[arm] Share constant pool entries in snapshot.

src/arm/assembler-arm-inl.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 382 matching lines @@
 }
 
 
 void Assembler::deserialization_set_target_internal_reference_at(
     Isolate* isolate, Address pc, Address target, RelocInfo::Mode mode) {
   Memory::Address_at(pc) = target;
 }
 
 
 bool Assembler::is_constant_pool_load(Address pc) {
-  if (CpuFeatures::IsSupported(ARMv7)) {
-    return !Assembler::IsMovW(Memory::int32_at(pc));
-  } else {
-    return !Assembler::IsMovImmed(Memory::int32_at(pc));
-  }
+  return IsLdrPcImmediateOffset(Memory::int32_at(pc));
 }
 
 
 Address Assembler::constant_pool_entry_address(Address pc,
                                                Address constant_pool) {
   DCHECK(Assembler::IsLdrPcImmediateOffset(Memory::int32_at(pc)));
   Instr instr = Memory::int32_at(pc);
   return pc + GetLdrRegisterImmediateOffset(instr) + kPcLoadDelta;
 }
 
@@ skipping 92 matching lines @@
   Address constant_pool = code ? code->constant_pool() : NULL;
   set_target_address_at(isolate, pc, constant_pool, target, icache_flush_mode);
 }
 
 EnsureSpace::EnsureSpace(Assembler* assembler) { assembler->CheckBuffer(); }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_ARM_ASSEMBLER_ARM_INL_H_