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      1 /* Based on reproducer done by Dejan Jevtic */
      2 int main (void)
      3 {
      4 #if defined(VGA_amd64)
      5    /* Note that small changes in the code below
      6       caused the bug not to be triggered anymore.
      7       E.g. removing the dec %%eax avoids the assert
      8       while this removal causes one more loop to be
      9       executed. */
     10 __asm__ __volatile__
     11    ("mov $30, %%eax\n\t"
     12     "top:\n\t"
     13     "mov $-4, %%ebx\n\t"
     14     "add %%ebx, %%eax\n\t"
     15     "dec %%eax\n\t"
     16     "cmp    $0x0,%%eax\n\t"
     17     "jne top\n\t"
     18     "mov $60, %%eax\n\t"
     19     "mov $0, %%rdi\n\t"
     20     "syscall\n\t"
     21     : : : "eax", "ebx", "rdi"
     22     );
     23 #elif defined(VGA_mips32) || defined(VGA_mips64)
     24 __asm__ __volatile__
     25    ("li $t0, 42\n\t"
     26     "top:\n\t"
     27     "li $t1, -4\n\t"
     28     "addu $t0, $t0, $t1\n\t"
     29     "li $t2, -2\n\t"
     30     "addu $t0, $t0, $t2\n\t"
     31     "addiu $t0, $t0, -1\n\t"
     32     "bnez $t0, top\n\t"
     33     "nop\n\t"
     34     : : : "t0", "t1"
     35     );
     36 #endif
     37  return 0;
     38 }
     39