+
+void arch_irn_set_flags(ir_node *node, arch_irn_flags_t flags)
+{
+ backend_info_t *info = be_get_info(node);
+ info->flags = flags;
+}
+
+void arch_irn_add_flags(ir_node *node, arch_irn_flags_t flags)
+{
+ backend_info_t *info = be_get_info(node);
+ info->flags |= flags;
+}
+
+void arch_dump_register_req(FILE *F, const arch_register_req_t *req,
+ const ir_node *node)
+{
+ if (req == NULL || req->type == arch_register_req_type_none) {
+ fprintf(F, "n/a");
+ return;
+ }
+
+ fprintf(F, "%s", req->cls->name);
+
+ if (arch_register_req_is(req, limited)) {
+ unsigned n_regs = req->cls->n_regs;
+ unsigned i;
+
+ fprintf(F, " limited to");
+ for (i = 0; i < n_regs; ++i) {
+ if (rbitset_is_set(req->limited, i)) {
+ const arch_register_t *reg = &req->cls->regs[i];
+ fprintf(F, " %s", reg->name);
+ }
+ }
+ }
+
+ if (arch_register_req_is(req, should_be_same)) {
+ const unsigned other = req->other_same;
+ int i;
+
+ fprintf(F, " same as");
+ for (i = 0; 1U << i <= other; ++i) {
+ if (other & (1U << i)) {
+ ir_fprintf(F, " %+F", get_irn_n(skip_Proj_const(node), i));
+ }
+ }
+ }
+
+ if (arch_register_req_is(req, must_be_different)) {
+ const unsigned other = req->other_different;
+ int i;
+
+ fprintf(F, " different from");
+ for (i = 0; 1U << i <= other; ++i) {
+ if (other & (1U << i)) {
+ ir_fprintf(F, " %+F", get_irn_n(skip_Proj_const(node), i));
+ }
+ }
+ }
+
+ if (arch_register_req_is(req, ignore)) {
+ fprintf(F, " ignore");
+ }
+ if (arch_register_req_is(req, produces_sp)) {
+ fprintf(F, " produces_sp");
+ }
+}
+
+void arch_dump_reqs_and_registers(FILE *F, const ir_node *node)
+{
+ int n_ins = get_irn_arity(node);
+ int n_outs = arch_irn_get_n_outs(node);
+ arch_irn_flags_t flags = arch_irn_get_flags(node);
+ int i;
+
+ for (i = 0; i < n_ins; ++i) {
+ const arch_register_req_t *req = arch_get_in_register_req(node, i);
+ fprintf(F, "inreq #%d = ", i);
+ arch_dump_register_req(F, req, node);
+ fputs("\n", F);
+ }
+ for (i = 0; i < n_outs; ++i) {
+ const arch_register_req_t *req = arch_get_out_register_req(node, i);
+ fprintf(F, "outreq #%d = ", i);
+ arch_dump_register_req(F, req, node);
+ fputs("\n", F);
+ }
+ for (i = 0; i < n_outs; ++i) {
+ const arch_register_t *reg = arch_irn_get_register(node, i);
+ const arch_register_req_t *req = arch_get_out_register_req(node, i);
+ if (req->cls == NULL)
+ continue;
+ fprintf(F, "reg #%d = %s\n", i, reg != NULL ? reg->name : "n/a");
+ }
+
+ fprintf(F, "flags =");
+ if (flags == arch_irn_flags_none) {
+ fprintf(F, " none");
+ } else {
+ if (flags & arch_irn_flags_dont_spill) {
+ fprintf(F, " unspillable");
+ }
+ if (flags & arch_irn_flags_rematerializable) {
+ fprintf(F, " remat");
+ }
+ if (flags & arch_irn_flags_modify_flags) {
+ fprintf(F, " modify_flags");
+ }
+ }
+ fprintf(F, " (%d)\n", flags);
+}
+
+static const arch_register_req_t no_requirement = {
+ arch_register_req_type_none,
+ NULL,
+ NULL,
+ 0,
+ 0
+};
+const arch_register_req_t *arch_no_register_req = &no_requirement;