RFC: Odd code in sched-deps.c:compute_forward_dependences

[Graham Stott]

Hi

While look thru the scheduling code I've spotted an odd looking
bit of code which looks like it's got a typo.


void
compute_forward_dependences (head, tail)
      rtx head, tail;
{
   .....

       for (link = LOG_LINKS (insn); link; link = XEXP (link, 1))
         {
           rtx x = XEXP (link, 0);
           rtx new_link;

           if (x != XEXP (link, 0))
             continue;

As written the x != XEXP (link, 0) test can never be true due to the
initial assignment to x.

Do anyone have any idea what's up?

Graham