Inline Math.max and Math.min in crankshaft.

src/hydrogen-instructions.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 937 matching lines @@
         range->Union(OperandAt(i)->range());
       }
       return range;
     }
   } else {
     return HValue::InferRange();
   }
 }
 
 
+Range* HMathMinMax::InferRange() {
+  Range* a = left()->range();
+  Range* b = right()->range();
+  Range* res = NULL;
+  if (op_ == kMathMin) {
+    res = new Range((a->lower() < b->lower()) ? a->lower() : b->lower(),
+                    (a->upper() < b->upper()) ? a->upper() : b->upper());
+    res->set_can_be_minus_zero(a->CanBeMinusZero() || b->CanBeMinusZero());
+  } else {
+    res = new Range((a->lower() > b->lower()) ? a->lower() : b->lower(),
+                    (a->upper() > b->upper()) ? a->upper() : b->upper());
+    res->set_can_be_minus_zero(a->CanBeMinusZero() && b->CanBeMinusZero());
+  }
+  return res;
+}
+
+
 Range* HAdd::InferRange() {
   if (representation().IsInteger32()) {
     Range* a = left()->range();
     Range* b = right()->range();
     Range* res = a->Copy();
     if (!res->AddAndCheckOverflow(b)) {
       ClearFlag(kCanOverflow);
     }
     bool m0 = a->CanBeMinusZero() && b->CanBeMinusZero();
     res->set_can_be_minus_zero(m0);
@@ skipping 1138 matching lines @@
 
 
 void HCheckPrototypeMaps::Verify() {
   HInstruction::Verify();
   ASSERT(HasNoUses());
 }
 
 #endif
 
 } }  // namespace v8::internal