Lazy deoptimization for comparisons in Turbofan.

src/compiler/linkage.h

Index: src/compiler/linkage.h
diff --git a/src/compiler/linkage.h b/src/compiler/linkage.h
index 9f3d8347e986c472b5d682b02c0cdf2e4b9a3a30..6ec0a15e8a2103872fa7dd9a897abc4990c29d4c 100644
--- a/src/compiler/linkage.h
+++ b/src/compiler/linkage.h
@@ -147,14 +147,12 @@ class Linkage : public ZoneObject {
   CallDescriptor* GetIncomingDescriptor() { return incoming_; }
   CallDescriptor* GetJSCallDescriptor(int parameter_count);
   static CallDescriptor* GetJSCallDescriptor(int parameter_count, Zone* zone);
-  CallDescriptor* GetRuntimeCallDescriptor(
-      Runtime::FunctionId function, int parameter_count,
-      Operator::Property properties,
-      CallDescriptor::Flags flags = CallDescriptor::kNoFlags);
+  CallDescriptor* GetRuntimeCallDescriptor(Runtime::FunctionId function,
+                                           int parameter_count,
+                                           Operator::Property properties);
   static CallDescriptor* GetRuntimeCallDescriptor(Runtime::FunctionId function,
                                                   int parameter_count,
                                                   Operator::Property properties,
-                                                  CallDescriptor::Flags flags,
                                                   Zone* zone);
 
   CallDescriptor* GetStubCallDescriptor(
@@ -191,6 +189,8 @@ class Linkage : public ZoneObject {
 
   CompilationInfo* info() const { return info_; }
 
+  static bool NeedsFrameState(Runtime::FunctionId function);
+
  private:
   CompilationInfo* info_;
   CallDescriptor* incoming_;