[doc, testsuite, libgfortran] Avoid use of SSE/SSE2/SSE3 on Solaris 8/9 x86

[Rainer Orth]

Uros Bizjak <ubizjak@gmail.com> writes:

>> Ok for mainline now and the 4.4 and 4.5 branches later?
>
> This patch is OK, but please commit it without sse{,2}_runtime changes.

Fine, thanks.

> Please prepare another incremental patch that includes sse{,2}_runtime
> stuff, we will discuss your approach separatelly.

Ok.  To be honest, H.J.'s suggestion to use sse*-check.h as far as
possible, while more invasive, is certainly attractive since we need
only a single mechanism everywhere (well, with the exception of the few
*.exp files that decide whether or not to add -msse2 on x86).  This way,
nobody needs to worry about the sse*_runtime stuff in individual
testcases.

	Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University