big slowdown in egcs-1.1.2->gcc-2.95 on alpha

[Richard Henderson]

On Thu, Nov 04, 1999 at 06:29:25AM +0000, Joern Rennecke wrote:
> ! 	      if (word & 1 && allocno_to_order[allocno3] > i)

Parenthesis problem around the `&'.

Also fix the commentary for `conflicts' where it says that
the matrix is asymmetric.

Otherwise the patch looks good, and does make an enormous difference.
Time spent in global for Wilhelm Kloke's test case is down from 1687 
seconds to 93 seconds.

Feel free to commit after fixing nits.  Thanks!


r~