[turbofan] Change Float64Max/Float64Min to JavaScript semantics.

src/compiler/simplified-lowering.h

 // 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.
 
 #ifndef V8_COMPILER_SIMPLIFIED_LOWERING_H_
 #define V8_COMPILER_SIMPLIFIED_LOWERING_H_
 
 #include "src/compiler/js-graph.h"
 #include "src/compiler/machine-operator.h"
 #include "src/compiler/node.h"
@@ skipping 14 matching lines @@
 class SourcePositionTable;
 
 class SimplifiedLowering final {
  public:
   SimplifiedLowering(JSGraph* jsgraph, Zone* zone,
                      SourcePositionTable* source_positions);
   ~SimplifiedLowering() {}
 
   void LowerAllNodes();
 
+  void DoMax(Node* node, Operator const* op, MachineRepresentation rep);
+  void DoMin(Node* node, Operator const* op, MachineRepresentation rep);
   void DoJSToNumberTruncatesToFloat64(Node* node,
                                       RepresentationSelector* selector);
   void DoJSToNumberTruncatesToWord32(Node* node,
                                      RepresentationSelector* selector);
   // TODO(turbofan): The representation can be removed once the result of the
   // representation analysis is stored in the node bounds.
   void DoLoadBuffer(Node* node, MachineRepresentation rep,
                     RepresentationChanger* changer);
   void DoStoreBuffer(Node* node);
   void DoShift(Node* node, Operator const* op, Type* rhs_type);
@@ skipping 37 matching lines @@
   CommonOperatorBuilder* common() { return jsgraph()->common(); }
   MachineOperatorBuilder* machine() { return jsgraph()->machine(); }
   SimplifiedOperatorBuilder* simplified() { return jsgraph()->simplified(); }
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_SIMPLIFIED_LOWERING_H_