Add VSQRT instruction 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 1039 matching lines @@
 
 void Assembler::vnegs(SRegister sd, SRegister sm, Condition cond) {
   EmitVFPsss(cond, B23 | B21 | B20 | B16 | B6, sd, S0, sm);
 }
 
 
 void Assembler::vnegd(DRegister dd, DRegister dm, Condition cond) {
   EmitVFPddd(cond, B23 | B21 | B20 | B16 | B6, dd, D0, dm);
 }
 
-
+#if 0
+// Moved to ARM32::AssemblerARM32::vsqrts().
 void Assembler::vsqrts(SRegister sd, SRegister sm, Condition cond) {
   EmitVFPsss(cond, B23 | B21 | B20 | B16 | B7 | B6, sd, S0, sm);
 }
 
+// Moved to ARM32::AssemblerARM32::vsqrtd().
 void Assembler::vsqrtd(DRegister dd, DRegister dm, Condition cond) {
   EmitVFPddd(cond, B23 | B21 | B20 | B16 | B7 | B6, dd, D0, dm);
 }
 
-#if 0
 // Moved to ARM32::AssemblerARM32::emitVFPsd
 void Assembler::EmitVFPsd(Condition cond, int32_t opcode,
                           SRegister sd, DRegister dm) {
   ASSERT(TargetCPUFeatures::vfp_supported());
   ASSERT(sd != kNoSRegister);
   ASSERT(dm != kNoDRegister);
   ASSERT(cond != kNoCondition);
   int32_t encoding = (static_cast<int32_t>(cond) << kConditionShift) |
                      B27 | B26 | B25 | B11 | B9 | opcode |
                      ((static_cast<int32_t>(sd) & 1)*B22) |
@@ skipping 2606 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