Added fast support for Math.pow. This simply calculates the result using the...

src/x64/codegen-x64.cc

Index: src/x64/codegen-x64.cc
===================================================================
--- src/x64/codegen-x64.cc	(revision 3937)
+++ src/x64/codegen-x64.cc	(working copy)
@@ -3891,6 +3891,16 @@
 }
 
 
+// Generates the Math.pow method - currently just calls runtime.
+void CodeGenerator::GeneratePow(ZoneList<Expression*>* args) {
+  ASSERT(args->length() == 2);
+  Load(args->at(0));
+  Load(args->at(1));
+  Result res = frame_->CallRuntime(Runtime::kMath_pow, 2);
+  frame_->Push(&res);
+}
+
+
 void CodeGenerator::GenerateIsSmi(ZoneList<Expression*>* args) {
   ASSERT(args->length() == 1);
   Load(args->at(0));