[builtins] Introduce proper Float64Atan and Float64Atan2 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 49 matching lines @@
   Add(ExternalReference::interpreter_dispatch_table_address(isolate).address(),
       "Interpreter::dispatch_table_address");
   Add(ExternalReference::interpreter_dispatch_counters(isolate).address(),
       "Interpreter::interpreter_dispatch_counters");
   Add(ExternalReference::address_of_negative_infinity().address(),
       "LDoubleConstant::negative_infinity");
   Add(ExternalReference::power_double_double_function(isolate).address(),
       "power_double_double_function");
   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::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(),
@@ skipping 285 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