From 413183bad88fdfe8e6a9cdd4984113d82d34ebd0 Mon Sep 17 00:00:00 2001
From: Wilson Snyder <wsnyder@wsnyder.org>
Date: Sun, 4 May 2025 21:25:44 -0400
Subject: [PATCH] Fix localize of coroutines (#5972 partial)

---
 src/V3Localize.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/V3Localize.cpp b/src/V3Localize.cpp
index 5a1014a62..43f890110 100644
--- a/src/V3Localize.cpp
+++ b/src/V3Localize.cpp
@@ -132,6 +132,11 @@ class LocalizeVisitor final : public VNVisitor {
         moveVarScopes();
     }
 
+    void visit(AstCAwait* nodep) override {
+        m_cfuncp->user1(true);  // Mark caller as not a leaf function
+        iterateChildrenConst(nodep);
+    }
+
     void visit(AstCFunc* nodep) override {
         UINFO(4, "  CFUNC " << nodep << endl);
         VL_RESTORER(m_cfuncp);