[4.0 testsuite patch]: Backport testcase fixes

[Janis Johnson]

On Fri, Dec 09, 2005 at 10:13:36AM -0500, Kaveh R. Ghazi wrote:
> This patch backports to 4.0 various testcase updates made by me and
> others to help these tests run cleanly on i?86 and x86_64, with and
> without -fpic/-fPIC, and with and without multilibs enabled.
> 
> Tested via 4.0 "make check" on i686-unknown-linux-gnu and
> x86_64-unknown-linux-gnu with extra -fpic/-fPIC passes.
> 
> There was one testcase which started showing failures where there was
> none before, gcc.dg/20020523-1.c, because it was originally targetted
> to i386-only and therefore not run in 4.0.x on my i686 box.  On
> mainline it's targetted to i?86, and it fails there too.  So we're
> closer to mainline results with the patch.  I don't know if the
> conversion on mainline from i386 to i?86 was appropriate or not, so I
> can leave out that bit until the mainline failure is cured or the
> testcase is reverted.
> 
> 
> Okay for 4.0?  (With or without gcc.dg/20020523-1.c?)

OK without the change to gcc.dg/20020523-1.c; as Mark said, we don't
want to add new failures to a branch by adding or modifying tests.

Janis