[Bug tree-optimization/49218] Incorrect optimization of a 'for' loop creates an infinite loop

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49218

--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-05-29 
17:48:21 UTC ---
C testcase:

float f;
int main()
{
  long long i = f;
  if (i <= 10)
    do
      {
        ++i;
        asm("");
      }
    while (i != 11);
  return 0;
}