Update RyuJIT

dependencies.props

@@ -1,6 +1,6 @@
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <RyuJITVersion>3.0.0-preview-27107-01</RyuJITVersion>
+    <RyuJITVersion>3.0.0-preview-27109-03</RyuJITVersion>
     <ObjectWriterVersion>1.0.0-alpha-26412-0</ObjectWriterVersion>
     <CoreFxVersion>4.6.0-preview.18558.2</CoreFxVersion>
     <CoreFxUapVersion>4.7.0-preview.18558.2</CoreFxUapVersion>

src/ILCompiler.ReadyToRun/src/Compiler/ReadyToRunCodegenCompilation.cs

@@ -80,6 +80,12 @@ protected override void CompileInternal(string outputFile, ObjectDumper dumper)
             }
         }
 
+        internal bool IsInheritanceChainLayoutFixedInCurrentVersionBubble(TypeDesc type)
+        {
+            // TODO: implement
+            return true;
+        }
+
         protected override void ComputeDependencyNodeDependencies(List<DependencyNodeCore<NodeFactory>> obj)
         {
             foreach (DependencyNodeCore<NodeFactory> dependency in obj)

src/JitInterface/src/CorInfoImpl.cs

@@ -1243,6 +1243,10 @@ private uint getHeapClassSize(CORINFO_CLASS_STRUCT_* cls)
 
             Debug.Assert(!type.IsValueType);
             Debug.Assert(type.IsDefType);
+            Debug.Assert(!type.IsString);
+#if READYTORUN
+            Debug.Assert(_compilation.IsInheritanceChainLayoutFixedInCurrentVersionBubble(type));
+#endif
 
             return (uint)((DefType)type).InstanceByteCount.AsInt;
         }
@@ -1256,7 +1260,10 @@ private bool canAllocateOnStack(CORINFO_CLASS_STRUCT_* cls)
 
             bool result = !type.HasFinalizer;
 
-            // TODO: for ready to run, check whether inheritance chain is within the version bubble
+#if READYTORUN
+            if (!_compilation.IsInheritanceChainLayoutFixedInCurrentVersionBubble(type))
+                result = false;
+#endif
 
             return result;
         }
@@ -1338,8 +1345,6 @@ private uint getClassGClayout(CORINFO_CLASS_STRUCT_* cls, byte* gcPtrs)
 
             DefType type = (DefType)HandleToObject(cls);
 
-            Debug.Assert(type.IsValueType);
-
             int pointerSize = PointerSize;
 
             int ptrsCount = AlignmentHelper.AlignUp(type.InstanceFieldSize.AsInt, pointerSize) / pointerSize;