C++ (Cpp) IR_CFG::getKidOfLoop 예제들

예제 #1

파일: cfs_mgr.cpp 프로젝트: clear-wing/xoc

AbsNode * CfsMgr::constructAbsLoop(
        IN IRBB * entry,
        IN AbsNode * parent,
        IN BitSet * cur_region,
        IN Graph & cur_graph,
        IN OUT BitSet & visited)
{
    DUMMYUSE(cur_region);
    ASSERT0(cur_region == NULL || cur_region->is_contain(BB_id(entry)));
    IR_CFG * cfg = m_ru->getCFG();
    LI<IRBB> * li = cfg->mapBB2LabelInfo(entry);
    ASSERT0(li != NULL && LI_loop_head(li) == entry);

    AbsNode * node = new_abs_node(ABS_LOOP);
    set_map_bb2abs(entry, node);
    ABS_NODE_parent(node) = parent;
    ABS_NODE_loop_head(node) = entry;
    IRBB * body_start;
    cfg->getKidOfLoop(entry, NULL, &body_start);
    ASSERT0(body_start != NULL);

    CFS_INFO * ci = map_ir2cfsinfo(cfg->get_last_xr(entry));
    CHECK_DUMMYUSE(ci);
    ASSERT0(CFS_INFO_head(ci) == entry);

    ASSERT0(CFS_INFO_loop_body(ci)->is_contain(*LI_bb_set(li)));
    BitSet loc_visited;
    ABS_NODE_loop_body(node) = constructAbsTree(body_start, node,
        LI_bb_set(li), cur_graph, loc_visited);
    visited.bunion(loc_visited);
    visited.bunion(BB_id(entry));
    return node;
}