[Bug target/45325] [4.6 Regression] target attribute doesn't work with -march=i586

[davek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45325

--- Comment #15 from Dave Korn <davek at gcc dot gnu.org> 2011-01-28 15:28:33 
UTC ---
(In reply to comment #14)
> The test is invalid on i[345]86-*-* without also enabling -msse.

  Does the same apply to libcpp/lex.c?  i.e. Is that code invalid unless
compiled with -msse2?  LTO bootstrap with arch=i686,tune=generic was still
broken last time I checked.