* Checks if node has a should_be_different constraint in output
* and adds a Keep then to assure the constraint.
*/
-static void assure_different_constraint(ir_node *irn, lower_env_t *env) {
- const arch_env_t *arch_env = env->chord_env->birg->main_env->arch_env;
+static void assure_different_constraint(ir_node *irn, be_irg_t *birg) {
+ const arch_env_t *arch_env = birg->main_env->arch_env;
const arch_register_req_t *req;
arch_register_req_t req_temp;
ir_node *in[2], *keep;
+ firm_dbg_module_t *mod = firm_dbg_register("firm.be.lower");
req = arch_get_register_req(arch_env, &req_temp, irn, -1);
in[0] = irn;
in[1] = req->other_different;
- keep = be_new_Keep(req->cls, env->chord_env->birg->irg, get_nodes_block(irn), 2, in);
- DBG((env->dbg_module, LEVEL_1, "created %+F for %+F to assure should_be_different\n", keep, irn));
+ keep = be_new_Keep(req->cls, birg->irg, get_nodes_block(irn), 2, in);
+ DBG((mod, LEVEL_1, "created %+F for %+F to assure should_be_different\n", keep, irn));
}
}
/**
- * Calls the corresponding lowering function for the node.
+ * Calls the functions to assure register constraints.
*
* @param irn The node to be checked for lowering
* @param walk_env The walker environment
*/
-static void lower_nodes_before_ra_walker(ir_node *irn, void *walk_env) {
+static void assure_constraints_walker(ir_node *irn, void *walk_env) {
if (is_Block(irn))
return;
+/**
+ * Walks over all nodes to assure register constraints.
+ *
+ * @param birg The birg structure containing the irg
+ */
+void assure_constraints(be_irg_t *birg) {
+ irg_walk_blkwise_graph(birg->irg, NULL, assure_constraints_walker, birg);
+}
+
+
+
/**
* Calls the corresponding lowering function for the node.
*
-/**
- * Walks over all blocks in an irg and performs action need to be
- * done before register allocation (e.g. add Keeps for should be different constraints).
- *
- * @param chord_env The chordal environment containing the irg
- */
-void lower_nodes_before_ra(be_chordal_env_t *chord_env) {
- lower_env_t env;
-
- env.chord_env = chord_env;
- env.dbg_module = firm_dbg_register("firm.be.lower");
-
- irg_walk_blkwise_graph(chord_env->irg, NULL, lower_nodes_before_ra_walker, &env);
-}
-
-
-
/**
* Walks over all blocks in an irg and performs lowering need to be
* done after register allocation (e.g. perm lowering).