Merge pull request #2075 from Pinata-Consulting/memory-lists-source-f…

…iles-actually-used Memory lists source files actually used
The-OpenROAD-Project · Jun 20, 2024 · f0caba6 · f0caba6
2 parents 5f3c603 + 24cd1aa
commit f0caba6
Show file tree

Hide file tree

Showing 2 changed files with 23 additions and 12 deletions.
diff --git a/flow/scripts/mem_dump.py b/flow/scripts/mem_dump.py
@@ -1,16 +1,12 @@
 import argparse
 import json
-import os
 import sys
 
 
 def format_ram_table_from_json(data, max_bits=None):
     formatting = "{:<15} | {:<15} | {:<15} | {:<50}\n"
-    table = formatting.format("Rows",
-                              "Width",
-                              "Total bits",
-                              "Name")
-    table += "-"*len(table) + "\n"
+    table = formatting.format("Rows", "Width", "Total bits", "Name")
+    table += "-" * len(table) + "\n"
     max_ok = True
     for module_name, module_info in data["modules"].items():
         cells = module_info["cells"]
@@ -21,9 +17,7 @@ def format_ram_table_from_json(data, max_bits=None):
             size = int(parameters["SIZE"], 2)
             width = int(parameters["WIDTH"], 2)
             bits = size * width
-            table += formatting.format(size,
-                                       width,
-                                       bits,
+            table += formatting.format(size, width, bits,
                                        module_name + "." + memory)
             if max_bits is not None and bits > max_bits:
                 max_ok = False
@@ -38,8 +32,23 @@ def format_ram_table_from_json(data, max_bits=None):
 
     with open(args.file, 'r') as file:
         json_data = json.load(file)
-    formatted_table, max_ok = format_ram_table_from_json(json_data, args.max_bits)
-    print()
+
+    src_files = set()
+    for module_name, module_info in json_data["modules"].items():
+        for cell in module_info["cells"].values():
+            if "src" not in cell["attributes"]:
+                continue
+            src_file = cell["attributes"]["src"].split(":")[0]
+            src_files.add(src_file)
+
+    print("Source files actually used in the design:")
+    print(" " + "\n ".join(src_files))
+
+    print("Memories found in the design:")
+    formatted_table, max_ok = format_ram_table_from_json(
+        json_data, args.max_bits)
     print(formatted_table)
     if not max_ok:
-        sys.exit("ERROR: Synthesized memory size exceeds maximum allowed bits " + str(args.max_bits))
+        sys.exit(
+            "ERROR: Synthesized memory size exceeds maximum allowed bits " +
+            str(args.max_bits))
diff --git a/flow/scripts/synth_preamble.tcl b/flow/scripts/synth_preamble.tcl
@@ -102,6 +102,8 @@ close $constr
 proc synthesize_check {synth_args} {
   # Generic synthesis
   log_cmd synth -top $::env(DESIGN_NAME) -run :fine {*}$synth_args
+  # Get rid of unused modules
+  clean
   json -o $::env(RESULTS_DIR)/mem.json
   # Run report and check here so as to fail early if this synthesis run is doomed
   exec -- python3 $::env(SCRIPTS_DIR)/mem_dump.py --max-bits $::env(SYNTH_MEMORY_MAX_BITS) $::env(RESULTS_DIR)/mem.json