[builtins] Introduce proper Float64Log2 and Float64Log10 operators.

src/external-reference-table.cc

 // Copyright 2016 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.
 
 #include "src/external-reference-table.h"
 
 #include "src/accessors.h"
 #include "src/assembler.h"
 #include "src/counters.h"
 #include "src/deoptimizer.h"
@@ skipping 57 matching lines @@
   Add(ExternalReference::power_double_int_function(isolate).address(),
       "power_double_int_function");
   Add(ExternalReference::ieee754_atan_function(isolate).address(),
       "base::ieee754::atan");
   Add(ExternalReference::ieee754_atan2_function(isolate).address(),
       "base::ieee754::atan2");
   Add(ExternalReference::ieee754_log_function(isolate).address(),
       "base::ieee754::log");
   Add(ExternalReference::ieee754_log1p_function(isolate).address(),
       "base::ieee754::log1p");
+  Add(ExternalReference::ieee754_log2_function(isolate).address(),
+      "base::ieee754::log2");
+  Add(ExternalReference::ieee754_log10_function(isolate).address(),
+      "base::ieee754::log10");
   Add(ExternalReference::store_buffer_top(isolate).address(),
       "store_buffer_top");
   Add(ExternalReference::address_of_the_hole_nan().address(), "the_hole_nan");
   Add(ExternalReference::get_date_field_function(isolate).address(),
       "JSDate::GetField");
   Add(ExternalReference::date_cache_stamp(isolate).address(),
       "date_cache_stamp");
   Add(ExternalReference::address_of_pending_message_obj(isolate).address(),
       "address_of_pending_message_obj");
   Add(ExternalReference::get_make_code_young_function(isolate).address(),
@@ skipping 277 matching lines @@
   for (int entry = 0; entry < kDeoptTableSerializeEntryCount; ++entry) {
     Address address = Deoptimizer::GetDeoptimizationEntry(
         isolate, entry, Deoptimizer::LAZY,
         Deoptimizer::CALCULATE_ENTRY_ADDRESS);
     Add(address, "lazy_deopt");
   }
 }
 
 }  // namespace internal
 }  // namespace v8