Generate block labels in the ARM hybrid assembler.

src/IceInstARM32.h

 //===- subzero/src/IceInstARM32.h - ARM32 machine instructions --*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 774 matching lines @@
   InstARM32Label &operator=(const InstARM32Label &) = delete;
 
 public:
   static InstARM32Label *create(Cfg *Func, TargetARM32 *Target) {
     return new (Func->allocate<InstARM32Label>()) InstARM32Label(Func, Target);
   }
   uint32_t getEmitInstCount() const override { return 0; }
   IceString getName(const Cfg *Func) const;
   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;
 
 private:
   InstARM32Label(Cfg *Func, TargetARM32 *Target);
 
   SizeT Number; // used for unique label generation.
 };
 
 /// Direct branch instruction.
 class InstARM32Br : public InstARM32Pred {
@@ skipping 422 matching lines @@
 // default implementations. Without this, there is the possibility of ODR
 // violations and link errors.
 
 template <> void InstARM32Ldr::emit(const Cfg *Func) const;
 template <> void InstARM32Movw::emit(const Cfg *Func) const;
 template <> void InstARM32Movt::emit(const Cfg *Func) const;
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEINSTARM32_H