[builtins] Migrate Math.log to TurboFan.

src/compiler/mips/instruction-selector-mips.cc

Index: src/compiler/mips/instruction-selector-mips.cc
diff --git a/src/compiler/mips/instruction-selector-mips.cc b/src/compiler/mips/instruction-selector-mips.cc
index 8be2539444fea4e94955de993620fff953f31750..92ef9d426cd7c2151e70cfeb31391fac998c96f4 100644
--- a/src/compiler/mips/instruction-selector-mips.cc
+++ b/src/compiler/mips/instruction-selector-mips.cc
@@ -876,6 +876,11 @@ 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);