Require smi for keyed store to smi.

src/ia32/lithium-ia32.cc

 // Copyright 2012 the V8 project authors. 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.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2326 matching lines @@
       LOperand* object = UseRegisterAtStart(instr->elements());
       LOperand* val = NULL;
       if (CpuFeatures::IsSafeForSnapshot(SSE2)) {
         val = UseRegisterAtStart(instr->value());
       } else if (!instr->IsConstantHoleStore()) {
         val = UseX87TopOfStack(instr->value());
       }
       LOperand* key = UseRegisterOrConstantAtStart(instr->key());
       return new(zone()) LStoreKeyed(object, key, val);
     } else {
-      ASSERT(instr->value()->representation().IsTagged());
+      ASSERT(instr->value()->representation().IsSmiOrTagged());
       bool needs_write_barrier = instr->NeedsWriteBarrier();
 
       LOperand* obj = UseRegister(instr->elements());
       LOperand* val;
       LOperand* key;
       if (needs_write_barrier) {
         val = UseTempRegister(instr->value());
         key = UseTempRegister(instr->key());
       } else {
         val = UseRegisterOrConstantAtStart(instr->value());
@@ skipping 441 matching lines @@
 LInstruction* LChunkBuilder::DoLoadFieldByIndex(HLoadFieldByIndex* instr) {
   LOperand* object = UseRegister(instr->object());
   LOperand* index = UseTempRegister(instr->index());
   return DefineSameAsFirst(new(zone()) LLoadFieldByIndex(object, index));
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32