X87: Reland [heap] Avoid the use of cells to point from code to new-space objects.

src/x87/macro-assembler-x87.cc

Index: src/x87/macro-assembler-x87.cc
diff --git a/src/x87/macro-assembler-x87.cc b/src/x87/macro-assembler-x87.cc
index ef9691242ae843b491afd1ec5c3411441256845e..a75fc5fa98bd1403bcdd8ff4d53a7485f505c0ca 100644
--- a/src/x87/macro-assembler-x87.cc
+++ b/src/x87/macro-assembler-x87.cc
@@ -2534,37 +2534,15 @@ int MacroAssembler::SafepointRegisterStackIndex(int reg_code) {
 
 void MacroAssembler::LoadHeapObject(Register result,
                                     Handle<HeapObject> object) {
-  AllowDeferredHandleDereference embedding_raw_address;
-  if (isolate()->heap()->InNewSpace(*object)) {
-    Handle<Cell> cell = isolate()->factory()->NewCell(object);
-    mov(result, Operand::ForCell(cell));
-  } else {
-    mov(result, object);
-  }
+  mov(result, object);
 }
 
 
 void MacroAssembler::CmpHeapObject(Register reg, Handle<HeapObject> object) {
-  AllowDeferredHandleDereference using_raw_address;
-  if (isolate()->heap()->InNewSpace(*object)) {
-    Handle<Cell> cell = isolate()->factory()->NewCell(object);
-    cmp(reg, Operand::ForCell(cell));
-  } else {
-    cmp(reg, object);
-  }
-}
-
-
-void MacroAssembler::PushHeapObject(Handle<HeapObject> object) {
-  AllowDeferredHandleDereference using_raw_address;
-  if (isolate()->heap()->InNewSpace(*object)) {
-    Handle<Cell> cell = isolate()->factory()->NewCell(object);
-    push(Operand::ForCell(cell));
-  } else {
-    Push(object);
-  }
+  cmp(reg, object);
 }
 
+void MacroAssembler::PushHeapObject(Handle<HeapObject> object) { Push(object); }
 
 void MacroAssembler::CmpWeakValue(Register value, Handle<WeakCell> cell,
                                   Register scratch) {