Reland "Hydrogenisation of binops"

src/ia32/deoptimizer-ia32.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 194 matching lines @@
   int params = descriptor->register_param_count_;
   if (descriptor->stack_parameter_count_ != NULL) {
     params++;
   }
   output_frame->SetRegister(eax.code(), params);
   output_frame->SetRegister(ebx.code(), handler);
 }
 
 
 void Deoptimizer::CopyDoubleRegisters(FrameDescription* output_frame) {
+  if (!CpuFeatures::IsSupported(SSE2)) return;
   for (int i = 0; i < XMMRegister::kNumAllocatableRegisters; ++i) {
     double double_value = input_->GetDoubleRegister(i);
     output_frame->SetDoubleRegister(i, double_value);
   }
 }
 
 
 bool Deoptimizer::HasAlignmentPadding(JSFunction* function) {
   int parameter_count = function->shared()->formal_parameter_count() + 1;
   unsigned input_frame_size = input_->GetFrameSize();
@@ skipping 209 matching lines @@
   SetFrameSlot(offset, value);
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32