Second step in allocating objects in generated code on ARM

src/arm/macro-assembler-arm.h

-// Copyright 2006-2008 the V8 project authors. All rights reserved.
+// Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
@@ skipping 48 matching lines @@
   IN_C_ENTRY
 };
 
 enum HandlerType {
   TRY_CATCH_HANDLER,
   TRY_FINALLY_HANDLER,
   JS_ENTRY_HANDLER
 };
 
 
+// Flags used for the AllocateObjectInNewSpace functions.
+enum AllocationFlags {
+  // No special flags.
+  NO_ALLOCATION_FLAGS = 0,
+  // Return the pointer to the allocated already tagged as a heap object.
+  TAG_OBJECT = 1 << 0,
+  // The content of the result register already contains the allocation top in
+  // new space.
+  RESULT_CONTAINS_TOP = 1 << 1
+};
+
+
 // MacroAssembler implements a collection of frequently used macros.
 class MacroAssembler: public Assembler {
  public:
   MacroAssembler(void* buffer, int size);
 
   // ---------------------------------------------------------------------------
   // Low-level helpers for compiler
 
   // Jump, Call, and Ret pseudo instructions implementing inter-working
  private:
@@ skipping 112 matching lines @@
 
   // Allocate an object in new space. The object_size is specified in words (not
   // bytes). If the new space is exhausted control continues at the gc_required
   // label. The allocated object is returned in result. If the flag
   // tag_allocated_object is true the result is tagged as as a heap object.
   void AllocateObjectInNewSpace(int object_size,
                                 Register result,
                                 Register scratch1,
                                 Register scratch2,
                                 Label* gc_required,
-                                bool tag_allocated_object);
+                                AllocationFlags flags);
   void AllocateObjectInNewSpace(Register object_size,
                                 Register result,
                                 Register scratch1,
                                 Register scratch2,
                                 Label* gc_required,
-                                bool tag_allocated_object);
+                                AllocationFlags flags);
 
   // Undo allocation in new space. The object passed and objects allocated after
   // it will no longer be allocated. The caller must make sure that no pointers
   // are left to the object(s) no longer allocated as they would be invalid when
   // allocation is undone.
   void UndoAllocationInNewSpace(Register object, Register scratch);
 
   // ---------------------------------------------------------------------------
   // Support functions.
 
@@ skipping 156 matching lines @@
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_MACRO_ASSEMBLER_ARM_H_