Add support for XMM8..XMM15

runtime/vm/assembler_x64.h

 // Copyright (c) 2012, 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_ASSEMBLER_X64_H_
 #define VM_ASSEMBLER_X64_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_x64.h directly; use assembler.h instead.
 #endif
@@ skipping 658 matching lines @@
   GrowableArray<CodeComment*> comments_;
 
   inline void EmitUint8(uint8_t value);
   inline void EmitInt32(int32_t value);
   inline void EmitInt64(int64_t value);
 
   inline void EmitRegisterREX(Register reg, uint8_t rex);
   inline void EmitRegisterOperand(int rm, int reg);
   inline void EmitOperandREX(int rm, const Operand& operand, uint8_t rex);
   inline void EmitXmmRegisterOperand(int rm, XmmRegister reg);
+  inline void EmitXmmRegisterREX(XmmRegister reg, uint8_t rex);
   inline void EmitFixup(AssemblerFixup* fixup);
   inline void EmitOperandSizeOverride();
 
   void EmitOperand(int rm, const Operand& operand);
   void EmitImmediate(const Immediate& imm);
   void EmitComplex(int rm, const Operand& operand, const Immediate& immediate);
   void EmitLabel(Label* label, int instruction_size);
   void EmitLabelLink(Label* label);
   void EmitNearLabelLink(Label* label);
 
@@ skipping 22 matching lines @@
 }
 
 
 inline void Assembler::EmitRegisterREX(Register reg, uint8_t rex) {
   ASSERT(reg != kNoRegister);
   rex |= (reg > 7 ? REX_B : REX_NONE);
   if (rex != REX_NONE) EmitUint8(REX_PREFIX | rex);
 }
 
 
+inline void Assembler::EmitXmmRegisterREX(XmmRegister reg, uint8_t rex) {
+  ASSERT(reg != kNoXmmRegister);
+  rex |= (reg > 7 ? REX_R : REX_NONE);
+  if (rex != REX_NONE) EmitUint8(REX_PREFIX | rex);
+}
+
+
 inline void Assembler::EmitOperandREX(int rm,
                                       const Operand& operand,
                                       uint8_t rex) {
   rex |= (rm > 7 ? REX_R : REX_NONE) | operand.rex();
   if (rex != REX_NONE) EmitUint8(REX_PREFIX | rex);
 }
 
 
 inline void Assembler::EmitFixup(AssemblerFixup* fixup) {
   buffer_.EmitFixup(fixup);
 }
 
 
 inline void Assembler::EmitOperandSizeOverride() {
   EmitUint8(0x66);
 }
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_X64_H_