Explicitly change a floating point division with a constant into a...

src/runtime.cc

Index: src/runtime.cc
===================================================================
--- src/runtime.cc	(revision 784)
+++ src/runtime.cc	(working copy)
@@ -3163,9 +3163,9 @@
   // double in the range [0, RAND_MAX + 1) obtained by adding the
   // high-order bits in the range [0, RAND_MAX] with the low-order
   // bits in the range [0, 1).
-  double lo = static_cast<double>(random()) / (RAND_MAX + 1.0);
+  double lo = static_cast<double>(random()) * (1.0 / (RAND_MAX + 1.0));
   double hi = static_cast<double>(random());
-  double result = (hi + lo) / (RAND_MAX + 1.0);
+  double result = (hi + lo) * (1.0 / (RAND_MAX + 1.0));
   ASSERT(result >= 0 && result < 1);
   return Heap::AllocateHeapNumber(result);
 }