diff --git a/eng/config/rulesets/NonShipping.ruleset b/eng/config/rulesets/NonShipping.ruleset
index fbf3292e54b06bf1a872887928b4fd7e32261fb9..d2c0144fdadc31145467ab2140ef2d383e475676 100644
--- a/eng/config/rulesets/NonShipping.ruleset
+++ b/eng/config/rulesets/NonShipping.ruleset
@@ -32,6 +32,12 @@
     <!-- DiagnosticId must be unique across analyzers - suppress for non-shipping/test projects -->
     <Rule Id="RS1019" Action="None" />
 
+    <!-- Configure generated code analysis - suppress for non-shipping/test projects -->
+    <Rule Id="RS1025" Action="None" />
+
+    <!-- Enable concurrent execution - suppress for non-shipping/test projects -->
+    <Rule Id="RS1026" Action="None" />
+
     <!-- Do not use generic CodeAction.Create to create CodeAction - not useful for tests -->
     <Rule Id="RS0005" Action="None" />
   </Rules>
diff --git a/src/Compilers/Core/Portable/DiagnosticAnalyzer/CompilerDiagnosticAnalyzer.cs b/src/Compilers/Core/Portable/DiagnosticAnalyzer/CompilerDiagnosticAnalyzer.cs
index 292f303a89d585d15dcf5fac0522d5b21607b438..b5d2589126890d1d1bbc32e967272b08c41a314f 100644
--- a/src/Compilers/Core/Portable/DiagnosticAnalyzer/CompilerDiagnosticAnalyzer.cs
+++ b/src/Compilers/Core/Portable/DiagnosticAnalyzer/CompilerDiagnosticAnalyzer.cs
@@ -35,6 +35,9 @@ public sealed override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics
 
         public sealed override void Initialize(AnalysisContext context)
         {
+            context.EnableConcurrentExecution();
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.ReportDiagnostics);
+
             context.RegisterCompilationStartAction(c =>
             {
                 var analyzer = new CompilationAnalyzer(c.Compilation);
diff --git a/src/EditorFeatures/Core/Implementation/RenameTracking/RenameTrackingDiagnosticAnalyzer.cs b/src/EditorFeatures/Core/Implementation/RenameTracking/RenameTrackingDiagnosticAnalyzer.cs
index ff2d72475c83604355701edea71636a88b5d17a0..0ac285422b48f08369688c79e1a6f44cdd32f5f9 100644
--- a/src/EditorFeatures/Core/Implementation/RenameTracking/RenameTrackingDiagnosticAnalyzer.cs
+++ b/src/EditorFeatures/Core/Implementation/RenameTracking/RenameTrackingDiagnosticAnalyzer.cs
@@ -26,8 +26,14 @@ public DiagnosticAnalyzerCategory GetAnalyzerCategory()
         public bool OpenFileOnly(Workspace workspace)
             => true;
 
+#pragma warning disable RS1026 // Enable concurrent execution
         public override void Initialize(AnalysisContext context)
-            => context.RegisterSyntaxTreeAction(AnalyzeSyntaxTree);
+#pragma warning restore RS1026 // Enable concurrent execution
+        {
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.ReportDiagnostics);
+
+            context.RegisterSyntaxTreeAction(AnalyzeSyntaxTree);
+        }
 
         private void AnalyzeSyntaxTree(SyntaxTreeAnalysisContext context)
         {
diff --git a/src/Features/Core/Portable/Diagnostics/Analyzers/DocumentDiagnosticAnalyzer.cs b/src/Features/Core/Portable/Diagnostics/Analyzers/DocumentDiagnosticAnalyzer.cs
index 74f53620b1c0e57320cf3b1d6df74c5b9dd860c6..fd18ae27082a308992f4b1c57338724b75971ace 100644
--- a/src/Features/Core/Portable/Diagnostics/Analyzers/DocumentDiagnosticAnalyzer.cs
+++ b/src/Features/Core/Portable/Diagnostics/Analyzers/DocumentDiagnosticAnalyzer.cs
@@ -20,7 +20,11 @@ internal abstract class DocumentDiagnosticAnalyzer : DiagnosticAnalyzer
         /// <summary>
         /// it is not allowed one to implement both DocumentDiagnosticAnalzyer and DiagnosticAnalyzer
         /// </summary>
+#pragma warning disable RS1026 // Enable concurrent execution
+#pragma warning disable RS1025 // Configure generated code analysis
         public sealed override void Initialize(AnalysisContext context)
+#pragma warning restore RS1025 // Configure generated code analysis
+#pragma warning restore RS1026 // Enable concurrent execution
         {
         }
 
