[turbofan] Change Float64Max/Float64Min to JavaScript semantics.

src/compiler/js-builtin-reducer.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/js-builtin-reducer.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/objects-inl.h"
@@ skipping 335 matching lines @@
   return NoChange();
 }
 
 // ES6 section 20.2.2.24 Math.max ( value1, value2, ...values )
 Reduction JSBuiltinReducer::ReduceMathMax(Node* node) {
   JSCallReduction r(node);
   if (r.InputsMatchZero()) {
     // Math.max() -> -Infinity
     return Replace(jsgraph()->Constant(-V8_INFINITY));
   }
-  if (r.InputsMatchOne(Type::PlainPrimitive())) {
-    // Math.max(a:plain-primitive) -> ToNumber(a)
+  if (r.InputsMatchAll(Type::PlainPrimitive())) {
+    // Math.max(a:plain-primitive, b:plain-primitive, ...)
     Node* value = ToNumber(r.GetJSCallInput(0));
-    return Replace(value);
-  }
-  if (r.InputsMatchAll(Type::Integral32())) {
-    // Math.max(a:int32, b:int32, ...)
-    Node* value = r.GetJSCallInput(0);
     for (int i = 1; i < r.GetJSCallArity(); i++) {
-      Node* const input = r.GetJSCallInput(i);
-      value = graph()->NewNode(
-          common()->Select(MachineRepresentation::kNone),
-          graph()->NewNode(simplified()->NumberLessThan(), input, value), value,
-          input);
+      Node* input = ToNumber(r.GetJSCallInput(i));
+      value = graph()->NewNode(simplified()->NumberMax(), value, input);
     }
     return Replace(value);
   }
   return NoChange();
 }
 
 // ES6 section 20.2.2.25 Math.min ( value1, value2, ...values )
 Reduction JSBuiltinReducer::ReduceMathMin(Node* node) {
   JSCallReduction r(node);
   if (r.InputsMatchZero()) {
     // Math.min() -> Infinity
     return Replace(jsgraph()->Constant(V8_INFINITY));
   }
-  if (r.InputsMatchOne(Type::PlainPrimitive())) {
-    // Math.min(a:plain-primitive) -> ToNumber(a)
+  if (r.InputsMatchAll(Type::PlainPrimitive())) {
+    // Math.min(a:plain-primitive, b:plain-primitive, ...)
     Node* value = ToNumber(r.GetJSCallInput(0));
-    return Replace(value);
-  }
-  if (r.InputsMatchAll(Type::Integral32())) {
-    // Math.min(a:int32, b:int32, ...)
-    Node* value = r.GetJSCallInput(0);
     for (int i = 1; i < r.GetJSCallArity(); i++) {
-      Node* const input = r.GetJSCallInput(i);
-      value = graph()->NewNode(
-          common()->Select(MachineRepresentation::kNone),
-          graph()->NewNode(simplified()->NumberLessThan(), input, value), input,
-          value);
+      Node* input = ToNumber(r.GetJSCallInput(i));
+      value = graph()->NewNode(simplified()->NumberMin(), value, input);
     }
     return Replace(value);
   }
   return NoChange();
 }
 
 // ES6 section 20.2.2.26 Math.pow ( x, y )
 Reduction JSBuiltinReducer::ReduceMathPow(Node* node) {
   JSCallReduction r(node);
   if (r.InputsMatchTwo(Type::PlainPrimitive(), Type::PlainPrimitive())) {
@@ skipping 290 matching lines @@
 }
 
 
 SimplifiedOperatorBuilder* JSBuiltinReducer::simplified() const {
   return jsgraph()->simplified();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8