Refactor Map::ConstructionCount.

src/arm64/builtins-arm64.cc

 // Copyright 2013 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/v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/codegen.h"
 #include "src/debug.h"
@@ skipping 349 matching lines @@
       __ CompareInstanceType(init_map, x10, JS_FUNCTION_TYPE);
       __ B(eq, &rt_call);
 
       Register constructon_count = x14;
       if (!is_api_function) {
         Label allocate;
         MemOperand bit_field3 =
             FieldMemOperand(init_map, Map::kBitField3Offset);
         // Check if slack tracking is enabled.
         __ Ldr(x4, bit_field3);
-        __ DecodeField<Map::ConstructionCount>(constructon_count, x4);
-        __ Cmp(constructon_count, Operand(JSFunction::kNoSlackTracking));
-        __ B(eq, &allocate);
+        __ DecodeField<Map::Counter>(constructon_count, x4);
+        __ Cmp(constructon_count, Operand(Map::kSlackTrackingCounterEnd));
+        __ B(lt, &allocate);
         // Decrease generous allocation count.
-        __ Subs(x4, x4, Operand(1 << Map::ConstructionCount::kShift));
+        __ Subs(x4, x4, Operand(1 << Map::Counter::kShift));
         __ Str(x4, bit_field3);
-        __ Cmp(constructon_count, Operand(JSFunction::kFinishSlackTracking));
+        __ Cmp(constructon_count, Operand(Map::kSlackTrackingCounterEnd));
         __ B(ne, &allocate);
 
         // Push the constructor and map to the stack, and the constructor again
         // as argument to the runtime call.
         __ Push(constructor, init_map, constructor);
         __ CallRuntime(Runtime::kFinalizeInstanceSize, 1);
         __ Pop(init_map, constructor);
-        __ Mov(constructon_count, Operand(JSFunction::kNoSlackTracking));
+        __ Mov(constructon_count, Operand(Map::kSlackTrackingCounterEnd - 1));
         __ Bind(&allocate);
       }
 
       // Now allocate the JSObject on the heap.
       Register obj_size = x3;
       Register new_obj = x4;
       __ Ldrb(obj_size, FieldMemOperand(init_map, Map::kInstanceSizeOffset));
       if (create_memento) {
         __ Add(x7, obj_size,
                Operand(AllocationMemento::kSize / kPointerSize));
@@ skipping 32 matching lines @@
               Map::kInObjectPropertiesByte * kBitsPerByte, kBitsPerByte);
 
       // Calculate number of property fields in the object.
       Register prop_fields = x6;
       __ Sub(prop_fields, obj_size, JSObject::kHeaderSize / kPointerSize);
 
       if (!is_api_function) {
         Label no_inobject_slack_tracking;
 
         // Check if slack tracking is enabled.
-        __ Cmp(constructon_count, Operand(JSFunction::kNoSlackTracking));
-        __ B(eq, &no_inobject_slack_tracking);
+        __ Cmp(constructon_count, Operand(Map::kSlackTrackingCounterEnd));
+        __ B(lt, &no_inobject_slack_tracking);
         constructon_count = NoReg;
 
         // Fill the pre-allocated fields with undef.
         __ FillFields(first_prop, prealloc_fields, filler);
 
         // Update first_prop register to be the offset of the first field after
         // pre-allocated fields.
         __ Add(first_prop, first_prop,
                Operand(prealloc_fields, LSL, kPointerSizeLog2));
 
@@ skipping 1106 matching lines @@
     __ Unreachable();
   }
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM