* resource.c (mark_referenced_resources): Mark a set strict_low_part

as used.
* config/i386/i386.c (ix86_expand_setcc): Re-enable clear + set
strict_low_part when possible.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31340 138bc75d-0d04-0410-961f-82ee72b054a4