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

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.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the TargetLoweringX8632 class, which
@@ skipping 481 matching lines @@
   TargetDataX8632(const TargetDataX8632 &) = delete;
   TargetDataX8632 &operator=(const TargetDataX8632 &) = delete;
 
 public:
   static TargetDataLowering *create(GlobalContext *Ctx) {
     return new TargetDataX8632(Ctx);
   }
 
   void lowerGlobal(const VariableDeclaration &Var) const final;
   void lowerGlobalsELF(const VariableDeclarationList &Vars) const final;
-  void lowerConstants(GlobalContext *Ctx) const final;
+  void lowerConstants() const final;
 
 protected:
   TargetDataX8632(GlobalContext *Ctx);
 
 private:
   ~TargetDataX8632() override {}
   template <typename T> static void emitConstantPool(GlobalContext *Ctx);
 };
 
 template <> void ConstantInteger32::emit(GlobalContext *Ctx) const;
 template <> void ConstantInteger64::emit(GlobalContext *Ctx) const;
 template <> void ConstantFloat::emit(GlobalContext *Ctx) const;
 template <> void ConstantDouble::emit(GlobalContext *Ctx) const;
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERINGX8632_H