Restore saved caller FP registers on stub failure

src/x64/deoptimizer-x64.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 108 matching lines @@
   }
 }
 
 
 bool Deoptimizer::HasAlignmentPadding(JSFunction* function) {
   // There is no dynamic alignment padding on x64 in the input frame.
   return false;
 }
 
 
+Code* Deoptimizer::NotifyStubFailureBuiltin() {
+  return isolate_->builtins()->builtin(Builtins::kNotifyStubFailureSaveDoubles);
+}
+
+
 #define __ masm()->
 
 void Deoptimizer::EntryGenerator::Generate() {
   GeneratePrologue();
 
   // Save all general purpose registers before messing with them.
   const int kNumberOfRegisters = Register::kNumRegisters;
 
   const int kDoubleRegsSize = kDoubleSize *
       XMMRegister::NumAllocatableRegisters();
@@ skipping 190 matching lines @@
   SetFrameSlot(offset, value);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64