Add support for XMM registers in SSA code generation pipeline.

runtime/vm/assembler_x64.cc

 // 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.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/assembler.h"
 #include "vm/heap.h"
 #include "vm/memory_region.h"
@@ skipping 461 matching lines @@
   ASSERT(src <= XMM7);
   ASSERT(dst <= XMM7);
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xF2);
   EmitUint8(0x0F);
   EmitUint8(0x11);
   EmitXmmRegisterOperand(src & 7, dst);
 }
 
 
+void Assembler::movaps(XmmRegister dst, XmmRegister src) {
+  // TODO(vegorov): implement and test XMM8 - XMM15.
+  ASSERT(src <= XMM7);
+  ASSERT(dst <= XMM7);
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0x0F);
+  EmitUint8(0x28);
+  EmitXmmRegisterOperand(dst & 7, src);
+}
+
+
 void Assembler::addsd(XmmRegister dst, XmmRegister src) {
   // TODO(srdjan): implement and test XMM8 - XMM15.
   ASSERT(src <= XMM7);
   ASSERT(dst <= XMM7);
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xF2);
   EmitUint8(0x0F);
   EmitUint8(0x58);
   EmitXmmRegisterOperand(dst, src);
 }
@@ skipping 1422 matching lines @@
   "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
 };
 
 
 const char* Assembler::RegisterName(Register reg) {
   ASSERT((0 <= reg) && (reg < kNumberOfCpuRegisters));
   return cpu_reg_names[reg];
 }
 
 
+static const char* xmm_reg_names[kNumberOfXmmRegisters] = {
+  "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
+};
+
+
+const char* Assembler::XmmRegisterName(XmmRegister reg) {
+  ASSERT((0 <= reg) && (reg < kNumberOfXmmRegisters));
+  return xmm_reg_names[reg];
+}
+
+
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64