Re: What architecture are we?
Daniel Quinlan writes:
> Code generated with -m386 code runs faster on Pentium machines than
> code generated with -m486. Hence, in the Linux kernel (in addition to
> -O2 and such) these optimizations are used:
> i386: -m386
> i486: -m486
> i586: -m486 -malign-loops=2 -malign-jumps=2 -malign-functions=2
> The -malign options reduce the bloating of -m486 code and speed it up
> on Pentiums. I suggest that the GCC maintainer:
> - add a -m586 option that is equivalent to the above
> - make -m586 default if -m386, -m486, and -m586 are not specified
> and make this relatively easy to change for people running i486 or
> i386 machines
This is a good idea. Let's do it. Bruce?
David Engel Optical Data Systems, Inc.
firstname.lastname@example.org 1001 E. Arapaho Road
(972) 234-6400 Richardson, TX 75081
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