Split ConstantInteger into ConstantInteger32 and ConstantInteger64.

src/IceTargetLoweringX8632.h

Index: src/IceTargetLoweringX8632.h
diff --git a/src/IceTargetLoweringX8632.h b/src/IceTargetLoweringX8632.h
index 251baa205cd661b46db01ae802128aa621428939..99235de2e7f0df8f36750581d95cb4ef7df483e4 100644
--- a/src/IceTargetLoweringX8632.h
+++ b/src/IceTargetLoweringX8632.h
@@ -509,7 +509,8 @@ private:
   virtual ~TargetGlobalInitX8632() {}
 };
 
-template <> void ConstantInteger::emit(GlobalContext *Ctx) const;
+template <> void ConstantInteger32::emit(GlobalContext *Ctx) const;
+template <> void ConstantInteger64::emit(GlobalContext *Ctx) const;
 template <> void ConstantFloat::emit(GlobalContext *Ctx) const;
 template <> void ConstantDouble::emit(GlobalContext *Ctx) const;