Imported Upstream version 5.12.0.220

Former-commit-id: c477e03582759447177c6d4bf412cd2355aad476

external/linker/corebuild/integration/ILLink.CustomSteps/ClearInitLocals.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 
 using Mono.Linker;
 using Mono.Linker.Steps;
@@ -8,17 +9,41 @@ namespace ILLink.CustomSteps
 {
 	public class ClearInitLocalsStep : BaseStep
 	{
-		protected override void ProcessAssembly(AssemblyDefinition assembly)
+		HashSet<string> _assemblies;
+
+		protected override void Process ()
 		{
+			string parameterName = "ClearInitLocalsAssemblies";
+
+			if (Context.HasParameter (parameterName)) {
+				string parameter = Context.GetParameter (parameterName);
+				_assemblies = new HashSet<string> (parameter.Split(','), StringComparer.OrdinalIgnoreCase);
+			}
+		}
+
+		protected override void ProcessAssembly (AssemblyDefinition assembly)
+		{
+			if ((_assemblies != null) && (!_assemblies.Contains (assembly.Name.Name))) {
+				return;
+			}
+
+			bool changed = false;
+
 			foreach (ModuleDefinition module in assembly.Modules) {
 				foreach (TypeDefinition type in module.Types) {
 					foreach (MethodDefinition method in type.Methods) {
 						if (method.Body != null) {
-							method.Body.InitLocals = false;
+							if (method.Body.InitLocals) {
+								method.Body.InitLocals = false;
+								changed = true;
+							}
 						}
 					}
 				}
 			}
+
+			if (changed && (Annotations.GetAction (assembly) == AssemblyAction.Copy))
+					Annotations.SetAction (assembly, AssemblyAction.Save);
 		}
 	}
 }