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src/arm64/simulator-arm64.h

 // Copyright 2013 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_ARM64_SIMULATOR_ARM64_H_
 #define V8_ARM64_SIMULATOR_ARM64_H_
 
 #include <stdarg.h>
 #include <vector>
 
@@ skipping 193 matching lines @@
                      Isolate* isolate);
 
   // A wrapper class that stores an argument for one of the above Call
   // functions.
   //
   // Only arguments up to 64 bits in size are supported.
   class CallArgument {
    public:
     template<typename T>
     explicit CallArgument(T argument) {
+      bits_ = 0;
       ASSERT(sizeof(argument) <= sizeof(bits_));
       memcpy(&bits_, &argument, sizeof(argument));
       type_ = X_ARG;
     }
 
     explicit CallArgument(double argument) {
       ASSERT(sizeof(argument) == sizeof(bits_));
       memcpy(&bits_, &argument, sizeof(argument));
       type_ = D_ARG;
     }
@@ skipping 604 matching lines @@
   static void UnregisterCTryCatch() {
     Simulator::current(Isolate::Current())->PopAddress();
   }
 };
 
 #endif  // !defined(USE_SIMULATOR)
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM64_SIMULATOR_ARM64_H_