Optimize various forms of slice.call(arguments, ...)

src/objects.h

 // 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.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include "src/allocation.h"
 #include "src/assert-scope.h"
 #include "src/builtins.h"
@@ skipping 7020 matching lines @@
 // on the object (the one the id is set for), and a label.
 //
 // Installation of ids for the selected builtin functions is handled
 // by the bootstrapper.
 #define FUNCTIONS_WITH_ID_LIST(V)                     \
   V(Array.prototype, indexOf, ArrayIndexOf)           \
   V(Array.prototype, lastIndexOf, ArrayLastIndexOf)   \
   V(Array.prototype, push, ArrayPush)                 \
   V(Array.prototype, pop, ArrayPop)                   \
   V(Array.prototype, shift, ArrayShift)               \
+  V(Array.prototype, slice, ArraySlice)               \
   V(Function.prototype, apply, FunctionApply)         \
+  V(Function.prototype, call, FunctionCall)           \
   V(String.prototype, charCodeAt, StringCharCodeAt)   \
   V(String.prototype, charAt, StringCharAt)           \
   V(String, fromCharCode, StringFromCharCode)         \
   V(Math, floor, MathFloor)                           \
   V(Math, round, MathRound)                           \
   V(Math, ceil, MathCeil)                             \
   V(Math, abs, MathAbs)                               \
   V(Math, log, MathLog)                               \
   V(Math, exp, MathExp)                               \
   V(Math, sqrt, MathSqrt)                             \
   V(Math, pow, MathPow)                               \
   V(Math, max, MathMax)                               \
   V(Math, min, MathMin)                               \
   V(Math, imul, MathImul)
 
 enum BuiltinFunctionId {
   kArrayCode,
 #define DECLARE_FUNCTION_ID(ignored1, ignore2, name)    \
   k##name,
   FUNCTIONS_WITH_ID_LIST(DECLARE_FUNCTION_ID)
 #undef DECLARE_FUNCTION_ID
   // Fake id for a special case of Math.pow. Note, it continues the
   // list of math functions.
   kMathPowHalf,
   // Installed only on --harmony-maths.
-  kMathClz32
+  kMathClz32,
+
+  kBuiltinsLength
 };
 
 
 // SharedFunctionInfo describes the JSFunction information that can be
 // shared by multiple instances of the function.
 class SharedFunctionInfo: public HeapObject {
  public:
   // [name]: Function name.
   DECL_ACCESSORS(name, Object)
 
@@ skipping 136 matching lines @@
   DECL_BOOLEAN_ACCESSORS(is_expression)
 
   // Is this function a top-level function (scripts, evals).
   DECL_BOOLEAN_ACCESSORS(is_toplevel)
 
   // Bit field containing various information collected by the compiler to
   // drive optimization.
   inline int compiler_hints();
   inline void set_compiler_hints(int value);
 
+  // Whether the function should use optimistic optimizations that
+  // cannot be easily ensured to work due to e.g. lack of type feedback
+  inline bool use_optimistic_optimizations();
+  inline void disable_optimistic_optimizations();
+  DECL_BOOLEAN_ACCESSORS(optimistic_optimizations)
+
   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);
@@ skipping 264 matching lines @@
     kInlineBuiltin,
     kBoundFunction,
     kIsAnonymous,
     kNameShouldPrintAsAnonymous,
     kIsFunction,
     kDontOptimize,
     kDontInline,
     kDontCache,
     kDontFlush,
     kIsGenerator,
+    kOptimisticOptimizations,
     kCompilerHintsCount  // Pseudo entry
   };
 
   class DeoptCountBits: public BitField<int, 0, 4> {};
   class OptReenableTriesBits: public BitField<int, 4, 18> {};
   class ICAgeBits: public BitField<int, 22, 8> {};
 
   class OptCountBits: public BitField<int, 0, 22> {};
   class DisabledOptimizationReasonBits: public BitField<int, 22, 8> {};
 
@@ skipping 3731 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_