kernel/sdc: Fully parse set_false_path
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7425635934
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69b5217963
@ -376,16 +376,17 @@ struct SDCParser
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TclValue cmd_set_false_path(const std::vector<TclValue> &arguments)
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{
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std::optional<TclValue &> from, to;
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NetInfo *from = nullptr;
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NetInfo *to = nullptr;
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for (int i = 1; i < int(arguments.size()); i++) {
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auto &arg = arguments.at(i);
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if (arg.is_string) {
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std::string s = arg.str;
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auto &target = from;
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bool is_from = true;
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if (s == "-to") {
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target = to;
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is_from = false;
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} else if (s != "-from") {
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log_error("expecting either -to or -from to set_false_path(line %d)\n", lineno);
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}
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@ -396,19 +397,38 @@ struct SDCParser
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log_error("expecting TclValue argument to -from (line %d)\n", lineno);
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}
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for (const auto &ety : val.list) {
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NetInfo *net = nullptr;
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if (ety.type == TclEntity::ENTITY_PIN)
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net = ety.get_net(ctx);
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else if (ety.type == TclEntity::ENTITY_NET)
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net = ctx->nets.at(ety.name).get();
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else if (ety.type == TclEntity::ENTITY_PORT)
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net = ctx->ports.at(ety.name).net;
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else
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log_error("set_false_path applies only to cells, cell pins, or IO ports (line %d)\n", lineno);
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if (val.list.size() != 1) {
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log_error("Expected a single TclEntity as argument to -to/-from (line %d)\n", lineno);
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}
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auto &ety = val.list.at(0);
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NetInfo *net = nullptr;
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if (ety.type == TclEntity::ENTITY_PIN)
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net = ety.get_net(ctx);
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else if (ety.type == TclEntity::ENTITY_NET)
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net = ctx->nets.at(ety.name).get();
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else if (ety.type == TclEntity::ENTITY_PORT)
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net = ctx->ports.at(ety.name).net;
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else
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log_error("set_false_path applies only to nets, cell pins, or IO ports (line %d)\n", lineno);
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if (is_from) {
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from = net;
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} else {
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to = net;
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}
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}
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}
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if (from == nullptr) {
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log_error("-from is required for set_false_path (line %d)\n", lineno);
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} else if (to == nullptr) {
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log_error("-to is required for set_false_path (line %d)\n", lineno);
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}
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log_info("set_false_path from: %s, to: %s\n", from->name.c_str(ctx), to->name.c_str(ctx));
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return std::string{};
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}
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