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

src/objects.cc

 // Copyright 2013 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 9446 matching lines @@
   } else {
     ASSERT(function->shared()->allows_lazy_compilation());
     CompilationInfoWithZone info(function);
     result = CompileLazyHelper(&info, flag);
     ASSERT(!result || function->is_compiled());
   }
   return result;
 }
 
 
+Handle<Code> JSFunction::CompileOsr(Handle<JSFunction> function,
+                                  BailoutId osr_ast_id,
+                                  ClearExceptionFlag flag) {
+  CompilationInfoWithZone info(function);
+  info.SetOptimizing(osr_ast_id);
+  if (CompileLazyHelper(&info, flag)) {
+    ASSERT(function->code() != *info.code());
+    return info.code();
+  } else {
+    return Handle<Code>::null();
+  }
+}
+
+
 bool JSFunction::CompileOptimized(Handle<JSFunction> function,
-                                  BailoutId osr_ast_id,
                                   ClearExceptionFlag flag) {
   CompilationInfoWithZone info(function);
-  info.SetOptimizing(osr_ast_id);
+  info.SetOptimizing(BailoutId::None());
   return CompileLazyHelper(&info, flag);
 }
 
 
 bool JSFunction::EnsureCompiled(Handle<JSFunction> function,
                                 ClearExceptionFlag flag) {
   return function->is_compiled() || CompileLazy(function, flag);
 }
 
 
@@ skipping 6490 matching lines @@
 
 void PropertyCell::AddDependentCode(Handle<Code> code) {
   Handle<DependentCode> codes = DependentCode::Insert(
       Handle<DependentCode>(dependent_code()),
       DependentCode::kPropertyCellChangedGroup, code);
   if (*codes != dependent_code()) set_dependent_code(*codes);
 }
 
 
 } }  // namespace v8::internal