Implement inlined version of binary arithmetic operations for doubles.

runtime/vm/assembler_x64.cc

 // Copyright (c) 2011, 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 531 matching lines @@
   ASSERT(dst <= XMM7);
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0x66);
   EmitOperandREX(0, src, REX_NONE);
   EmitUint8(0x0F);
   EmitUint8(0x57);
   EmitOperand(dst & 7, src);
 }
 
 
+void Assembler::cvtsi2sd(XmmRegister dst, Register src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  ASSERT(dst <= XMM7);
+  Operand operand(src);
+  EmitUint8(0xF2);
+  EmitOperandREX(0, operand, REX_NONE);
+  EmitUint8(0x0F);
+  EmitUint8(0x2A);
+  EmitOperand(dst, operand);

[srdjan, 2012/06/08 05:18:22]

Please add a test in assembler_x64_test (see test for cvtsi2sd in
assembler_ia32_test.cc)

[Vyacheslav Egorov (Google), 2012/06/08 11:11:13]

done

+}
+
+
 void Assembler::xchgl(Register dst, Register src) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   Operand operand(src);
   EmitOperandREX(dst, operand, REX_NONE);
   EmitUint8(0x87);
   EmitOperand(dst & 7, operand);
 }
 
 
 void Assembler::xchgq(Register dst, Register src) {
@@ skipping 1079 matching lines @@
     comments.SetCommentAt(i, comments_[i]->comment());
   }
 
   return comments;
 }
 
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64