[FSMToSV] Erase typescope if empty (#4093)

llvm · Oct 13, 2022 · 9ec9654 · 9ec9654
1 parent a50c98d
commit 9ec9654
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/Conversion/FSMToSV/FSMToSV.cpp b/lib/Conversion/FSMToSV/FSMToSV.cpp
@@ -706,6 +706,10 @@ void FSMToSVPass::runOnOperation() {
     instance.replaceAllUsesWith(hwInstance);
     instance.erase();
   }
+
+  // If the typescope is empty (no FSMs were converted), erase it.
+  if (typeScope.getBodyBlock()->empty())
+    typeScope.erase();
 }
 
 } // end anonymous namespace