[wasm] Use MachineOperator::Float64Log to implement kExprF64Log.

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 140 matching lines @@
   Add(ExternalReference::f64_atan_wrapper_function(isolate).address(),
       "f64_atan_wrapper");
   Add(ExternalReference::f64_cos_wrapper_function(isolate).address(),
       "f64_cos_wrapper");
   Add(ExternalReference::f64_sin_wrapper_function(isolate).address(),
       "f64_sin_wrapper");
   Add(ExternalReference::f64_tan_wrapper_function(isolate).address(),
       "f64_tan_wrapper");
   Add(ExternalReference::f64_exp_wrapper_function(isolate).address(),
       "f64_exp_wrapper");
-  Add(ExternalReference::f64_log_wrapper_function(isolate).address(),
-      "f64_log_wrapper");
   Add(ExternalReference::f64_pow_wrapper_function(isolate).address(),
       "f64_pow_wrapper");
   Add(ExternalReference::f64_atan2_wrapper_function(isolate).address(),
       "f64_atan2_wrapper");
   Add(ExternalReference::f64_mod_wrapper_function(isolate).address(),
       "f64_mod_wrapper");
   Add(ExternalReference::log_enter_external_function(isolate).address(),
       "Logger::EnterExternal");
   Add(ExternalReference::log_leave_external_function(isolate).address(),
       "Logger::LeaveExternal");
@@ skipping 190 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