Re: Does anyone care about gcc 3.x support for x86 anymore?

From: H. Peter Anvin
Date: Wed May 19 2010 - 20:40:26 EST

On 05/19/2010 04:10 PM, Mauro Carvalho Chehab wrote:
> 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.

We already have different gcc version requirements, whether or not
they're written down is another matter...


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at