[Bug target/100758] __builtin_cpu_supports does not (always) detect "sse2"

[Mayshao-oc at zhaoxin dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100758

--- Comment #24 from Mayshao-oc at zhaoxin dot com ---
Hi  Jakub:
                https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100758
                Thanks for your patch. We test it works on all zhaoxin
platforms. We find the same bug still exist in previous  gcc releases , could
you backport this patch to previous release?

BR
Mayshao