Messages in this thread | | | Date | Wed, 19 May 2010 20:10:54 -0300 | From | Mauro Carvalho Chehab <> | Subject | Re: Does anyone care about gcc 3.x support for x86 anymore? |
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H. Peter Anvin wrote: > Recently, we have seen an increasing number of problems with gcc 3.4 on > x86; mostly due to poor constant propagation producing not just bad code > but failing to properly eliminate what should be dead code.
I don't see any problem, as, if people are using gcc3, they are probably not interested on the bleeding edge kernel.
However, if the problems are just performance/dead code removal, I would just add a big warning if someone tries to compile x86 with it. I don't like very much the idea of having different minimum gcc requirements for each architecture, except if gcc is producing a broken code.
Currently,Documentation/Changes list just a common minimal list for everything - although the text describing gcc say that the "version requirements" may vary for each CPU type.
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Cheers, Mauro
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