Add `-duplicate` option to the `design` command.

diff --git a/passes/cmds/design.cc b/passes/cmds/design.cc
index 7ea0be9ee431b3c8659ace9564c4396d7d36becd..01daa36789dcb10c5bbad09c4b4ae6729fcf8562 100644 (file)
--- a/passes/cmds/design.cc
+++ b/passes/cmds/design.cc
@@ -60,6 +60,11 @@ struct DesignPass : public Pass {
                log("Push the current design to the stack and then clear the current design.\n");
                log("\n");
                log("\n");
+               log("    design -duplicate\n");
+               log("\n");
+               log("Push the current design to the stack without clearing the current design.\n");
+               log("\n");
+               log("\n");
                log("    design -pop\n");
                log("\n");
                log("Reset the current design and pop the last design from the stack.\n");
@@ -101,6 +106,7 @@ struct DesignPass : public Pass {
                bool reset_mode = false;
                bool reset_vlog_mode = false;
                bool push_mode = false;
+               bool duplicate_mode = false;
                bool pop_mode = false;
                bool import_mode = false;
                RTLIL::Design *copy_from_design = NULL, *copy_to_design = NULL;
@@ -126,6 +132,11 @@ struct DesignPass : public Pass {
                                push_mode = true;
                                continue;
                        }
+                       if (!got_mode && args[argidx] == "-duplicate") {
+                               got_mode = true;
+                               duplicate_mode = true;
+                               continue;
+                       }
                        if (!got_mode && args[argidx] == "-pop") {
                                got_mode = true;
                                pop_mode = true;
@@ -307,7 +318,7 @@ struct DesignPass : public Pass {
                        }
                }
 
-               if (!save_name.empty() || push_mode)
+               if (!save_name.empty() || push_mode || duplicate_mode)
                {
                        RTLIL::Design *design_copy = new RTLIL::Design;
 
@@ -321,7 +332,7 @@ struct DesignPass : public Pass {
                        if (saved_designs.count(save_name))
                                delete saved_designs.at(save_name);
 
-                       if (push_mode)
+                       if (push_mode || duplicate_mode)
                                pushed_designs.push_back(design_copy);
                        else
                                saved_designs[save_name] = design_copy;