Handle MOV (immediate) and MOVT to load ARM global addresses.

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 400 matching lines @@
   static InstARM32UnaryopGPR *create(Cfg *Func, Variable *Dest, Operand *Src,
                                      CondARM32::Cond Predicate) {
     return new (Func->allocate<InstARM32UnaryopGPR>())
         InstARM32UnaryopGPR(Func, Dest, Src, Predicate);
   }
   void emit(const Cfg *Func) const override {
     if (!BuildDefs::dump())
       return;
     emitUnaryopGPR(Opcode, this, Func, NeedsWidthSuffix);
   }
+  void emitIAS(const Cfg *Func) const override;
   void dump(const Cfg *Func) const override {
     if (!BuildDefs::dump())
       return;
     Ostream &Str = Func->getContext()->getStrDump();
     dumpDest(Func);
     Str << " = ";
     dumpOpcodePred(Str, Opcode, getDest()->getType());
     Str << " ";
     dumpSources(Func);
   }
@@ skipping 798 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