diff --git a/openfpga/src/fabric/memory_bank_shift_register_banks.cpp b/openfpga/src/fabric/memory_bank_shift_register_banks.cpp
index 6956b22d2..0d4902936 100644
--- a/openfpga/src/fabric/memory_bank_shift_register_banks.cpp
+++ b/openfpga/src/fabric/memory_bank_shift_register_banks.cpp
@@ -1,9 +1,22 @@
+#include <algorithm>
 #include "vtr_assert.h"
 #include "memory_bank_shift_register_banks.h" 
 
 /* begin namespace openfpga */
 namespace openfpga {
 
+std::vector<ModuleId> MemoryBankShiftRegisterBanks::shift_register_bank_unique_modules() const {
+  std::vector<ModuleId> sr_bank_modules;
+  for (const auto& region : sr_instance_info_) {
+    for (const auto& pair : region) {
+      if (sr_bank_modules.end() == std::find(sr_bank_modules.begin(), sr_bank_modules.end(), pair.first.first)) {
+        sr_bank_modules.push_back(pair.first.first);
+      }
+    }
+  }
+  return sr_bank_modules;
+} 
+
 std::vector<ModuleId> MemoryBankShiftRegisterBanks::shift_register_bank_modules(const ConfigRegionId& region) const {
   std::vector<ModuleId> sr_bank_modules;
   VTR_ASSERT(valid_region_id(region));
diff --git a/openfpga/src/fabric/memory_bank_shift_register_banks.h b/openfpga/src/fabric/memory_bank_shift_register_banks.h
index 262508bad..59c92fef7 100644
--- a/openfpga/src/fabric/memory_bank_shift_register_banks.h
+++ b/openfpga/src/fabric/memory_bank_shift_register_banks.h
@@ -22,6 +22,9 @@ namespace openfpga {
  ******************************************************************************/
 class MemoryBankShiftRegisterBanks {
   public: /* Accessors */
+    /* @brief Return a list of modules of unique shift register banks across all the regions */
+    std::vector<ModuleId> shift_register_bank_unique_modules() const; 
+
     /* @brief Return a list of modules of shift register banks under a specific configuration region of top-level module */
     std::vector<ModuleId> shift_register_bank_modules(const ConfigRegionId& region) const;