diff --git a/src/Features/Core/Portable/Diagnostics/Analyzers/ProjectDiagnosticAnalyzer.cs b/src/Features/Core/Portable/Diagnostics/Analyzers/ProjectDiagnosticAnalyzer.cs
index a70ba68e640fab2629296c757a504edad658e602..f69727f9ba774577c4d54b1ac80e941031e3bbab 100644
--- a/src/Features/Core/Portable/Diagnostics/Analyzers/ProjectDiagnosticAnalyzer.cs
+++ b/src/Features/Core/Portable/Diagnostics/Analyzers/ProjectDiagnosticAnalyzer.cs
@@ -18,7 +18,11 @@ internal abstract class ProjectDiagnosticAnalyzer : DiagnosticAnalyzer
         /// <summary>
         /// it is not allowed one to implement both ProjectDiagnosticAnalzyer and DiagnosticAnalyzer
         /// </summary>
+#pragma warning disable RS1026 // Enable concurrent execution
+#pragma warning disable RS1025 // Configure generated code analysis
         public sealed override void Initialize(AnalysisContext context)
+#pragma warning restore RS1025 // Configure generated code analysis
+#pragma warning restore RS1026 // Enable concurrent execution
         {
         }
 
diff --git a/src/Features/Core/Portable/Diagnostics/Analyzers/UnboundIdentifiersDiagnosticAnalyzerBase.cs b/src/Features/Core/Portable/Diagnostics/Analyzers/UnboundIdentifiersDiagnosticAnalyzerBase.cs
index ccaf517881a5f198946d80435866350869e49775..786be27f5b1daa8c0ab3ed0b98f05d294f58ed2d 100644
--- a/src/Features/Core/Portable/Diagnostics/Analyzers/UnboundIdentifiersDiagnosticAnalyzerBase.cs
+++ b/src/Features/Core/Portable/Diagnostics/Analyzers/UnboundIdentifiersDiagnosticAnalyzerBase.cs
@@ -26,6 +26,7 @@ internal abstract class UnboundIdentifiersDiagnosticAnalyzerBase<TLanguageKindEn
         public override void Initialize(AnalysisContext context)
         {
             context.EnableConcurrentExecution();
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.ReportDiagnostics);
 
             context.RegisterSyntaxNodeAction(AnalyzeNode, this.SyntaxKindsOfInterest.ToArray());
         }
diff --git a/src/Features/Core/Portable/EmbeddedLanguages/AbstractEmbeddedLanguageDiagnosticAnalyzer.cs b/src/Features/Core/Portable/EmbeddedLanguages/AbstractEmbeddedLanguageDiagnosticAnalyzer.cs
index 47f820797cac130d737807fb34fd5c70672f723b..adfd8eea7bb09076cbaa1763a587e193fa00701e 100644
--- a/src/Features/Core/Portable/EmbeddedLanguages/AbstractEmbeddedLanguageDiagnosticAnalyzer.cs
+++ b/src/Features/Core/Portable/EmbeddedLanguages/AbstractEmbeddedLanguageDiagnosticAnalyzer.cs
@@ -53,6 +53,9 @@ public bool OpenFileOnly(Workspace workspace)
 
         public override void Initialize(AnalysisContext context)
         {
+            context.EnableConcurrentExecution();
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.ReportDiagnostics);
+
             foreach (var analyzer in _analyzers)
             {
                 analyzer.Initialize(context);
diff --git a/src/Features/Core/Portable/RemoveUnnecessaryImports/AbstractRemoveUnnecessaryImportsDiagnosticAnalyzer.cs b/src/Features/Core/Portable/RemoveUnnecessaryImports/AbstractRemoveUnnecessaryImportsDiagnosticAnalyzer.cs
index 2f18dda40db10c13e86b82386e2a9fff4313b4e9..cee3c36a99581b67e796d120a63f21aecf900b27 100644
--- a/src/Features/Core/Portable/RemoveUnnecessaryImports/AbstractRemoveUnnecessaryImportsDiagnosticAnalyzer.cs
+++ b/src/Features/Core/Portable/RemoveUnnecessaryImports/AbstractRemoveUnnecessaryImportsDiagnosticAnalyzer.cs
@@ -73,6 +73,7 @@ public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics
         public override void Initialize(AnalysisContext context)
         {
             context.EnableConcurrentExecution();
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.ReportDiagnostics);
 
             context.RegisterSemanticModelAction(this.AnalyzeSemanticModel);
         }
diff --git a/src/Features/Core/Portable/ValidateFormatString/AbstractValidateFormatStringDiagnosticAnalyzer.cs b/src/Features/Core/Portable/ValidateFormatString/AbstractValidateFormatStringDiagnosticAnalyzer.cs
index ba26fbed6b0c06c205d9f0b83a2662b6c516f65b..309d66ff267d04c05eadabf0d31b819420a2d4f6 100644
--- a/src/Features/Core/Portable/ValidateFormatString/AbstractValidateFormatStringDiagnosticAnalyzer.cs
+++ b/src/Features/Core/Portable/ValidateFormatString/AbstractValidateFormatStringDiagnosticAnalyzer.cs
@@ -65,6 +65,7 @@ public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics
         public override void Initialize(AnalysisContext context)
         {
             context.EnableConcurrentExecution();
+            context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.ReportDiagnostics);
 
             context.RegisterCompilationStartAction(startContext =>
             {