Comment by rep_lodsb

Tried it with GCC, and without any optimization it does print the message. With "-O2" however, we get this:

    Disassembly of section .text:
    
    0000000000001040 <main>:
        1040: 0f 05                 syscall 
        1042: 31 c0                 xor    %eax,%eax
        1044: c3                    retq   

Everything except the syscall instruction has been optimized away!