Get rid of AllocationFlags::TAG_OBJECT

src/arm/codegen-arm.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/arm/codegen-arm.h"
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/arm/simulator-arm.h"
 #include "src/codegen.h"
@@ skipping 432 matching lines @@
 
   __ push(lr);
   __ ldr(length, FieldMemOperand(elements, FixedArray::kLengthOffset));
   // length: number of elements (smi-tagged)
 
   // Allocate new FixedDoubleArray.
   // Use lr as a temporary register.
   __ mov(lr, Operand(length, LSL, 2));
   __ add(lr, lr, Operand(FixedDoubleArray::kHeaderSize));
   __ Allocate(lr, array, elements, scratch2, &gc_required, DOUBLE_ALIGNMENT);
+  __ sub(array, array, Operand(kHeapObjectTag));
   // array: destination FixedDoubleArray, not tagged as heap object.
   __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
   // r4: source FixedArray.
 
   // Set destination FixedDoubleArray's length and map.
   __ LoadRoot(scratch2, Heap::kFixedDoubleArrayMapRootIndex);
   __ str(length, MemOperand(array, FixedDoubleArray::kLengthOffset));
   // Update receiver's map.
   __ str(scratch2, MemOperand(array, HeapObject::kMapOffset));
 
@@ skipping 124 matching lines @@
 
   // Allocate new FixedArray.
   // Re-use value and target_map registers, as they have been saved on the
   // stack.
   Register array_size = value;
   Register allocate_scratch = target_map;
   __ mov(array_size, Operand(FixedDoubleArray::kHeaderSize));
   __ add(array_size, array_size, Operand(length, LSL, 1));
   __ Allocate(array_size, array, allocate_scratch, scratch, &gc_required,
               NO_ALLOCATION_FLAGS);
-  // array: destination FixedArray, not tagged as heap object
+  // array: destination FixedArray, tagged as heap object
   // Set destination FixedDoubleArray's length and map.
   __ LoadRoot(scratch, Heap::kFixedArrayMapRootIndex);
-  __ str(length, MemOperand(array, FixedDoubleArray::kLengthOffset));
-  __ str(scratch, MemOperand(array, HeapObject::kMapOffset));
+  __ str(length, FieldMemOperand(array, FixedDoubleArray::kLengthOffset));
+  __ str(scratch, FieldMemOperand(array, HeapObject::kMapOffset));
+
+  __ sub(array, array, Operand(kHeapObjectTag));
 
   // Prepare for conversion loop.
   Register src_elements = elements;
   Register dst_elements = target_map;
   Register dst_end = length;
   Register heap_number_map = scratch;
   __ add(src_elements, elements,
          Operand(FixedDoubleArray::kHeaderSize - kHeapObjectTag + 4));
   __ add(dst_elements, array, Operand(FixedArray::kHeaderSize));
   __ add(dst_end, dst_elements, Operand(length, LSL, 1));
@@ skipping 335 matching lines @@
     patcher.masm()->ldr(pc, MemOperand(pc, -4));
     patcher.masm()->emit_code_stub_address(stub);
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM