[builtins] Introduce proper base::ieee754::log.

test/unittests/compiler/machine-operator-reducer-unittest.cc

 // Copyright 2014 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/compiler/machine-operator-reducer.h"
 #include "src/base/bits.h"
 #include "src/base/division-by-constant.h"
+#include "src/base/ieee754.h"
 #include "src/compiler/js-graph.h"
-#include "src/compiler/machine-operator-reducer.h"
 #include "src/compiler/typer.h"
 #include "src/conversions-inl.h"
 #include "test/unittests/compiler/graph-unittest.h"
 #include "test/unittests/compiler/node-test-utils.h"
 #include "testing/gmock-support.h"
 
 using testing::AllOf;
 using testing::BitEq;
 using testing::Capture;
 using testing::CaptureEq;
@@ skipping 1382 matching lines @@
 
 // -----------------------------------------------------------------------------
 // Float64Log
 
 TEST_F(MachineOperatorReducerTest, Float64LogWithConstant) {
   TRACED_FOREACH(double, x, kFloat64Values) {
     Reduction const r =
         Reduce(graph()->NewNode(machine()->Float64Log(), Float64Constant(x)));
     ASSERT_TRUE(r.Changed());
     EXPECT_THAT(r.replacement(),
-                IsFloat64Constant(NanSensitiveDoubleEq(std::log(x))));
+                IsFloat64Constant(NanSensitiveDoubleEq(base::ieee754::log(x))));
   }
 }
 
 // -----------------------------------------------------------------------------
 // Float64InsertLowWord32
 
 TEST_F(MachineOperatorReducerTest, Float64InsertLowWord32WithConstant) {
   TRACED_FOREACH(double, x, kFloat64Values) {
     TRACED_FOREACH(uint32_t, y, kUint32Values) {
       Reduction const r =
@@ skipping 234 matching lines @@
     Reduction r = Reduce(node);
     ASSERT_TRUE(r.Changed());
     EXPECT_THAT(r.replacement(),
                 IsStore(rep, base, index, value, effect, control));
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8