Inline Doubles truncate and round.

runtime/vm/assembler_x64_test.cc

Index: runtime/vm/assembler_x64_test.cc
===================================================================
--- runtime/vm/assembler_x64_test.cc	(revision 16607)
+++ runtime/vm/assembler_x64_test.cc	(working copy)
@@ -1696,6 +1696,19 @@
 }
 
 
+ASSEMBLER_TEST_GENERATE(Pxor, assembler) {
+  __ pxor(XMM0, XMM0);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(Pxor, entry) {
+  typedef double (*PxorCode)(double d);
+  double res = reinterpret_cast<PxorCode>(entry)(12.3456e3);
+  EXPECT_FLOAT_EQ(0.0, res, 0.0);
+}
+
+
 ASSEMBLER_TEST_GENERATE(SquareRootDouble, assembler) {
   __ sqrtsd(XMM0, XMM0);
   __ ret();
@@ -1811,7 +1824,65 @@
   EXPECT_FLOAT_EQ(3.0, res, 0.001);
 }
 
+ASSEMBLER_TEST_GENERATE(DoubleToDoubleTrunc, assembler) {
+  __ roundsd(XMM0, XMM0, Assembler::kRoundToZero);
+  __ ret();
+}
 
+
+ASSEMBLER_TEST_RUN(DoubleToDoubleTrunc, entry) {
+  typedef double (*DoubleToDoubleTruncCode)(double d);
+  double res = reinterpret_cast<DoubleToDoubleTruncCode>(entry)(12.3);
+  EXPECT_EQ(12.0, res);
+  res = reinterpret_cast<DoubleToDoubleTruncCode>(entry)(12.8);
+  EXPECT_EQ(12.0, res);
+  res = reinterpret_cast<DoubleToDoubleTruncCode>(entry)(-12.3);
+  EXPECT_EQ(-12.0, res);
+  res = reinterpret_cast<DoubleToDoubleTruncCode>(entry)(-12.8);
+  EXPECT_EQ(-12.0, res);
+}
+
+
+ASSEMBLER_TEST_GENERATE(DoubleAbs, assembler) {
+  __ DoubleAbs(XMM0);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(DoubleAbs, entry) {
+  typedef double (*DoubleAbsCode)(double d);
+  double val = -12.45;
+  double res =  reinterpret_cast<DoubleAbsCode>(entry)(val);
+  EXPECT_FLOAT_EQ(-val, res, 0.001);
+  val = 12.45;
+  res =  reinterpret_cast<DoubleAbsCode>(entry)(val);
+  EXPECT_FLOAT_EQ(val, res, 0.001);
+}
+
+
+ASSEMBLER_TEST_GENERATE(DoubleToDoubleRound, assembler) {
+  __ DoubleRound(XMM0, XMM0, XMM1);
+  __ ret();
+}
+
+
+ASSEMBLER_TEST_RUN(DoubleToDoubleRound, entry) {
+  typedef double (*DoubleToDoubleRoundCode)(double d);
+  double res = reinterpret_cast<DoubleToDoubleRoundCode>(entry)(12.3);
+  EXPECT_EQ(12.0, res);
+  res = reinterpret_cast<DoubleToDoubleRoundCode>(entry)(12.8);
+  EXPECT_EQ(13.0, res);
+  res = reinterpret_cast<DoubleToDoubleRoundCode>(entry)(0.5);
+  EXPECT_EQ(1.0, res);
+  res = reinterpret_cast<DoubleToDoubleRoundCode>(entry)(-12.3);
+  EXPECT_EQ(-12.0, res);
+  res = reinterpret_cast<DoubleToDoubleRoundCode>(entry)(-12.8);
+  EXPECT_EQ(-13.0, res);
+  res = reinterpret_cast<DoubleToDoubleRoundCode>(entry)(-0.5);
+  EXPECT_EQ(-1.0, res);
+}
+
+
 ASSEMBLER_TEST_GENERATE(ExtractSignBits, assembler) {
   __ movmskpd(RAX, XMM0);
   __ andq(RAX, Immediate(0x1));