PPC: [builtins] Migrate Math.log to TurboFan.

src/compiler/ppc/instruction-selector-ppc.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/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 #include "src/ppc/frames-ppc.h"
 
@@ skipping 1292 matching lines @@
 
 void InstructionSelector::VisitFloat32Abs(Node* node) {
   VisitRR(this, kPPC_AbsDouble | MiscField::encode(1), node);
 }
 
 
 void InstructionSelector::VisitFloat64Abs(Node* node) {
   VisitRR(this, kPPC_AbsDouble, node);
 }
 
+void InstructionSelector::VisitFloat64Log(Node* node) {
+  PPCOperandGenerator g(this);
+  Emit(kPPC_LogDouble, g.DefineAsFixed(node, d1),
+       g.UseFixed(node->InputAt(0), d1))->MarkAsCall();
+}
 
 void InstructionSelector::VisitFloat32Sqrt(Node* node) {
   VisitRR(this, kPPC_SqrtDouble | MiscField::encode(1), node);
 }
 
 
 void InstructionSelector::VisitFloat64Sqrt(Node* node) {
   VisitRR(this, kPPC_SqrtDouble, node);
 }
 
@@ skipping 674 matching lines @@
 // static
 MachineOperatorBuilder::AlignmentRequirements
 InstructionSelector::AlignmentRequirements() {
   return MachineOperatorBuilder::AlignmentRequirements::
       FullUnalignedAccessSupport();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8