[builtins] Migrate Math.log to TurboFan.

src/compiler/mips/instruction-selector-mips.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/base/bits.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 
@@ skipping 858 matching lines @@
 
 void InstructionSelector::VisitFloat32Abs(Node* node) {
   VisitRR(this, kMipsAbsS, node);
 }
 
 
 void InstructionSelector::VisitFloat64Abs(Node* node) {
   VisitRR(this, kMipsAbsD, node);
 }
 
+void InstructionSelector::VisitFloat64Log(Node* node) {
+  MipsOperandGenerator g(this);
+  Emit(kMipsLogD, g.DefineAsFixed(node, f0), g.UseFixed(node->InputAt(0), f12))
+      ->MarkAsCall();
+}
 
 void InstructionSelector::VisitFloat32Sqrt(Node* node) {
   VisitRR(this, kMipsSqrtS, node);
 }
 
 
 void InstructionSelector::VisitFloat64Sqrt(Node* node) {
   VisitRR(this, kMipsSqrtD, node);
 }
 
@@ skipping 672 matching lines @@
     DCHECK(IsMipsArchVariant(kLoongson) || IsMipsArchVariant(kMips32r1) ||
            IsMipsArchVariant(kMips32r2));
     return MachineOperatorBuilder::AlignmentRequirements::
         NoUnalignedAccessSupport();
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8