PR tree-optimization/33961
        * tree-ssa-phiopt.c (struct name_to_bb.store): New member.
        (name_to_bb_hash, name_to_bb_eq): Consider and check it.
        (add_or_mark_expr): New argument 'store', using it to search
        the hash table.
        (nt_init_block): Adjust calls to add_or_mark_expr.

        * gcc.dg/pr33961.c: New test.

From-SVN: r129817