Merge pull request #3065 from The-OpenROAD-Project-staging/add-cap-load-unit-replace

Added capacitive_load_unit replacement

Author: maliberty

flow/util/preprocessLib.py

@@ -36,6 +36,12 @@
 content, count = re.subn(pattern, replace, content)
 print("Replaced malformed functions", count)
 
+# Yosys-abc raises an assertion if the capacitive_load_unit is not ff
+pattern = r"capacitive_load_unit\s*\(\s*0.001,pf\s*\);"
+replace = r"capacitive_load_unit (1,ff);"
+content, count = re.subn(pattern, replace, content)
+print("Replaced capacitive_load_unit", count)
+
 # Write output file
 print("Writing replaced file:", args.outputFile)
 f = open(args.outputFile, "w")