inlinebug

/* Compile with -O0 it will work, compile with -O3 and it will likely print nothing */

#define write(RESULT, FD, BUFF, SIZE)   \
    asm volatile ("syscall" :           \
        "=a" (RESULT) :                 \
        "D" (FD), "S" (BUFF), "d" (SIZE), "a" (1) \
        : "rcx", "r11")

int
main() {
    char str[]="Hello\n";
    int res;
    write(res, 1, str, 6);

    return 0;
}