Make sure that on x86 we don't generate SSE2 code in the snapshot.

src/mips/builtins-mips.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 1389 matching lines @@
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
     __ CallRuntime(Runtime::kNotifyOSR, 0);
   }
   __ MultiPop(saved_regs);
   __ Ret();
 }
 
 
 void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
-  CpuFeatures::TryForceFeatureScope scope(VFP3);
-  if (!CpuFeatures::IsSupported(FPU)) {
-    __ Abort("Unreachable code: Cannot optimize without FPU support.");
-    return;
-  }
-
   // Lookup the function in the JavaScript frame and push it as an
   // argument to the on-stack replacement function.
   __ lw(a0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
     __ push(a0);
     __ CallRuntime(Runtime::kCompileForOnStackReplacement, 1);
   }
 
   // If the result was -1 it means that we couldn't optimize the
@@ skipping 502 matching lines @@
   __ bind(&dont_adapt_arguments);
   __ Jump(a3);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS