Revert of [builtins] Introduce proper Float64Exp operator.

src/compiler/instruction-selector.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/compiler/instruction-selector.h"
 
 #include <limits>
 
 #include "src/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
@@ skipping 1120 matching lines @@
     case IrOpcode::kFloat64Min:
       return MarkAsFloat64(node), VisitFloat64Min(node);
     case IrOpcode::kFloat64Max:
       return MarkAsFloat64(node), VisitFloat64Max(node);
     case IrOpcode::kFloat64Abs:
       return MarkAsFloat64(node), VisitFloat64Abs(node);
     case IrOpcode::kFloat64Atan:
       return MarkAsFloat64(node), VisitFloat64Atan(node);
     case IrOpcode::kFloat64Atan2:
       return MarkAsFloat64(node), VisitFloat64Atan2(node);
-    case IrOpcode::kFloat64Exp:
-      return MarkAsFloat64(node), VisitFloat64Exp(node);
     case IrOpcode::kFloat64Log:
       return MarkAsFloat64(node), VisitFloat64Log(node);
     case IrOpcode::kFloat64Log1p:
       return MarkAsFloat64(node), VisitFloat64Log1p(node);
     case IrOpcode::kFloat64Log2:
       return MarkAsFloat64(node), VisitFloat64Log2(node);
     case IrOpcode::kFloat64Log10:
       return MarkAsFloat64(node), VisitFloat64Log10(node);
     case IrOpcode::kFloat64Sqrt:
       return MarkAsFloat64(node), VisitFloat64Sqrt(node);
@@ skipping 101 matching lines @@
 }
 
 void InstructionSelector::VisitFloat64Atan(Node* node) {
   VisitFloat64Ieee754Unop(node, kIeee754Float64Atan);
 }
 
 void InstructionSelector::VisitFloat64Atan2(Node* node) {
   VisitFloat64Ieee754Binop(node, kIeee754Float64Atan2);
 }
 
-void InstructionSelector::VisitFloat64Exp(Node* node) {
-  VisitFloat64Ieee754Unop(node, kIeee754Float64Exp);
-}
-
 void InstructionSelector::VisitFloat64Log(Node* node) {
   VisitFloat64Ieee754Unop(node, kIeee754Float64Log);
 }
 
 void InstructionSelector::VisitFloat64Log1p(Node* node) {
   VisitFloat64Ieee754Unop(node, kIeee754Float64Log1p);
 }
 
 void InstructionSelector::VisitFloat64Log2(Node* node) {
   VisitFloat64Ieee754Unop(node, kIeee754Float64Log2);
@@ skipping 617 matching lines @@
   return new (instruction_zone()) FrameStateDescriptor(
       instruction_zone(), state_info.type(), state_info.bailout_id(),
       state_info.state_combine(), parameters, locals, stack,
       state_info.shared_info(), outer_state);
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8