Write out global initializers and data rel directly to ELF file.

src/IceTargetLowering.h

 //===- subzero/src/IceTargetLowering.h - Lowering interface -----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the TargetLowering and LoweringContext
@@ skipping 220 matching lines @@
   GlobalContext *Ctx;
   const bool RandomizeRegisterAllocation;
   bool HasComputedFrame;
   bool CallsReturnsTwice;
   // StackAdjustment keeps track of the current stack offset from its
   // natural location, as arguments are pushed for a function call.
   int32_t StackAdjustment;
   LoweringContext Context;
 };
 
-// TargetGlobalLowering is used for "lowering" global initializers,
-// including the internal constant pool.  It is separated out from
-// TargetLowering because it does not require a Cfg.
-class TargetGlobalLowering {
-  TargetGlobalLowering() = delete;
-  TargetGlobalLowering(const TargetGlobalLowering &) = delete;
-  TargetGlobalLowering &operator=(const TargetGlobalLowering &) = delete;
+// TargetDataLowering is used for "lowering" data including initializers
+// for global variables, and the internal constant pools.  It is separated
+// out from TargetLowering because it does not require a Cfg.
+class TargetDataLowering {
+  TargetDataLowering() = delete;
+  TargetDataLowering(const TargetDataLowering &) = delete;
+  TargetDataLowering &operator=(const TargetDataLowering &) = delete;
 
 public:
-  static TargetGlobalLowering *createLowering(GlobalContext *Ctx);
-  virtual ~TargetGlobalLowering();
+  static TargetDataLowering *createLowering(GlobalContext *Ctx);
+  virtual ~TargetDataLowering();
 
-  virtual void lowerInit(const VariableDeclaration &Var) const = 0;
+  virtual void lowerGlobal(const VariableDeclaration &Var) const = 0;
+  virtual void lowerGlobalsELF(const VariableDeclarationList &Vars) const = 0;
   virtual void lowerConstants(GlobalContext *Ctx) const = 0;
 
 protected:
-  TargetGlobalLowering(GlobalContext *Ctx) : Ctx(Ctx) {}
+  TargetDataLowering(GlobalContext *Ctx) : Ctx(Ctx) {}
   GlobalContext *Ctx;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERING_H