[builtins] Introduce proper Float64Log1p operator.

src/profiler/profile-generator.h

 // Copyright 2011 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_PROFILER_PROFILE_GENERATOR_H_
 #define V8_PROFILER_PROFILE_GENERATOR_H_
 
 #include <map>
 #include "include/v8-profiler.h"
 #include "src/allocation.h"
@@ skipping 96 matching lines @@
   Address instruction_start() const { return instruction_start_; }
   Logger::LogEventsAndTags tag() const { return TagField::decode(bit_field_); }
 
   static const char* const kEmptyNamePrefix;
   static const char* const kEmptyResourceName;
   static const char* const kEmptyBailoutReason;
   static const char* const kNoDeoptReason;
 
  private:
   class TagField : public BitField<Logger::LogEventsAndTags, 0, 8> {};
-  class BuiltinIdField : public BitField<Builtins::Name, 8, 8> {};
+  class BuiltinIdField : public BitField<Builtins::Name, 8, 24> {};
 
   uint32_t bit_field_;
   const char* name_prefix_;
   const char* name_;
   const char* resource_name_;
   int line_number_;
   int column_number_;
   int script_id_;
   int position_;
   const char* bailout_reason_;
@@ skipping 239 matching lines @@
   CodeEntry* unresolved_entry_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileGenerator);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PROFILER_PROFILE_GENERATOR_H_