Subzero: Remove IceString.

src/IceInstMIPS32.h

 //===- subzero/src/IceInstMIPS32.h - MIPS32 machine instrs --*- C++ -*-===    //
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 290 matching lines @@
   InstMIPS32Label() = delete;
   InstMIPS32Label(const InstMIPS32Label &) = delete;
   InstMIPS32Label &operator=(const InstMIPS32Label &) = delete;
 
 public:
   static InstMIPS32Label *create(Cfg *Func, TargetMIPS32 *Target) {
     return new (Func->allocate<InstMIPS32Label>())
         InstMIPS32Label(Func, Target);
   }
   uint32_t getEmitInstCount() const override { return 0; }
-  IceString getName(const Cfg *Func) const;
+  GlobalString getLabelName() const { return Name; }
   SizeT getNumber() const { return Number; }
   void emit(const Cfg *Func) const override;
   void emitIAS(const Cfg *Func) const override;
   void dump(const Cfg *Func) const override;
 
   static bool classof(const Inst *Instr) { return isClassof(Instr, Label); }
 
 private:
   InstMIPS32Label(Cfg *Func, TargetMIPS32 *Target);
 
   // RelocOffset *OffsetReloc = nullptr;
-
   SizeT Number; // used for unique label generation.
+  GlobalString Name;
 };
 
 /// Direct branch instruction.
 class InstMIPS32Br : public InstMIPS32 {
   InstMIPS32Br() = delete;
   InstMIPS32Br(const InstMIPS32Br &) = delete;
   InstMIPS32Br &operator=(const InstMIPS32Br &) = delete;
 
 public:
   /// Create an unconditional branch to a node.
@@ skipping 187 matching lines @@
 template <> void InstMIPS32Mfhi::emit(const Cfg *Func) const;
 template <> void InstMIPS32Mtlo::emit(const Cfg *Func) const;
 template <> void InstMIPS32Mthi::emit(const Cfg *Func) const;
 template <> void InstMIPS32Mult::emit(const Cfg *Func) const;
 template <> void InstMIPS32Multu::emit(const Cfg *Func) const;
 
 } // end of namespace MIPS32
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEINSTMIPS32_H