From b1bc81285574a7b2bca29a2e0cd76b60dcf56106 Mon Sep 17 00:00:00 2001
From: hailong <hailong.sun@terapines.com>
Date: Tue, 7 May 2024 18:18:04 +0800
Subject: [PATCH] [ImportVerilog] Fix unknown name caused by local variables.

---
 lib/Conversion/ImportVerilog/Statements.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/Conversion/ImportVerilog/Statements.cpp b/lib/Conversion/ImportVerilog/Statements.cpp
index 6860af7ba282..b1b214490e4d 100644
--- a/lib/Conversion/ImportVerilog/Statements.cpp
+++ b/lib/Conversion/ImportVerilog/Statements.cpp
@@ -63,8 +63,11 @@ struct StmtVisitor {
         return failure();
     }
 
-    builder.create<moore::VariableOp>(loc, type,
-                                      builder.getStringAttr(var.name), initial);
+    // Collect local temporary variables.
+    auto varOp = builder.create<moore::VariableOp>(
+        loc, type, builder.getStringAttr(var.name), initial);
+    context.valueSymbols.insertIntoScope(context.valueSymbols.getCurScope(),
+                                         &var, varOp);
     return success();
   }