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

src/runtime/runtime-maths.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/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/assembler.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/bootstrapper.h"
@@ skipping 132 matching lines @@
   CONVERT_DOUBLE_ARG_CHECKED(x, 0);
 
   // If the second argument is a smi, it is much faster to call the
   // custom powi() function than the generic pow().
   if (args[1]->IsSmi()) {
     int y = args.smi_at(1);
     return *isolate->factory()->NewNumber(power_double_int(x, y));
   }
 
   CONVERT_DOUBLE_ARG_CHECKED(y, 1);
-  double result = power_helper(x, y);
+  double result = power_helper(isolate, x, y);
   if (std::isnan(result)) return isolate->heap()->nan_value();
   return *isolate->factory()->NewNumber(result);
 }
 
 
 // Fast version of Math.pow if we know that y is not an integer and y is not
 // -0.5 or 0.5.  Used as slow case from full codegen.
 RUNTIME_FUNCTION(Runtime_MathPowRT) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 2);
@@ skipping 53 matching lines @@
   return *isolate->factory()->NewNumber(Floor(value + 0.5));
 }
 
 
 RUNTIME_FUNCTION(Runtime_MathSqrt) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
   isolate->counters()->math_sqrt()->Increment();
 
   CONVERT_DOUBLE_ARG_CHECKED(x, 0);
-  return *isolate->factory()->NewNumber(fast_sqrt(x));
+  lazily_initialize_fast_sqrt(isolate);
+  return *isolate->factory()->NewNumber(fast_sqrt(x, isolate));
 }
 
 
 RUNTIME_FUNCTION(Runtime_MathFround) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);
 
   CONVERT_DOUBLE_ARG_CHECKED(x, 0);
   float xf = DoubleToFloat32(x);
   return *isolate->factory()->NewNumber(xf);
@@ skipping 50 matching lines @@
     base::RandomNumberGenerator::XorShift128(&state0, &state1);
     array[i] = base::RandomNumberGenerator::ToDouble(state0, state1);
   }
   // Persist current state.
   array[kState0Offset] = uint64_to_double(state0);
   array[kState1Offset] = uint64_to_double(state1);
   return *typed_array;
 }
 }  // namespace internal
 }  // namespace v8