
I see you are using a DEC ALPHA.  Gcc does a better job optimizing generated
code than DEC's cc.  It appears that DEC's cc reserves several registers
(probably for use in software pipelining), that prevents ATLAS from achieving
maximal performance.  I therefore recommend that you use gcc as MCC, rather
than cc.

The second rather surprising result on ALPHAs is that EGCS and new versions
of gcc produces much less optimal code than gcc 2.8 or earlier.  You will
lose roughly 10% of performance by using newer gcc.  The errata file
   www.cs.utk.edu/~rwhaley/ATLAS/errata.html
contains pointers to instructions on downloading and compiling an old version
of gcc, which we recommend you do if you don't have one.
