Subzero. X86. Refactors Address Mode formation.

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.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 437 matching lines @@
   void sortVarsByAlignment(VarList &Dest, const VarList &Source) const;
 
   /// Make a call to an external helper function.
   InstCall *makeHelperCall(const IceString &Name, Variable *Dest,
                            SizeT MaxSrcs);
 
   void _set_dest_redefined() { Context.getLastInserted()->setDestRedefined(); }
 
   bool shouldOptimizeMemIntrins();
 
+  /// SandboxType enumerates all possible sandboxing strategies that
+  enum SandboxType {
+    ST_None,
+    ST_NaCl,
+    ST_Nonsfi,
+  };
+
+  static SandboxType determineSandboxTypeFromFlags(const ClFlags &Flags);
+
   Cfg *Func;
   GlobalContext *Ctx;
   bool HasComputedFrame = false;
   bool CallsReturnsTwice = false;
   SizeT NextLabelNumber = 0;
   SizeT NextJumpTableNumber = 0;
   LoweringContext Context;
+  const SandboxType SandboxingType = ST_None;
 
   // Runtime helper function names
   const static constexpr char *H_bitcast_16xi1_i16 = "__Sz_bitcast_16xi1_i16";
   const static constexpr char *H_bitcast_8xi1_i8 = "__Sz_bitcast_8xi1_i8";
   const static constexpr char *H_bitcast_i16_16xi1 = "__Sz_bitcast_i16_16xi1";
   const static constexpr char *H_bitcast_i8_8xi1 = "__Sz_bitcast_i8_8xi1";
   const static constexpr char *H_call_ctpop_i32 = "__popcountsi2";
   const static constexpr char *H_call_ctpop_i64 = "__popcountdi2";
   const static constexpr char *H_call_longjmp = "longjmp";
   const static constexpr char *H_call_memcpy = "memcpy";
@@ skipping 74 matching lines @@
   virtual void lower() {}
 
 protected:
   explicit TargetHeaderLowering(GlobalContext *Ctx) : Ctx(Ctx) {}
   GlobalContext *Ctx;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERING_H