Enable stub generation using Hydrogen/Lithium (again)

src/frames.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 599 matching lines @@
 
 bool StandardFrame::IsExpressionInsideHandler(int n) const {
   Address address = GetExpressionAddress(n);
   for (StackHandlerIterator it(this, top_handler()); !it.done(); it.Advance()) {
     if (it.handler()->includes(address)) return true;
   }
   return false;
 }
 
 
-void OptimizedFrame::Iterate(ObjectVisitor* v) const {
+void CompiledFrame::Iterate(ObjectVisitor* v) const {
 #ifdef DEBUG
   // Make sure that optimized frames do not contain any stack handlers.
   StackHandlerIterator it(this, top_handler());
   ASSERT(it.done());
 #endif
 
   // Make sure that we're not doing "safe" stack frame iteration. We cannot
   // possibly find pointers in optimized frames in that state.
   ASSERT(!SafeStackFrameIterator::is_active(isolate()));
 
@@ skipping 11 matching lines @@
 
   // Visit the parameters that may be on top of the saved registers.
   if (safepoint_entry.argument_count() > 0) {
     v->VisitPointers(parameters_base,
                      parameters_base + safepoint_entry.argument_count());
     parameters_base += safepoint_entry.argument_count();
   }
 
   // Skip saved double registers.
   if (safepoint_entry.has_doubles()) {
-    parameters_base += DoubleRegister::kNumAllocatableRegisters *
+    parameters_base += DoubleRegister::NumAllocatableRegisters() *
         kDoubleSize / kPointerSize;
   }
 
   // Visit the registers that contain pointers if any.
   if (safepoint_entry.HasRegisters()) {
     for (int i = kNumSafepointRegisters - 1; i >=0; i--) {
       if (safepoint_entry.HasRegisterAt(i)) {
         int reg_stack_index = MacroAssembler::SafepointRegisterStackIndex(i);
         v->VisitPointer(parameters_base + reg_stack_index);
       }
@@ skipping 11 matching lines @@
 
   // Visit pointer spill slots and locals.
   for (unsigned index = 0; index < stack_slots; index++) {
     int byte_index = index >> kBitsPerByteLog2;
     int bit_index = index & (kBitsPerByte - 1);
     if ((safepoint_bits[byte_index] & (1U << bit_index)) != 0) {
       v->VisitPointer(parameters_limit + index);
     }
   }
 
+  // Visit the return address in the callee and incoming arguments.
+  IteratePc(v, pc_address(), code);
+}
+
+
+void StubFrame::Iterate(ObjectVisitor* v) const {
+  CompiledFrame::Iterate(v);
+}
+
+
+void OptimizedFrame::Iterate(ObjectVisitor* v) const {
+  CompiledFrame::Iterate(v);
+
   // Visit the context and the function.
   Object** fixed_base = &Memory::Object_at(
       fp() + JavaScriptFrameConstants::kFunctionOffset);
   Object** fixed_limit = &Memory::Object_at(fp());
   v->VisitPointers(fixed_base, fixed_limit);
-
-  // Visit the return address in the callee and incoming arguments.
-  IteratePc(v, pc_address(), code);
 }
 
 
 bool JavaScriptFrame::IsConstructor() const {
   Address fp = caller_fp();
   if (has_adapted_arguments()) {
     // Skip the arguments adaptor frame and look at the real caller.
     fp = Memory::Address_at(fp + StandardFrameConstants::kCallerFPOffset);
   }
   return IsConstructFrame(fp);
@@ skipping 734 matching lines @@
   ZoneList<StackFrame*> list(10, zone);
   for (StackFrameIterator it; !it.done(); it.Advance()) {
     StackFrame* frame = AllocateFrameCopy(it.frame(), zone);
     list.Add(frame, zone);
   }
   return list.ToVector();
 }
 
 
 } }  // namespace v8::internal