Only reference constant root list entries in the snapshot.

src/arm/macro-assembler-arm.cc

 // Copyright 2012 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 <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
@@ skipping 421 matching lines @@
     mov(destination, Operand(root), LeaveCC, cond);
     return;
   }
   ldr(destination, MemOperand(kRootRegister, index << kPointerSizeLog2), cond);
 }
 
 
 void MacroAssembler::StoreRoot(Register source,
                                Heap::RootListIndex index,
                                Condition cond) {
+  DCHECK(Heap::RootCanBeWrittenAfterInitialization(index));
   str(source, MemOperand(kRootRegister, index << kPointerSizeLog2), cond);
 }
 
 
 void MacroAssembler::InNewSpace(Register object,
                                 Register scratch,
                                 Condition cond,
                                 Label* branch) {
   DCHECK(cond == eq || cond == ne);
   and_(scratch, object, Operand(ExternalReference::new_space_mask(isolate())));
@@ skipping 3445 matching lines @@
     }
   }
   if (mag.shift > 0) mov(result, Operand(result, ASR, mag.shift));
   add(result, result, Operand(dividend, LSR, 31));
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM