Sort functions in polymorphic calls based on overall profiling ticks and inlined AST size.

src/objects.h

 // Copyright 2012 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
@@ skipping 7222 matching lines @@
 
   // Bit field containing various information collected by the compiler to
   // drive optimization.
   inline int compiler_hints();
   inline void set_compiler_hints(int value);
 
   inline int ast_node_count();
   inline void set_ast_node_count(int count);
 
   inline int profiler_ticks();
+  inline void set_profiler_ticks(int ticks);
 
   // Inline cache age is used to infer whether the function survived a context
   // disposal or not. In the former case we reset the opt_count.
   inline int ic_age();
   inline void set_ic_age(int age);
 
   // Indicates if this function can be lazy compiled.
   // This is used to determine if we can safely flush code from a function
   // when doing GC if we expect that the function will no longer be used.
   DECL_BOOLEAN_ACCESSORS(allows_lazy_compilation)
@@ skipping 153 matching lines @@
   static const int kConstructStubOffset = kScopeInfoOffset + kPointerSize;
   static const int kInstanceClassNameOffset =
       kConstructStubOffset + kPointerSize;
   static const int kFunctionDataOffset =
       kInstanceClassNameOffset + kPointerSize;
   static const int kScriptOffset = kFunctionDataOffset + kPointerSize;
   static const int kDebugInfoOffset = kScriptOffset + kPointerSize;
   static const int kInferredNameOffset = kDebugInfoOffset + kPointerSize;
   static const int kInitialMapOffset =
       kInferredNameOffset + kPointerSize;
-  // ast_node_count is a Smi field. It could be grouped with another Smi field
-  // into a PSEUDO_SMI_ACCESSORS pair (on x64), if one becomes available.
-  static const int kAstNodeCountOffset =
-      kInitialMapOffset + kPointerSize;
 #if V8_HOST_ARCH_32_BIT
   // Smi fields.
   static const int kLengthOffset =
-      kAstNodeCountOffset + kPointerSize;
+      kInitialMapOffset + kPointerSize;
   static const int kFormalParameterCountOffset = kLengthOffset + kPointerSize;
   static const int kExpectedNofPropertiesOffset =
       kFormalParameterCountOffset + kPointerSize;
   static const int kNumLiteralsOffset =
       kExpectedNofPropertiesOffset + kPointerSize;
   static const int kStartPositionAndTypeOffset =
       kNumLiteralsOffset + kPointerSize;
   static const int kEndPositionOffset =
       kStartPositionAndTypeOffset + kPointerSize;
   static const int kFunctionTokenPositionOffset =
       kEndPositionOffset + kPointerSize;
   static const int kCompilerHintsOffset =
       kFunctionTokenPositionOffset + kPointerSize;
   static const int kOptCountAndBailoutReasonOffset =
       kCompilerHintsOffset + kPointerSize;
   static const int kCountersOffset =
       kOptCountAndBailoutReasonOffset + kPointerSize;
+  static const int kAstNodeCountOffset =
+      kCountersOffset + kPointerSize;
+  static const int kProfilerTicksOffset =
+      kAstNodeCountOffset + kPointerSize;
 
   // Total size.
-  static const int kSize = kCountersOffset + kPointerSize;
+  static const int kSize = kProfilerTicksOffset + kPointerSize;
 #else
   // The only reason to use smi fields instead of int fields
   // is to allow iteration without maps decoding during
   // garbage collections.
   // To avoid wasting space on 64-bit architectures we use
   // the following trick: we group integer fields into pairs
   // First integer in each pair is shifted left by 1.
   // By doing this we guarantee that LSB of each kPointerSize aligned
   // word is not set and thus this word cannot be treated as pointer
   // to HeapObject during old space traversal.
   static const int kLengthOffset =
-      kAstNodeCountOffset + kPointerSize;
+      kInitialMapOffset + kPointerSize;
   static const int kFormalParameterCountOffset =
       kLengthOffset + kIntSize;
 
   static const int kExpectedNofPropertiesOffset =
       kFormalParameterCountOffset + kIntSize;
   static const int kNumLiteralsOffset =
       kExpectedNofPropertiesOffset + kIntSize;
 
   static const int kEndPositionOffset =
       kNumLiteralsOffset + kIntSize;
   static const int kStartPositionAndTypeOffset =
       kEndPositionOffset + kIntSize;
 
   static const int kFunctionTokenPositionOffset =
       kStartPositionAndTypeOffset + kIntSize;
   static const int kCompilerHintsOffset =
       kFunctionTokenPositionOffset + kIntSize;
 
   static const int kOptCountAndBailoutReasonOffset =
       kCompilerHintsOffset + kIntSize;
-
   static const int kCountersOffset =
       kOptCountAndBailoutReasonOffset + kIntSize;
 
+  static const int kAstNodeCountOffset =
+      kCountersOffset + kIntSize;
+  static const int kProfilerTicksOffset =
+      kAstNodeCountOffset + kIntSize;
+
   // Total size.
-  static const int kSize = kCountersOffset + kIntSize;
+  static const int kSize = kProfilerTicksOffset + kIntSize;
 
 #endif
 
   // The construction counter for inobject slack tracking is stored in the
   // most significant byte of compiler_hints which is otherwise unused.
   // Its offset depends on the endian-ness of the architecture.
 #if defined(V8_TARGET_LITTLE_ENDIAN)
   static const int kConstructionCountOffset = kCompilerHintsOffset + 3;
 #elif defined(V8_TARGET_BIG_ENDIAN)
   static const int kConstructionCountOffset = kCompilerHintsOffset + 0;
@@ skipping 3787 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_