Subzero: Emit functions and global initializers in a separate thread.

src/IceTranslator.h

 //===- subzero/src/IceTranslator.h - ICE to machine code --------*- 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 general driver class for translating ICE to
@@ skipping 16 matching lines @@
 class GlobalContext;
 
 // Base class for translating ICE to machine code.  Derived classes convert
 // other intermediate representations down to ICE, and then call the appropriate
 // (inherited) methods to convert ICE into machine instructions.
 class Translator {
   Translator(const Translator &) = delete;
   Translator &operator=(const Translator &) = delete;
 
 public:
-  Translator(GlobalContext *Ctx, const ClFlags &Flags);
+  Translator(GlobalContext *Ctx);
 
   ~Translator();
   const ErrorCode &getErrorStatus() const { return ErrorStatus; }
 
   GlobalContext *getContext() const { return Ctx; }
 
-  const ClFlags &getFlags() const { return Flags; }
+  const ClFlags &getFlags() const { return Ctx->getFlags(); }
 
   /// Translates the constructed ICE function Fcn to machine code.
   /// Takes ownership of Func.
   void translateFcn(std::unique_ptr<Cfg> Func);
 
   /// Emits the constant pool.
   void emitConstants();
 
   /// If there was an error during bitcode reading/parsing, copy the
   /// error code into the GlobalContext.
   void transferErrorCode() const;
 
   /// Lowers the given list of global addresses to target. Generates
   /// list of corresponding variable declarations.
-  void lowerGlobals(const VariableDeclarationList &VariableDeclarations);
+  void
+  lowerGlobals(std::unique_ptr<VariableDeclarationList> VariableDeclarations);
 
   /// Creates a name using the given prefix and corresponding index.
   std::string createUnnamedName(const IceString &Prefix, SizeT Index);
 
   /// Reports if there is a (potential) conflict between Name, and using
   /// Prefix to name unnamed names. Errors are put on Ostream.
   /// Returns true if there isn't a potential conflict.
   bool checkIfUnnamedNameSafe(const IceString &Name, const char *Kind,
                               const IceString &Prefix);
 
+  uint32_t getNextSequenceNumber() { return NextSequenceNumber++; }
+
 protected:
   GlobalContext *Ctx;
-  const ClFlags &Flags;
-  std::unique_ptr<TargetDataLowering> DataLowering;
+  uint32_t NextSequenceNumber;
   // Exit status of the translation. False is successful. True otherwise.
   ErrorCode ErrorStatus;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETRANSLATOR_H