PPC/s390: Reland [heap] Avoid the use of cells to point from code to new-space objects.

src/s390/macro-assembler-s390.cc

Index: src/s390/macro-assembler-s390.cc
diff --git a/src/s390/macro-assembler-s390.cc b/src/s390/macro-assembler-s390.cc
index ca48614cc4190d443163de00a790b2227a67ec42..0b5bbb4d1a23409bb50bf94da92de26f7aa035eb 100644
--- a/src/s390/macro-assembler-s390.cc
+++ b/src/s390/macro-assembler-s390.cc
@@ -170,19 +170,7 @@ void MacroAssembler::Push(Handle<Object> handle) {
 }
 
 void MacroAssembler::Move(Register dst, Handle<Object> value) {
-  AllowDeferredHandleDereference smi_check;
-  if (value->IsSmi()) {
-    LoadSmiLiteral(dst, reinterpret_cast<Smi*>(*value));
-  } else {
-    DCHECK(value->IsHeapObject());
-    if (isolate()->heap()->InNewSpace(*value)) {
-      Handle<Cell> cell = isolate()->factory()->NewCell(value);
-      mov(dst, Operand(cell));
-      LoadP(dst, FieldMemOperand(dst, Cell::kValueOffset));
-    } else {
-      mov(dst, Operand(value));
-    }
-  }
+  mov(dst, Operand(value));
 }
 
 void MacroAssembler::Move(Register dst, Register src, Condition cond) {