1const std = @import("std");
 2
 3pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace, _: ?usize) noreturn {
 4    _ = stack_trace;
 5    if (std.mem.eql(u8, message, "@memcpy arguments alias")) {
 6        std.process.exit(0);
 7    }
 8    std.process.exit(1);
 9}
10pub fn main() !void {
11    var buffer = [2]u8{ 1, 2 } ** 5;
12    var len: usize = 5;
13    _ = &len;
14    @memcpy(buffer[0..len], buffer[4 .. 4 + len]);
15    return error.TestFailed;
16}
17// run
18// backend=selfhosted,llvm
19// target=x86_64-linux,aarch64-linux