Implement kDoubleToDouble and kIntegerToDouble on ia32 and x64.

runtime/vm/assembler_x64_test.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/os.h"
 #include "vm/unit_test.h"
@@ skipping 1089 matching lines @@
 }
 
 
 ASSEMBLER_TEST_RUN(DoubleFPOperations, entry) {
   typedef double (*SingleFPOperationsCode)();
   double res = reinterpret_cast<SingleFPOperationsCode>(entry)();
   EXPECT_FLOAT_EQ(14.7, res, 0.001);
 }
 
 
-ASSEMBLER_TEST_GENERATE(IntToDoubleConversion, assembler) {
+ASSEMBLER_TEST_GENERATE(Int32ToDoubleConversion, assembler) {
   __ movl(RDX, Immediate(6));
   __ cvtsi2sd(XMM0, RDX);
   __ ret();
 }
 
 
-ASSEMBLER_TEST_RUN(IntToDoubleConversion, entry) {
+ASSEMBLER_TEST_RUN(Int32ToDoubleConversion, entry) {
   typedef double (*IntToDoubleConversionCode)();
   double res = reinterpret_cast<IntToDoubleConversionCode>(entry)();
   EXPECT_FLOAT_EQ(6.0, res, 0.001);
 }
 
 
+ASSEMBLER_TEST_GENERATE(Int64ToDoubleConversion, assembler) {
+  __ movq(RDX, Immediate(12LL << 32));
+  __ cvtsi2sd(XMM0, RDX);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Int64ToDoubleConversion, entry) {
+  typedef double (*IntToDoubleConversionCode)();
+  double res = reinterpret_cast<IntToDoubleConversionCode>(entry)();
+  EXPECT_FLOAT_EQ(static_cast<double>(12LL << 32), res, 0.001);
+}
+
+
 ASSEMBLER_TEST_GENERATE(TestObjectCompare, assembler) {
   ObjectStore* object_store = Isolate::Current()->object_store();
   const Object& obj = Object::ZoneHandle(object_store->smi_class());
   Label fail;
   __ LoadObject(RAX, obj);
   __ CompareObject(RAX, obj);
   __ j(NOT_EQUAL, &fail);
   __ LoadObject(RCX, obj);
   __ CompareObject(RCX, obj);
   __ j(NOT_EQUAL, &fail);
@@ skipping 138 matching lines @@
 
 ASSEMBLER_TEST_RUN(XorpdZeroing, entry) {
   typedef double (*XorpdZeroingCode)(double d);
   double res = reinterpret_cast<XorpdZeroingCode>(entry)(12.56e3);
   EXPECT_FLOAT_EQ(0.0, res, 0.0001);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64