[arm][turbofan] Use NEON for unaligned float64 memory accesses

src/compiler/arm/instruction-scheduler-arm.cc

 // Copyright 2015 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/compiler/instruction-scheduler.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
@@ skipping 198 matching lines @@
     case kArmSimd1x4AnyTrue:
     case kArmSimd1x4AllTrue:
     case kArmSimd1x8AnyTrue:
     case kArmSimd1x8AllTrue:
     case kArmSimd1x16AnyTrue:
     case kArmSimd1x16AllTrue:
       return kNoOpcodeFlags;
 
     case kArmVldrF32:
     case kArmVldrF64:
+    case kArmVld1F64:
     case kArmLdrb:
     case kArmLdrsb:
     case kArmLdrh:
     case kArmLdrsh:
     case kArmLdr:
       return kIsLoadOperation;
 
     case kArmVstrF32:
     case kArmVstrF64:
+    case kArmVst1F64:
     case kArmStrb:
     case kArmStrh:
     case kArmStr:
     case kArmPush:
     case kArmPoke:
       return kHasSideEffect;
 
 #define CASE(Name) case k##Name:
     COMMON_ARCH_OPCODE_LIST(CASE)
 #undef CASE
       // Already covered in architecture independent code.
       UNREACHABLE();
   }
 
   UNREACHABLE();
   return kNoOpcodeFlags;
 }
 
 
 int InstructionScheduler::GetInstructionLatency(const Instruction* instr) {
   // TODO(all): Add instruction cost modeling.
   return 1;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8