Track heap objects.

src/ia32/lithium-codegen-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 4221 matching lines @@
       if (!IsInteger32(operand_value)) {
         DeoptimizeIf(no_condition, instr->environment());
       }
     } else {
       Register value = ToRegister(instr->value());
       __ SmiTag(value);
       if (!instr->hydrogen()->value()->range()->IsInSmiRange()) {
         DeoptimizeIf(overflow, instr->environment());
       }
     }
+  } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) {
+    if (instr->value()->IsConstantOperand()) {
+      LConstantOperand* operand_value = LConstantOperand::cast(instr->value());
+      if (IsInteger32(operand_value)) {
+        DeoptimizeIf(no_condition, instr->environment());
+      }
+    } else {
+      if (!instr->hydrogen()->value()->type().IsHeapObject()) {
+        Register value = ToRegister(instr->value());
+        __ test(value, Immediate(kSmiTagMask));
+        DeoptimizeIf(zero, instr->environment());
+      }
+    }
   } else if (FLAG_track_double_fields && representation.IsDouble()) {
     ASSERT(transition.is_null());
     ASSERT(instr->is_in_object());
     ASSERT(!instr->hydrogen()->NeedsWriteBarrier());
     if (CpuFeatures::IsSupported(SSE2)) {
       CpuFeatureScope scope(masm(), SSE2);
       XMMRegister value = ToDoubleRegister(instr->value());
       __ movdbl(FieldOperand(object, offset), value);
     } else {
       __ fstp_d(FieldOperand(object, offset));
@@ skipping 2251 matching lines @@
                               FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32