x86-64: Use testl to check __x86_string_control
Use testl, instead of andl, to check __x86_string_control to avoid updating __x86_string_control.
Reviewed-by: Carlos O'Donell carlos@redhat.com (cherry picked from commit 3c8b9879)
Use testl, instead of andl, to check __x86_string_control to avoid updating __x86_string_control.
Reviewed-by: Carlos O'Donell carlos@redhat.com (cherry picked from commit 3c8b9879)