Check that external references are registered in the serializer.

src/mips/codegen-mips.cc

 // 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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS
 
 #include "src/codegen.h"
 #include "src/macro-assembler.h"
@@ skipping 1081 matching lines @@
   DCHECK(!input.is(result));
   DCHECK(!input.is(double_scratch1));
   DCHECK(!input.is(double_scratch2));
   DCHECK(!result.is(double_scratch1));
   DCHECK(!result.is(double_scratch2));
   DCHECK(!double_scratch1.is(double_scratch2));
   DCHECK(!temp1.is(temp2));
   DCHECK(!temp1.is(temp3));
   DCHECK(!temp2.is(temp3));
   DCHECK(ExternalReference::math_exp_constants(0).address() != NULL);
+  DCHECK(!masm->serializer_enabled());  // External references not serializable.
 
   Label zero, infinity, done;
 
   __ li(temp3, Operand(ExternalReference::math_exp_constants(0)));
 
   __ ldc1(double_scratch1, ExpConstant(0, temp3));
   __ BranchF(&zero, NULL, ge, double_scratch1, input);
 
   __ ldc1(double_scratch2, ExpConstant(1, temp3));
   __ BranchF(&infinity, NULL, ge, input, double_scratch2);
@@ skipping 129 matching lines @@
     patcher.masm()->nop();  // Pad the empty space.
   }
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS