X87: [builtins] Migrate Math.log to TurboFan.

src/compiler/x87/instruction-selector-x87.cc

Index: src/compiler/x87/instruction-selector-x87.cc
diff --git a/src/compiler/x87/instruction-selector-x87.cc b/src/compiler/x87/instruction-selector-x87.cc
index 2b6583ca780f30a7c54bffc3f29522c2728b21a7..289356af47f50064d1fb9d7086194c0c0afcbefa 100644
--- a/src/compiler/x87/instruction-selector-x87.cc
+++ b/src/compiler/x87/instruction-selector-x87.cc
@@ -1009,6 +1009,11 @@ void InstructionSelector::VisitFloat64Abs(Node* node) {
   Emit(kX87Float64Abs, g.DefineAsFixed(node, stX_0), 0, nullptr);
 }
 
+void InstructionSelector::VisitFloat64Log(Node* node) {
+  X87OperandGenerator g(this);
+  Emit(kX87PushFloat64, g.NoOutput(), g.Use(node->InputAt(0)));
+  Emit(kX87Float64Log, g.DefineAsFixed(node, stX_0), 0, nullptr);
+}
 
 void InstructionSelector::VisitFloat32Sqrt(Node* node) {
   X87OperandGenerator g(this);