Generate a custom OSR entrypoint for OSR compiles on all platforms, and transition to optimized cod…

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 1196 matching lines @@
   V(kNoCasesLeft, "no cases left")                                            \
   V(kNoEmptyArraysHereInEmitFastAsciiArrayJoin,                               \
     "No empty arrays here in EmitFastAsciiArrayJoin")                         \
   V(kNonInitializerAssignmentToConst,                                         \
     "non-initializer assignment to const")                                    \
   V(kNonSmiIndex, "Non-smi index")                                            \
   V(kNonSmiKeyInArrayLiteral, "Non-smi key in array literal")                 \
   V(kNonSmiValue, "Non-smi value")                                            \
   V(kNotEnoughVirtualRegistersForValues,                                      \
     "not enough virtual registers for values")                                \
+  V(kNotEnoughSpillSlotsForOsr,                                               \
+    "not enough spill slots for OSR")                                         \
   V(kNotEnoughVirtualRegistersRegalloc,                                       \
     "not enough virtual registers (regalloc)")                                \
   V(kObjectFoundInSmiOnlyArray, "object found in smi-only array")             \
   V(kObjectLiteralWithComplexProperty,                                        \
     "Object literal with complex property")                                   \
   V(kOddballInStringTableIsNotUndefinedOrTheHole,                             \
     "oddball in string table is not undefined or the hole")                   \
   V(kOperandIsASmiAndNotAName, "Operand is a smi and not a name")             \
   V(kOperandIsASmiAndNotAString, "Operand is a smi and not a string")         \
   V(kOperandIsASmi, "Operand is a smi")                                       \
@@ skipping 5742 matching lines @@
   void MarkForConcurrentRecompilation();
   void MarkForInstallingRecompiledCode();
   void MarkInRecompileQueue();
 
   // Helpers to compile this function.  Returns true on success, false on
   // failure (e.g., stack overflow during compilation).
   static bool EnsureCompiled(Handle<JSFunction> function,
                              ClearExceptionFlag flag);
   static bool CompileLazy(Handle<JSFunction> function,
                           ClearExceptionFlag flag);
+  static Handle<Code> CompileOsr(Handle<JSFunction> function,
+                                 BailoutId osr_ast_id,
+                                 ClearExceptionFlag flag);
   static bool CompileOptimized(Handle<JSFunction> function,
-                               BailoutId osr_ast_id,
                                ClearExceptionFlag flag);
 
   // Tells whether or not the function is already marked for lazy
   // recompilation.
   inline bool IsMarkedForLazyRecompilation();
   inline bool IsMarkedForConcurrentRecompilation();
   inline bool IsMarkedForInstallingRecompiledCode();
 
   // Tells whether or not the function is on the concurrent recompilation queue.
   inline bool IsInRecompileQueue();
@@ skipping 3217 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_