Add VCMP{s,sz,d,dz} Instructions to ARM integrated 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 306 matching lines @@
 
   // Implements uxtb/uxth depending on type of OpSrc0.
   void uxt(const Operand *OpRd, const Operand *OpSrc0, CondARM32::Cond Cond);
 
   void vaddd(const Operand *OpDd, const Operand *OpDn, const Operand *OpDm,
              CondARM32::Cond Cond);
 
   void vadds(const Operand *OpSd, const Operand *OpSn, const Operand *OpSm,
              CondARM32::Cond Cond);
 
+  void vcmpd(const Operand *OpDd, const Operand *OpDm, CondARM32::Cond cond);
+
+  void vcmpdz(const Operand *OpDd, CondARM32::Cond cond); // compare with 0.0

[Jim Stichnoth, 2016/01/09 01:34:28]

Can you clarify the comment?  Does it matter whether it's +0.0 or -0.0?

[Karl, 2016/01/11 16:42:19]

Done.

+
+  void vcmps(const Operand *OpSd, const Operand *OpSm, CondARM32::Cond cond);
+
+  void vcmpsz(const Operand *OpSd, CondARM32::Cond cond); // compare with 0.0
+
   void vcvtsd(const Operand *OpSd, const Operand *OpDm, CondARM32::Cond Cond);
 
   void vcvtds(const Operand *OpDd, const Operand *OpSm, CondARM32::Cond Cond);
 
   void vdivd(const Operand *OpDd, const Operand *OpDn, const Operand *OpDm,
              CondARM32::Cond Cond);
 
   void vdivs(const Operand *OpSd, const Operand *OpSn, const Operand *OpSm,
              CondARM32::Cond Cond);
 
@@ skipping 173 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