optimisation and AMD K7

[David Edelsohn]

	Note gcc-2.96 is the internal name used for the snapshots of the
unstable, development version of the compiler.  There has been no gcc-2.96
release and the next release may or may not be named gcc-2.96.

David
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David Edelsohn                                      T.J. Watson Research Center
dje@watson.ibm.com                                  P.O. Box 218
+1 914 945 4364 (TL 862)                            Yorktown Heights, NY 10598