Messages in this thread | | | From | (Linus Torvalds) | Subject | Re: [patch] x86, small syscall entry speedup, 2.1.90 | Date | 14 Mar 1998 20:59:20 GMT |
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In article <199803140338.WAA24095@dcl.MIT.EDU>, Theodore Y. Ts'o <tytso@MIT.EDU> wrote: > >Well, Linus may not like the movb syntax, but I for one am glad people >are paying attention to bumming cycles out of frequently used code >paths...
It's not that I don't like the "movb" syntax, but the fact is that it is _wrong_ by any measure.
The patch Ingo had is equvalent to fooling a C compiler to generate better code by giving it code that shouldn't have compiled in the first place.
And that is why I think the patch is so wrong, when it is clearly a gas bug (gas shouldn't use 16-bit overrides in the first place).
Linus
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