Lazily initialize fast_sqrt() and pass an Isolate parameter to it

src/crankshaft/hydrogen-instructions.cc

 // Copyright 2012 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/crankshaft/hydrogen-instructions.h"
 
 #include "src/base/bits.h"
 #include "src/base/safe_math.h"
 #include "src/crankshaft/hydrogen-infer-representation.h"
 #include "src/double.h"
@@ skipping 4066 matching lines @@
           break;
       }
     }
     switch (op) {
       case kMathExp:
         lazily_initialize_fast_exp(isolate);
         return H_CONSTANT_DOUBLE(fast_exp(d, isolate));
       case kMathLog:
         return H_CONSTANT_DOUBLE(std::log(d));
       case kMathSqrt:
-        return H_CONSTANT_DOUBLE(fast_sqrt(d));
+        lazily_initialize_fast_sqrt(isolate);
+        return H_CONSTANT_DOUBLE(fast_sqrt(d, isolate));
       case kMathPowHalf:
         return H_CONSTANT_DOUBLE(power_double_double(d, 0.5));
       case kMathAbs:
         return H_CONSTANT_DOUBLE((d >= 0.0) ? d + 0.0 : -d);
       case kMathRound:
         // -0.5 .. -0.0 round to -0.0.
         if ((d >= -0.5 && Double(d).Sign() < 0)) return H_CONSTANT_DOUBLE(-0.0);
         // Doubles are represented as Significant * 2 ^ Exponent. If the
         // Exponent is not negative, the double value is already an integer.
         if (Double(d).Exponent() >= 0) return H_CONSTANT_DOUBLE(d);
@@ skipping 51 matching lines @@
   return use_double ? Representation::Double() : Representation::Integer32();
 }
 
 
 HInstruction* HPower::New(Isolate* isolate, Zone* zone, HValue* context,
                           HValue* left, HValue* right) {
   if (FLAG_fold_constants && left->IsConstant() && right->IsConstant()) {
     HConstant* c_left = HConstant::cast(left);
     HConstant* c_right = HConstant::cast(right);
     if (c_left->HasNumberValue() && c_right->HasNumberValue()) {
-      double result = power_helper(c_left->DoubleValue(),
-                                   c_right->DoubleValue());
+      double result =
+          power_helper(isolate, c_left->DoubleValue(), c_right->DoubleValue());
       return H_CONSTANT_DOUBLE(std::isnan(result)
                                    ? std::numeric_limits<double>::quiet_NaN()
                                    : result);
     }
   }
   return new(zone) HPower(left, right);
 }
 
 
 HInstruction* HMathMinMax::New(Isolate* isolate, Zone* zone, HValue* context,
@@ skipping 523 matching lines @@
     case HObjectAccess::kExternalMemory:
       os << "[external-memory]";
       break;
   }
 
   return os << "@" << access.offset();
 }
 
 }  // namespace internal
 }  // namespace v8