pub const AddrSpace = enum(u24) {
    default,
    _,

    // See llvm/lib/Target/X86/X86.h
    pub const x86 = struct {
        pub const gs: AddrSpace = @enumFromInt(256);
        pub const fs: AddrSpace = @enumFromInt(257);
        pub const ss: AddrSpace = @enumFromInt(258);

        pub const ptr32_sptr: AddrSpace = @enumFromInt(270);
        pub const ptr32_uptr: AddrSpace = @enumFromInt(271);
        pub const ptr64: AddrSpace = @enumFromInt(272);
    };
    pub const x86_64 = x86;

    // See llvm/lib/Target/AVR/AVR.h
    pub const avr = struct {
        pub const data: AddrSpace = @enumFromInt(0);
        pub const program: AddrSpace = @enumFromInt(1);
        pub const program1: AddrSpace = @enumFromInt(2);
        pub const program2: AddrSpace = @enumFromInt(3);
        pub const program3: AddrSpace = @enumFromInt(4);
        pub const program4: AddrSpace = @enumFromInt(5);
        pub const program5: AddrSpace = @enumFromInt(6);
    };

    // See llvm/lib/Target/NVPTX/NVPTX.h
    pub const nvptx = struct {
        pub const generic: AddrSpace = @enumFromInt(0);
        pub const global: AddrSpace = @enumFromInt(1);
        pub const constant: AddrSpace = @enumFromInt(2);
        pub const shared: AddrSpace = @enumFromInt(3);
        pub const param: AddrSpace = @enumFromInt(4);
        pub const local: AddrSpace = @enumFromInt(5);
    };

    // See llvm/lib/Target/AMDGPU/AMDGPU.h
    pub const amdgpu = struct {
        pub const flat: AddrSpace = @enumFromInt(0);
        pub const global: AddrSpace = @enumFromInt(1);
        pub const region: AddrSpace = @enumFromInt(2);
        pub const local: AddrSpace = @enumFromInt(3);
        pub const constant: AddrSpace = @enumFromInt(4);
        pub const private: AddrSpace = @enumFromInt(5);
        pub const constant_32bit: AddrSpace = @enumFromInt(6);
        pub const buffer_fat_pointer: AddrSpace = @enumFromInt(7);
        pub const buffer_resource: AddrSpace = @enumFromInt(8);
        pub const buffer_strided_pointer: AddrSpace = @enumFromInt(9);
        pub const param_d: AddrSpace = @enumFromInt(6);
        pub const param_i: AddrSpace = @enumFromInt(7);
        pub const constant_buffer_0: AddrSpace = @enumFromInt(8);
        pub const constant_buffer_1: AddrSpace = @enumFromInt(9);
        pub const constant_buffer_2: AddrSpace = @enumFromInt(10);
        pub const constant_buffer_3: AddrSpace = @enumFromInt(11);
        pub const constant_buffer_4: AddrSpace = @enumFromInt(12);
        pub const constant_buffer_5: AddrSpace = @enumFromInt(13);
        pub const constant_buffer_6: AddrSpace = @enumFromInt(14);
        pub const constant_buffer_7: AddrSpace = @enumFromInt(15);
        pub const constant_buffer_8: AddrSpace = @enumFromInt(16);
        pub const constant_buffer_9: AddrSpace = @enumFromInt(17);
        pub const constant_buffer_10: AddrSpace = @enumFromInt(18);
        pub const constant_buffer_11: AddrSpace = @enumFromInt(19);
        pub const constant_buffer_12: AddrSpace = @enumFromInt(20);
        pub const constant_buffer_13: AddrSpace = @enumFromInt(21);
        pub const constant_buffer_14: AddrSpace = @enumFromInt(22);
        pub const constant_buffer_15: AddrSpace = @enumFromInt(23);
        pub const streamout_register: AddrSpace = @enumFromInt(128);
    };

    pub const spirv = struct {
        pub const function: AddrSpace = @enumFromInt(0);
        pub const cross_workgroup: AddrSpace = @enumFromInt(1);
        pub const uniform_constant: AddrSpace = @enumFromInt(2);
        pub const workgroup: AddrSpace = @enumFromInt(3);
        pub const generic: AddrSpace = @enumFromInt(4);
        pub const device_only_intel: AddrSpace = @enumFromInt(5);
        pub const host_only_intel: AddrSpace = @enumFromInt(6);
        pub const input: AddrSpace = @enumFromInt(7);
    };

    // See llvm/include/llvm/CodeGen/WasmAddressSpaces.h
    pub const wasm = struct {
        pub const default: AddrSpace = @enumFromInt(0);
        pub const variable: AddrSpace = @enumFromInt(1);
        pub const externref: AddrSpace = @enumFromInt(10);
        pub const funcref: AddrSpace = @enumFromInt(20);
    };

    pub fn format(
        self: AddrSpace,
        comptime prefix: []const u8,
        _: std.fmt.FormatOptions,
        writer: anytype,
    ) @TypeOf(writer).Error!void {
        if (self != .default) try writer.print("{s}addrspace({d})", .{ prefix, @intFromEnum(self) });
    }
}