Subzero. X86. Refactors Address Mode formation.

src/IceTargetLoweringX8632.h

 //===- subzero/src/IceTargetLoweringX8632.h - x86-32 lowering ---*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 33 matching lines @@
     return makeUnique<TargetX8632>(Func);
   }
 
   std::unique_ptr<::Ice::Assembler> createAssembler() const override {
     return makeUnique<X8632::AssemblerX8632>();
   }
 
 protected:
   void _add_sp(Operand *Adjustment);
   void _mov_sp(Operand *NewValue);
-  Traits::X86OperandMem *_sandbox_mem_reference(X86OperandMem *) {
-    llvm::report_fatal_error("sandbox mem reference for x86-32.");
-  }
+  Traits::X86OperandMem *_sandbox_mem_reference(X86OperandMem *Mem);
   void _sub_sp(Operand *Adjustment);
   void _link_bp();
   void _unlink_bp();
   void _push_reg(Variable *Reg);
 
-  void initSandbox() {}
+  void initRebasePtr();
+  void initSandbox();
+  bool legalizeOptAddrForSandbox(OptAddr *Addr);
   void emitSandboxedReturn();
   void lowerIndirectJump(Variable *JumpTarget);
   void emitGetIP(CfgNode *Node);
   Inst *emitCallToTarget(Operand *CallTarget, Variable *ReturnReg) override;
   Variable *moveReturnValueToRegister(Operand *Value, Type ReturnType) override;
 
 private:
   ENABLE_MAKE_UNIQUE;
   friend class X8632::TargetX86Base<X8632::Traits>;
 
@@ skipping 45 matching lines @@
   explicit TargetHeaderX8632(GlobalContext *Ctx);
 
 private:
   ~TargetHeaderX8632() = default;
 };
 
 } // end of namespace X8632
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERINGX8632_H