X87: [builtins] Introduce proper Float64Log1p operator.

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 2bb641fd725781dfb2d74cfea4a33a87b281fb09..e729b04461e2f2d0a15e88fcb5e018c8f0a6ef97 100644
--- a/src/compiler/x87/instruction-selector-x87.cc
+++ b/src/compiler/x87/instruction-selector-x87.cc
@@ -1009,13 +1009,6 @@ 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(kIeee754Float64Log, g.DefineAsFixed(node, stX_0), 0, nullptr)
-      ->MarkAsCall();
-}
-
 void InstructionSelector::VisitFloat32Sqrt(Node* node) {
   X87OperandGenerator g(this);
   Emit(kX87PushFloat32, g.NoOutput(), g.Use(node->InputAt(0)));
@@ -1094,6 +1087,13 @@ void InstructionSelector::VisitFloat32Neg(Node* node) { UNREACHABLE(); }
 
 void InstructionSelector::VisitFloat64Neg(Node* node) { UNREACHABLE(); }
 
+void InstructionSelector::VisitFloat64Ieee754Unop(Node* node,
+                                                  InstructionCode opcode) {
+  X87OperandGenerator g(this);
+  Emit(kX87PushFloat64, g.NoOutput(), g.Use(node->InputAt(0)));
+  Emit(opcode, g.DefineAsFixed(node, stX_0), 0, nullptr)->MarkAsCall();
+}
+
 void InstructionSelector::EmitPrepareArguments(
     ZoneVector<PushParameter>* arguments, const CallDescriptor* descriptor,
     Node* node) {