Remove descriptors pointer.

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 6759b19a28868e5c3c0ce134aea8e6211531b3de..28d25c3358c708efc2bc216d5b1ca437ab578601 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -2925,8 +2925,7 @@ void MacroAssembler::LoadInstanceDescriptors(Register map,
            isolate()->factory()->fixed_array_map(),
            &fail,
            DONT_DO_SMI_CHECK);
-  movq(temp, FieldOperand(temp, TransitionArray::kDescriptorsPointerOffset));
-  movq(descriptors, FieldOperand(temp, JSGlobalPropertyCell::kValueOffset));
+  movq(descriptors, FieldOperand(temp, TransitionArray::kDescriptorsOffset));
   jmp(&ok);
 
   bind(&fail);
@@ -2937,8 +2936,8 @@ void MacroAssembler::LoadInstanceDescriptors(Register map,
 
   bind(&load_from_back_pointer);
   movq(temp, FieldOperand(temp, Map::kTransitionsOrBackPointerOffset));
-  movq(temp, FieldOperand(temp, TransitionArray::kDescriptorsPointerOffset));
-  movq(descriptors, FieldOperand(temp, JSGlobalPropertyCell::kValueOffset));
+  movq(descriptors,
+       FieldOperand(temp, TransitionArray::kDescriptorsOffset));

[Jakob Kummerow, 2012/10/11 11:56:25]

nit: fits on one line

[Toon Verwaest, 2012/10/11 12:00:51]

Done.

 
   bind(&ok);
 }