Add support for XMM registers in SSA code generation pipeline.

runtime/vm/assembler_ia32_test.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_IA32)
 
 #include "vm/assembler.h"
 #include "vm/os.h"
 #include "vm/unit_test.h"
@@ skipping 827 matching lines @@
   __ movsd(XMM0, Address(ESP, 0));
   __ movsd(XMM1, XMM0);
   __ movsd(XMM2, XMM1);
   __ movsd(XMM3, XMM2);
   __ movsd(XMM4, XMM3);
   __ movsd(XMM5, XMM4);
   __ movsd(XMM6, XMM5);
   __ movsd(XMM7, XMM6);
   __ movl(Address(ESP, 0), Immediate(0));
   __ movl(Address(ESP, kWordSize), Immediate(0));
+  __ movsd(XMM0, Address(ESP, 0));
   __ movsd(Address(ESP, 0), XMM7);
+  __ movsd(XMM7, Address(ESP, 0));
+  __ movaps(XMM6, XMM7);
+  __ movaps(XMM5, XMM6);
+  __ movaps(XMM4, XMM5);
+  __ movaps(XMM3, XMM4);
+  __ movaps(XMM2, XMM3);
+  __ movaps(XMM1, XMM2);
+  __ movaps(XMM0, XMM1);
+  __ movl(Address(ESP, 0), Immediate(0));
+  __ movl(Address(ESP, kWordSize), Immediate(0));
+  __ movsd(Address(ESP, 0), XMM0);
   __ fldl(Address(ESP, 0));
   __ popl(EAX);
   __ popl(EAX);
   __ ret();
 }
 
 
 ASSEMBLER_TEST_RUN(DoubleFPMoves, entry) {
   typedef double (*DoubleFPMovesCode)();
   double res = reinterpret_cast<DoubleFPMovesCode>(entry)();
@@ skipping 988 matching lines @@
                      FieldAddress(ECX, GrowableObjectArray::data_offset()),
                      EAX);
   __ popl(CTX);
   __ ret();
 }
 
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32