[vpr][route][crr] add get_pattern_file_name

Author: amin1377

vpr/src/route/rr_graph_generation/tileable_rr_graph/crr_generator/crr_switch_block_manager.cpp

@@ -95,6 +95,17 @@ void SwitchBlockManager::initialize(const std::string& sb_maps_file,
     }
 }
 
+std::string SwitchBlockManager::get_pattern_file_name(const std::string& pattern) const {
+    auto it = switch_block_to_file_.find(pattern);
+
+    if (it == switch_block_to_file_.end()) {
+        return "";
+    } else {
+        std::filesystem::path path(it->second);
+        return path.filename().string();
+    }
+}
+
 const DataFrame* SwitchBlockManager::get_switch_block_dataframe(const std::string& pattern) const {
     auto it = dataframes_.find(pattern);
     return (it != dataframes_.end()) ? it->second : nullptr;

vpr/src/route/rr_graph_generation/tileable_rr_graph/crr_generator/crr_switch_block_manager.h

@@ -29,6 +29,11 @@ class SwitchBlockManager {
                     const std::string& sb_annotated_dir,
                     const bool is_annotated_excel);
 
+    /**
+     * @brief Get the switch template file name for a given pattern
+     */
+    std::string get_pattern_file_name(const std::string& pattern) const;
+
     /**
      * @brief Get DataFrame for a specific switch block pattern
      * @param pattern Switch block pattern name (e.g., "SB_1__2_")