On Sun, 2003-06-22 at 00:48, Adam Majer wrote: > I once read somewhere that you should _never_ compile in 486 > optimizations for use in processors other than the 486. Apparently > since 486 optimized code is padded a lot with NOPs. > > Apparently you are much better off on a Pentium or Athlon with > i386 optimized code than i486 optimized one. > > > Hence if we are going to migrate from i386, we should not > go to CPU like i486 and just move to a Pentium Classic > code (i586).
You're forgetting that we can actually have it both ways; we compile with -march=i486 (or i586), and -mcpu=i686.
