-march=pentium3 bugs on mainline

[Kelley Cook]

>There are a few more failures:
>
>+FAIL: gcc.dg/i386-387-1.c scan-assembler call	_?cos
>+FAIL: gcc.dg/i386-387-1.c scan-assembler call	_?sin
>+FAIL: gcc.dg/i386-387-1.c scan-assembler call	_?sqrt
>+FAIL: gcc.misc-tests/i386-pf-none-1.c scan-assembler-not fetch
>+FAIL: gcc.misc-tests/i386-pf-none-1.c scan-assembler-not fetch
>+FAIL: gcc.misc-tests/i386-pf-none-1.c scan-assembler-not fetch
>+FAIL: gcc.misc-tests/i386-pf-none-1.c scan-assembler-not fetch
>+FAIL: gcc.misc-tests/i386-pf-none-1.c scan-assembler-not fetch
>+FAIL: gcc.misc-tests/i386-pf-none-1.c scan-assembler-not fetch
>+FAIL: gcc.misc-tests/i386-pf-none-1.c scan-assembler-not fetch
>+FAIL: gcc.misc-tests/i386-pf-none-1.c scan-assembler-not fetch
>+FAIL: Thread_Wait execution - gij test

I discovered these a while ago.  It is actually a failing of the C-testsuite
framework.

Check out bug other/6480 [http://gcc.gnu.org/cgi-bin/gnatsweb.pl?pr=6480].

It would be nice if someone would review it.

Kelley Cook