Security: disable nontemporals.

src/arm64/decoder-arm64-inl.h

 // Copyright 2014 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_DECODER_ARM64_INL_H_
 #define V8_ARM64_DECODER_ARM64_INL_H_
 
 #include "src/arm64/decoder-arm64.h"
 #include "src/globals.h"
 #include "src/utils.h"
@@ skipping 213 matching lines @@
         }
       } else {
         if ((instr->Bits(31, 30) == 0x3) ||
             (instr->Mask(0xC4400000) == 0x40000000)) {
           V::VisitUnallocated(instr);
         } else {
           if (instr->Bit(23) == 0) {
             if (instr->Mask(0xC4400000) == 0xC0400000) {
               V::VisitUnallocated(instr);
             } else {
-              V::VisitLoadStorePairNonTemporal(instr);
+              // Nontemporals are unimplemented.
+              V::VisitUnimplemented(instr);
             }
           } else {
             V::VisitLoadStorePairPostIndex(instr);
           }
         }
       }
     } else {
       if (instr->Bit(29) == 0) {
         if (instr->Mask(0xC4000000) == 0xC4000000) {
           V::VisitUnallocated(instr);
@@ skipping 394 matching lines @@
 void Decoder<V>::DecodeAdvSIMDDataProcessing(Instruction* instr) {
   // TODO(all): Implement Advanced SIMD data processing instruction decode.
   DCHECK(instr->Bits(27, 25) == 0x7);
   V::VisitUnimplemented(instr);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM64_DECODER_ARM64_INL_H_