Add VSUB{S,D} instructions to the integrated ARM assembler.

src/IceAssemblerARM32.h

 //===- subzero/src/IceAssemblerARM32.h - Assembler for ARM32 ----*- C++ -*-===//
 //
 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 // Modified by the Subzero authors.
 //
 //===----------------------------------------------------------------------===//
 //
@@ skipping 312 matching lines @@
 
   void vadds(const Operand *OpSd, const Operand *OpSn, const Operand *OpSm,
              CondARM32::Cond Cond);
 
   void vpop(const Variable *OpBaseReg, SizeT NumConsecRegs,
             CondARM32::Cond Cond);
 
   void vpush(const Variable *OpBaseReg, SizeT NumConsecRegs,
              CondARM32::Cond Cond);
 
+  void vsubd(const Operand *OpDd, const Operand *OpDn, const Operand *OpDm,
+             CondARM32::Cond Cond);
+
+  void vsubs(const Operand *OpSd, const Operand *OpSn, const Operand *OpSm,
+             CondARM32::Cond Cond);
+
   static bool classof(const Assembler *Asm) {
     return Asm->getKind() == Asm_ARM32;
   }
 
   void emitTextInst(const std::string &Text, SizeT InstSize);
 
 private:
   ENABLE_MAKE_UNIQUE;
 
   // A vector of pool-allocated x86 labels for CFG nodes.
@@ skipping 137 matching lines @@
 
   // Emit VFP instruction with 3 S registers.
   void emitVFPsss(CondARM32::Cond Cond, IValueT Opcode, IValueT Sd, IValueT Sn,
                   IValueT Sm);
 };
 
 } // end of namespace ARM32
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEASSEMBLERARM32_H