Small changes in preparation for Hydrogen-generated KeyedLoadGeneric

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 2f8c2da59238934136d4b82c689580b5e3998447..e4ad0cde4dff944a192a7943cdf785add212b5f2 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -2904,6 +2904,7 @@ bool HConstant::EmitAtUses() {
   if (UseCount() == 0) return true;
   if (IsCell()) return false;
   if (representation().IsDouble()) return false;
+  if (representation().IsExternal()) return false;

[mvstanton, 2014/05/27 14:49:25]

What is the reason for this change out of curiousity?

[danno, 2014/05/27 14:58:25]

This allows us to emit external pointers that are constants, e.g. for the
external buffer that points to the KeyedLoad name cache used be the generic
keyed load stub.   

   return true;
 }