[arm64] Turn off the default NaN mode on arm64.

src/arm64/macro-assembler-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_MACRO_ASSEMBLER_ARM64_H_
 #define V8_ARM64_MACRO_ASSEMBLER_ARM64_H_
 
 #include <vector>
 
 #include "src/arm64/assembler-arm64.h"
@@ skipping 847 matching lines @@
   //
   // This method asserts that StackPointer() is not csp, since the call does
   // not make sense in that context.
   inline void SyncSystemStackPointer();
 
   // Helpers ------------------------------------------------------------------
   // Root register.
   inline void InitializeRootRegister();
 
   void AssertFPCRState(Register fpcr = NoReg);
-  void ConfigureFPCR();
   void CanonicalizeNaN(const FPRegister& dst, const FPRegister& src);
   void CanonicalizeNaN(const FPRegister& reg) {
     CanonicalizeNaN(reg, reg);
   }
 
   // Load an object from the root table.
   void LoadRoot(CPURegister destination,
                 Heap::RootListIndex index);
   // Store an object to the root table.
   void StoreRoot(Register source,
@@ skipping 1397 matching lines @@
 #error "Unsupported option"
 #define CODE_COVERAGE_STRINGIFY(x) #x
 #define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x)
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 #endif  // V8_ARM64_MACRO_ASSEMBLER_ARM64_H_