pub const magic_number: u32 = 0x07230203;
pub const byte_swapped_magic_number: u32 = 0x03022307;
pub const header_word_count: usize = 5;

pub const Opcode = enum(u32) {
    nop = 0,
    undef = 1,
    name = 5,
    member_name = 6,
    string = 7,
    line = 8,
    extension = 10,
    ext_inst_import = 11,
    ext_inst = 12,
    memory_model = 14,
    entry_point = 15,
    execution_mode = 16,
    capability = 17,

    type_void = 19,
    type_bool = 20,
    type_int = 21,
    type_float = 22,
    type_vector = 23,
    type_matrix = 24,
    type_image = 25,
    type_sampler = 26,
    type_sampled_image = 27,
    type_array = 28,
    type_runtime_array = 29,
    type_struct = 30,
    type_opaque = 31,
    type_pointer = 32,
    type_function = 33,

    constant_true = 41,
    constant_false = 42,
    constant = 43,
    constant_composite = 44,
    constant_null = 46,
    spec_constant_true = 48,
    spec_constant_false = 49,
    spec_constant = 50,
    spec_constant_composite = 51,
    spec_constant_op = 52,

    function = 54,
    function_parameter = 55,
    function_end = 56,
    function_call = 57,
    variable = 59,
    load = 61,
    store = 62,
    access_chain = 65,

    decorate = 71,
    member_decorate = 72,
    vector_shuffle = 79,
    composite_construct = 80,
    composite_extract = 81,
    composite_insert = 82,
    copy_object = 83,

    convert_f_to_u = 109,
    convert_f_to_s = 110,
    convert_s_to_f = 111,
    convert_u_to_f = 112,
    u_convert = 113,
    s_convert = 114,
    f_convert = 115,
    bitcast = 124,

    s_negate = 126,
    f_negate = 127,
    i_add = 128,
    f_add = 129,
    i_sub = 130,
    f_sub = 131,
    i_mul = 132,
    f_mul = 133,
    u_div = 134,
    s_div = 135,
    f_div = 136,
    u_mod = 137,
    s_rem = 138,
    s_mod = 139,
    f_rem = 140,
    f_mod = 141,
    shift_right_logical = 194,
    shift_right_arithmetic = 195,
    shift_left_logical = 196,
    bitwise_or = 197,
    bitwise_xor = 198,
    bitwise_and = 199,
    logical_equal = 164,
    logical_not_equal = 165,
    logical_or = 166,
    logical_and = 167,
    logical_not = 168,
    select = 169,
    i_equal = 170,
    i_not_equal = 171,
    u_less_than = 176,
    s_less_than = 177,
    f_ord_equal = 180,
    f_unord_equal = 181,
    f_ord_not_equal = 182,
    f_unord_not_equal = 183,
    f_ord_less_than = 184,
    f_unord_less_than = 185,

    phi = 245,
    loop_merge = 246,
    selection_merge = 247,
    label = 248,
    branch = 249,
    branch_conditional = 250,
    @"switch" = 251,
    kill = 252,
    return_ = 253,
    return_value = 254,
    @"unreachable" = 255,
    no_line = 317,

    _,
};

pub const ExecutionModel = enum(u32) {
    vertex = 0,
    tessellation_control = 1,
    tessellation_evaluation = 2,
    geometry = 3,
    fragment = 4,
    gl_compute = 5,
    kernel = 6,
    _,
};

pub const StorageClass = enum(u32) {
    uniform_constant = 0,
    input = 1,
    uniform = 2,
    output = 3,
    workgroup = 4,
    cross_workgroup = 5,
    private = 6,
    function = 7,
    generic = 8,
    push_constant = 9,
    atomic_counter = 10,
    image = 11,
    storage_buffer = 12,
    physical_storage_buffer = 5349,
    _,
};

pub const ExecutionMode = enum(u32) {
    early_fragment_tests = 9,
    local_size = 17,
    _,
};

pub const Decoration = enum(u32) {
    spec_id = 1,
    built_in = 11,
    location = 30,
    component = 31,
    index = 32,
    _,
};