| Index: src/arm/code-stubs-arm.cc
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| diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
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| index ef2dbb3892fe6c86e6e6481dab59f318af073686..8ad30895a77b47b8145d32203079682b41ddf952 100644
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| --- a/src/arm/code-stubs-arm.cc
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| +++ b/src/arm/code-stubs-arm.cc
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| @@ -161,6 +161,30 @@ static void EmitCheckForHeapNumber(MacroAssembler* masm, Register operand,
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|  }
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|  
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|  
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| +void HydrogenCodeStub::GenerateLightweightMiss(MacroAssembler* masm) {
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| +  // Update the static counter each time a new code stub is generated.
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| +  Isolate* isolate = masm->isolate();
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| +  isolate->counters()->code_stubs()->Increment();
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| +
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| +  CodeStubInterfaceDescriptor* descriptor = GetInterfaceDescriptor(isolate);
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| +  int param_count = descriptor->register_param_count_;
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| +  {
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| +    // Call the runtime system in a fresh internal frame.
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| +    FrameScope scope(masm, StackFrame::INTERNAL);
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| +    ASSERT(descriptor->register_param_count_ == 0 ||
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| +           r0.is(descriptor->register_params_[param_count - 1]));
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| +    // Push arguments
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| +    for (int i = 0; i < param_count; ++i) {
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| +      __ push(descriptor->register_params_[i]);
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| +    }
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| +    ExternalReference miss = descriptor->miss_handler_;
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| +    __ CallExternalReference(miss, descriptor->register_param_count_);
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| +  }
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| +
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| +  __ Ret();
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| +}
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| +
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| +
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|  void ToNumberStub::Generate(MacroAssembler* masm) {
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|    // The ToNumber stub takes one argument in eax.
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|    Label check_heap_number, call_builtin;
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| 
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