Introduce model of global initializers in Subzero.

src/IceTargetLowering.h

Index: src/IceTargetLowering.h
diff --git a/src/IceTargetLowering.h b/src/IceTargetLowering.h
index 82d0f59c30dde923cc12d84105b32218f074c48e..d0c091862066a600c05fa43f3a23fbfca0444966 100644
--- a/src/IceTargetLowering.h
+++ b/src/IceTargetLowering.h
@@ -19,6 +19,7 @@
 #define SUBZERO_SRC_ICETARGETLOWERING_H
 
 #include "IceDefs.h"
+#include "IceGlobalInits.h"

[Jim Stichnoth, 2014/10/06 18:16:38]

I think it's best to try to minimize includes in a .h file (other than including
IceDefs.h and IceTypes.h).  Can you forward-declare class GlobalAddress instead?

[Karl, 2014/10/06 22:44:04]

Done.

 #include "IceInst.h" // for the names of the Inst subtypes
 #include "IceTypes.h"
 
@@ -248,10 +249,7 @@ public:
                                                   GlobalContext *Ctx);
   virtual ~TargetGlobalInitLowering();
 
-  // TODO: Allow relocations to be represented as part of the Data.
-  virtual void lower(const IceString &Name, SizeT Align, bool IsInternal,
-                     bool IsConst, bool IsZeroInitializer, SizeT Size,
-                     const char *Data, bool DisableTranslation) = 0;
+  virtual void lower(const GlobalAddress &Addr, bool DisableTranslation) = 0;
 
 protected:
   TargetGlobalInitLowering(GlobalContext *Ctx) : Ctx(Ctx) {}