[builtins] Introduce proper Float64Log1p operator.

src/compiler/x64/instruction-selector-x64.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 <algorithm>
 
 #include "src/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
@@ skipping 1337 matching lines @@
 
 void InstructionSelector::VisitFloat64Min(Node* node) {
   VisitFloatBinop(this, node, kAVXFloat64Min, kSSEFloat64Min);
 }
 
 
 void InstructionSelector::VisitFloat64Abs(Node* node) {
   VisitFloatUnop(this, node, node->InputAt(0), kAVXFloat64Abs, kSSEFloat64Abs);
 }
 
-void InstructionSelector::VisitFloat64Log(Node* node) {
-  X64OperandGenerator g(this);
-  Emit(kIeee754Float64Log, g.DefineAsFixed(node, xmm0),
-       g.UseFixed(node->InputAt(0), xmm0))
-      ->MarkAsCall();
-}
-
 void InstructionSelector::VisitFloat64Sqrt(Node* node) {
   VisitRO(this, node, kSSEFloat64Sqrt);
 }
 
 
 void InstructionSelector::VisitFloat32RoundDown(Node* node) {
   VisitRR(this, node, kSSEFloat32Round | MiscField::encode(kRoundDown));
 }
 
 
@@ skipping 33 matching lines @@
 
 
 void InstructionSelector::VisitFloat64RoundTiesEven(Node* node) {
   VisitRR(this, node, kSSEFloat64Round | MiscField::encode(kRoundToNearest));
 }
 
 void InstructionSelector::VisitFloat32Neg(Node* node) { UNREACHABLE(); }
 
 void InstructionSelector::VisitFloat64Neg(Node* node) { UNREACHABLE(); }
 
+void InstructionSelector::VisitFloat64Ieee754Unop(Node* node,
+                                                  InstructionCode opcode) {
+  X64OperandGenerator g(this);
+  Emit(opcode, g.DefineAsFixed(node, xmm0), g.UseFixed(node->InputAt(0), xmm0))
+      ->MarkAsCall();
+}
+
 void InstructionSelector::EmitPrepareArguments(
     ZoneVector<PushParameter>* arguments, const CallDescriptor* descriptor,
     Node* node) {
   X64OperandGenerator g(this);
 
   // Prepare for C function call.
   if (descriptor->IsCFunctionCall()) {
     Emit(kArchPrepareCallCFunction |
              MiscField::encode(static_cast<int>(descriptor->CParameterCount())),
          0, nullptr, 0, nullptr);
@@ skipping 694 matching lines @@
 // static
 MachineOperatorBuilder::AlignmentRequirements
 InstructionSelector::AlignmentRequirements() {
   return MachineOperatorBuilder::AlignmentRequirements::
       FullUnalignedAccessSupport();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8