Implements ARM SIMD multiplication and subtraction instructions.

runtime/vm/constants_arm.h

 // 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.
 
 #ifndef VM_CONSTANTS_ARM_H_
 #define VM_CONSTANTS_ARM_H_
 
 #include "platform/assert.h"
 
 namespace dart {
@@ skipping 146 matching lines @@
 
 static inline DRegister EvenDRegisterOf(QRegister q) {
   return static_cast<DRegister>(q * 2);
 }
 
 static inline DRegister OddDRegisterOf(QRegister q) {
   return static_cast<DRegister>((q * 2) + 1);
 }
 
 
+static inline SRegister EvenSRegisterOf(DRegister d) {
+  return static_cast<SRegister>(d * 2);
+}
+
+static inline SRegister OddSRegisterOf(DRegister d) {
+  return static_cast<SRegister>((d * 2) + 1);
+}
+
+
 // Register aliases for floating point scratch registers.
 const QRegister QTMP = Q7;  // Overlaps with DTMP, STMP.
 const DRegister DTMP = D14;  // Overlaps with STMP.

[regis, 2013/07/16 00:23:30]

... = EvenDRegisterOf(QTMP);

[zra, 2013/07/16 16:11:01]

Done.

 const SRegister STMP = S28;

[regis, 2013/07/16 00:23:30]

... = EvenSRegisterOf(DTMP);

[zra, 2013/07/16 16:11:01]

Done.

 
 // Architecture independent aliases.
 typedef QRegister FpuRegister;
 const FpuRegister FpuTMP = QTMP;
 const int kNumberOfFpuRegisters = kNumberOfQRegisters;
 const FpuRegister kNoFpuRegister = kNoQRegister;
 
 // Register aliases.
 const Register TMP = IP;  // Used as scratch register by assembler.
 const Register CTX = R9;  // Caches current context in generated code.
@@ skipping 458 matching lines @@
   static Instr* At(uword pc) { return reinterpret_cast<Instr*>(pc); }
 
  private:
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(Instr);
 };
 
 }  // namespace dart
 
 #endif  // VM_CONSTANTS_ARM_H_