gcc-2.7 creates faster code than pgcc-1.1.1

[Jeffrey A Law]

  In message < m10Ilq3-00000YC@ocean.lucon.org >you write:

  > Just keep in mind that this small change speeds up gzip by 10-20% on
  > PPro, P/II and maybe P/III. It may be true also for 386. According
  > to TARGET_ZERO_EXTEND_WITH_AND, only 486 and Pentium seems to prefer
  > "and".
But that does not make the patch correct.  Period.


  > BTW, FWIW, "movzbl" has 3 bytes and "addl" has 5 bytes. So "movzbl" is
  > smaller and faster on 386, PPro, P/II and P/III.
Correct.  That is precisely one of the changes in my patch.

jeff