return _value_dominates(irn, use);
}
-/**
- * Check if a node strictly dominates a use.
- * Note that the use of a phi is in its corresponding predecessor.
- * @param irn The node.
- * @param edge The use.
- * @return 1, if @p irn strictly dominates the use @p edge.
- */
-static inline int _strictly_dominates_use(const ir_node *irn, const ir_edge_t *edge)
-{
- return get_edge_src_irn(edge) != irn && _dominates_use(irn, edge);
-}
-
-/**
- * Check, if a node is live in front of another.
- * @param irg The backend irg.
- * @param irn The node.
- * @param where The location to check for.
- * @return 1, if @p irn is live in front of @p where.
- */
-static inline int _be_lv_chk_before_irn(ir_graph *irg, const ir_node *irn,
- const ir_node *where)
-{
- const be_lv_t *lv = be_get_irg_liveness(irg);
-
- /* the node must strictly dominate the location, else it cannot be live there. */
- if (!_value_dominates(irn, where) || irn == where)
- return 0;
-
- /*
- * now that it is clear that it strictly dominates the location it is surely live
- * if it is also live end at the block.
- */
- if (be_is_live_end(lv, get_nodes_block(where), irn))
- return 1;
-
- /*
- * If the node is not live out, we have to check if there
- * is a use which is dominated by the location.
- */
- foreach_out_edge (irn, edge) {
- if (_dominates_use(where, edge))
- return 1;
- }
-
- return 0;
-}
-
-/**
- * Check, if a node is live after another node.
- * @param irg The backend irg.
- * @param irn The node.
- * @param where The location to check for.
- * @return 1, if @p irn is live after @p where.
- */
-static inline int _be_lv_chk_after_irn(ir_graph *irg, const ir_node *irn,
- const ir_node *where)
-{
- const be_lv_t *lv = be_get_irg_liveness(irg);
-
- if (!_value_dominates(irn, where))
- return 0;
-
- if (be_is_live_end(lv, get_nodes_block(where), irn))
- return 1;
-
- foreach_out_edge (irn, edge) {
- if (_strictly_dominates_use(where, edge))
- return 1;
- }
-
- return 0;
-}
-
-#define value_dominates_intrablock(a, b) _value_dominates_intrablock(a, b)
#define value_dominates(a, b) _value_dominates(a, b)
#define dominates_use(a, e) _dominates_use(a, e)
-#define strictly_dominates_use(a, e) _strictly_dominates_use(a, e)
-#define be_lv_chk_before_irn(irg, a, b) _be_lv_chk_before_irn(irg, a, b)
-#define be_lv_chk_after_irn(irg, a, b) _be_lv_chk_after_irn(irg, a, b)
#endif