Implement inlined version of binary arithmetic operations for doubles.

runtime/vm/assembler_x64.cc

Index: runtime/vm/assembler_x64.cc
diff --git a/runtime/vm/assembler_x64.cc b/runtime/vm/assembler_x64.cc
index 9618d57a308b36e448f6302aaa4822949f8224f0..447b0dfb1b5e4f933294a9904961f3cff2e51aa3 100644
--- a/runtime/vm/assembler_x64.cc
+++ b/runtime/vm/assembler_x64.cc
@@ -549,6 +549,18 @@ void Assembler::xorpd(XmmRegister dst, const Address& 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);