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

src/DartARM32/assembler_arm.cc

 // 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.
 //
 // This is forked from Dart revision df52deea9f25690eb8b66c5995da92b70f7ac1fe
 // Please update the (git) revision if we merge changes from Dart.
 // https://code.google.com/p/dart/wiki/GettingTheSource
 
 #include "vm/globals.h"  // NOLINT
 #if defined(TARGET_ARCH_ARM)
@@ skipping 959 matching lines @@
 void Assembler::vadds(SRegister sd, SRegister sn, SRegister sm,
                       Condition cond) {
   EmitVFPsss(cond, B21 | B20, sd, sn, sm);
 }
 
 // Moved to Arm32::AssemblerARM32::vaddd()
 void Assembler::vaddd(DRegister dd, DRegister dn, DRegister dm,
                       Condition cond) {
   EmitVFPddd(cond, B21 | B20, dd, dn, dm);
 }
-#endif
 
+// Moved to Arm32::AssemblerARM32::vmuls()
 void Assembler::vsubs(SRegister sd, SRegister sn, SRegister sm,
                       Condition cond) {
   EmitVFPsss(cond, B21 | B20 | B6, sd, sn, sm);
 }
 
-
+// Moved to Arm32::AssemblerARM32::vmuld()
 void Assembler::vsubd(DRegister dd, DRegister dn, DRegister dm,
                       Condition cond) {
   EmitVFPddd(cond, B21 | B20 | B6, dd, dn, dm);
 }
-
+#endif
 
 void Assembler::vmuls(SRegister sd, SRegister sn, SRegister sm,
                       Condition cond) {
   EmitVFPsss(cond, B21, sd, sn, sm);
 }
 
 
 void Assembler::vmuld(DRegister dd, DRegister dn, DRegister dm,
                       Condition cond) {
   EmitVFPddd(cond, B21, dd, dn, dm);
@@ skipping 2682 matching lines @@
 
 
 const char* Assembler::FpuRegisterName(FpuRegister reg) {
   ASSERT((0 <= reg) && (reg < kNumberOfFpuRegisters));
   return fpu_reg_names[reg];
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM