From 587a359e8c37b1745afdca9442c0eaa23834a9de Mon Sep 17 00:00:00 2001
From: Daniel Grunwald <daniel@danielgrunwald.de>
Date: Sat, 23 Aug 2025 20:05:45 +0200
Subject: [PATCH] Fix #1873: Clear ILRange in CopyPropagation

We are copying an expression from far away, reusing the ILRange would result in incorrect sequence points.
---
 ICSharpCode.Decompiler/IL/Transforms/CopyPropagation.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ICSharpCode.Decompiler/IL/Transforms/CopyPropagation.cs b/ICSharpCode.Decompiler/IL/Transforms/CopyPropagation.cs
index 10435130b..7b45ba662 100644
--- a/ICSharpCode.Decompiler/IL/Transforms/CopyPropagation.cs
+++ b/ICSharpCode.Decompiler/IL/Transforms/CopyPropagation.cs
@@ -165,6 +165,8 @@ namespace ICSharpCode.Decompiler.IL.Transforms
 				{
 					clone.Children[j].ReplaceWith(new LdLoc(uninlinedArgs[j]));
 				}
+				// We are copying an expression from far away, reusing the ILRange would result in incorrect sequence points.
+				clone.SetILRange(new Interval());
 				expr.ReplaceWith(clone);
 			}
 			block.Instructions.RemoveAt(i);