dist/gcc/tree-switch-conversion.c

829   basic_block bb0, bb1, bb2, bbf, bbd;
835   bb0 = gimple_bb (m_switch);
867   e02 = split_block (bb0, cond_stmt);
876       e02 = make_edge (bb0, bb2, EDGE_FALSE_VALUE);
888 	redirect_immediate_dominators (CDI_DOMINATORS, bb1, bb0);
903     e01 = make_edge (bb0, bb1, EDGE_TRUE_VALUE);
942       set_immediate_dominator (CDI_DOMINATORS, bb1, bb0);
944 	set_immediate_dominator (CDI_DOMINATORS, bb2, bb0);
947 	set_immediate_dominator (CDI_DOMINATORS, bbf, bb0);
950       bbs_to_fix_dom.quick_push (bb0);