From 4f50bd9f510a55882029599797f3834c6e3b40ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20Strehovsk=C3=BD?=
 <MichalStrehovsky@users.noreply.github.com>
Date: Wed, 13 Aug 2025 11:55:21 +0200
Subject: [PATCH] Skip generating debug info for deduplicated nodes

---
 .../Compiler/ObjectWriter/ObjectWriter.cs                  | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/ObjectWriter/ObjectWriter.cs b/src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/ObjectWriter/ObjectWriter.cs
index 0f7df6d4ebff2f..6db2bc20b01b25 100644
--- a/src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/ObjectWriter/ObjectWriter.cs
+++ b/src/coreclr/tools/aot/ILCompiler.Compiler/Compiler/ObjectWriter/ObjectWriter.cs
@@ -517,6 +517,13 @@ private void EmitObject(string objectFilePath, IReadOnlyCollection<DependencyNod
                         continue;
                     }
 
+                    ISymbolNode symbolNode = node as ISymbolNode;
+                    ISymbolNode deduplicatedSymbolNode = _nodeFactory.ObjectInterner.GetDeduplicatedSymbol(_nodeFactory, symbolNode);
+                    if (deduplicatedSymbolNode != symbolNode)
+                    {
+                        continue;
+                    }
+
                     // Ensure any allocated MethodTables have debug info
                     if (node is ConstructedEETypeNode methodTable)
                     {