Move generated math methods from platform to codegen

src/v8.cc

Index: src/v8.cc
diff --git a/src/v8.cc b/src/v8.cc
index 30f64d6bdf8ea91d72c9adffa46773c158ca0533..f123f3f3566d178f213959d9057e1664dce01fb7 100644
--- a/src/v8.cc
+++ b/src/v8.cc
@@ -110,6 +110,12 @@ void V8::InitializeOncePerProcessImpl() {
   bool serializer_enabled = Serializer::enabled(NULL);
   CpuFeatures::Probe(serializer_enabled);
   OS::PostSetUp();
+  // The custom exp implementation needs 16KB of lookup data; initialize it
+  // on demand.
+  init_fast_sqrt_function();
+#ifdef _WIN64
+  init_modulo_function();
+#endif
   ElementsAccessor::InitializeOncePerProcess();
   LOperand::SetUpCaches();
   SetUpJSCallerSavedCodeData();