Subzero. Refactors Switch Lowering.

src/IceGlobalContext.h

 //===- subzero/src/IceGlobalContext.h - Global context defs -----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 251 matching lines @@
   Constant *getRuntimeHelperFunc(RuntimeHelper FuncID) const {
     assert(FuncID < RuntimeHelper::H_Num);
     Constant *Result = RuntimeHelperFunc[static_cast<size_t>(FuncID)];
     assert(Result != nullptr && "No such runtime helper function");
     return Result;
   }
   GlobalString getGlobalString(const std::string &Name);
 
   /// Return a locked pointer to the registered jump tables.
   JumpTableDataList getJumpTables();
-  /// Create a new jump table entry and return a reference to it.
-  JumpTableData &addJumpTable(GlobalString FuncName, SizeT Id,
-                              const JumpTableData::TargetList &TargetList);
+  /// Adds JumpTable to the list of know jump tables, for a posteriori emission.
+  void addJumpTableData(JumpTableData JumpTable);
 
   static const ClFlags &getFlags() { return Flags; }
 
   /// Allocate data of type T using the global allocator. We allow entities
   /// allocated from this global allocator to be either trivially or
   /// non-trivially destructible. We optimize the case when T is trivially
   /// destructible by not registering a destructor. Destructors will be invoked
   /// during GlobalContext destruction in the reverse object creation order.
   template <typename T>
   typename std::enable_if<std::is_trivially_destructible<T>::value, T>::type *
@@ skipping 394 matching lines @@
   explicit OstreamLocker(GlobalContext *Ctx) : Ctx(Ctx) { Ctx->lockStr(); }
   ~OstreamLocker() { Ctx->unlockStr(); }
 
 private:
   GlobalContext *const Ctx;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEGLOBALCONTEXT_H