Require SSE2 support for the ia32 port.

src/deoptimizer.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_DEOPTIMIZER_H_
 #define V8_DEOPTIMIZER_H_
 
 #include "v8.h"
 
 #include "allocation.h"
@@ skipping 369 matching lines @@
                                         CodeStubInterfaceDescriptor* desc);
 
   // Fill the given output frame's double registers with the original values
   // from the input frame's double registers.
   void CopyDoubleRegisters(FrameDescription* output_frame);
 
   // Determines whether the input frame contains alignment padding by looking
   // at the dynamic alignment state slot inside the frame.
   bool HasAlignmentPadding(JSFunction* function);
 
-  // Select the version of NotifyStubFailure builtin that either saves or
-  // doesn't save the double registers depending on CPU features.
-  Code* NotifyStubFailureBuiltin();
-
   Isolate* isolate_;
   JSFunction* function_;
   Code* compiled_code_;
   unsigned bailout_id_;
   BailoutType bailout_type_;
   Address from_;
   int fp_to_sp_delta_;
   int has_alignment_padding_;
 
   // Input frame description.
@@ skipping 562 matching lines @@
   Object** parameters_;
   Object** expression_stack_;
   int source_position_;
 
   friend class Deoptimizer;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_DEOPTIMIZER_H_