0), 0x40000000 (2.0), 0x40400000 (3.0), 0x40800000 (4.0)]
cmpeq_n_floats                 $1..16 = equal($1..16, $17..32)
bitwise_and_4_ints             $9..12 &= $13..16
bitwise_and_4_ints             $5..8 &= $9..12
bitwise_and_4_ints             $1..4 &= $5..8
bitwise_and_2_ints             $1..2 &= $3..4
bitwise_and_int                $1 &= $2
bitwise_and_int                $0 &= $1
copy_slot_unmasked             ok = $0
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