1 files changed, 34 insertions, 0 deletions
diff --git a/deps/v8/test/unittests/compiler/x64/instruction-selector-x64-unittest.cc b/deps/v8/test/unittests/compiler/x64/instruction-selector-x64-unittest.cc
index 1f374c0f85..a83deafe7d 100644
--- a/deps/v8/test/unittests/compiler/x64/instruction-selector-x64-unittest.cc
+++ b/deps/v8/test/unittests/compiler/x64/instruction-selector-x64-unittest.cc
@@ -1030,6 +1030,25 @@ TEST_F(InstructionSelectorTest, Float64BinopArithmetic) {
 // Miscellaneous.
 
 
+TEST_F(InstructionSelectorTest, Uint64LessThanWithLoadAndLoadStackPointer) {
+  StreamBuilder m(this, kMachBool);
+  Node* const sl = m.Load(
+      kMachPtr,
+      m.ExternalConstant(ExternalReference::address_of_stack_limit(isolate())));
+  Node* const sp = m.LoadStackPointer();
+  Node* const n = m.Uint64LessThan(sl, sp);
+  m.Return(n);
+  Stream s = m.Build();
+  ASSERT_EQ(1U, s.size());
+  EXPECT_EQ(kX64StackCheck, s[0]->arch_opcode());
+  ASSERT_EQ(0U, s[0]->InputCount());
+  ASSERT_EQ(1U, s[0]->OutputCount());
+  EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
+  EXPECT_EQ(kFlags_set, s[0]->flags_mode());
+  EXPECT_EQ(kUnsignedGreaterThan, s[0]->flags_condition());
+}
+
+
 TEST_F(InstructionSelectorTest, Word64ShlWithChangeInt32ToInt64) {
   TRACED_FORRANGE(int64_t, x, 32, 63) {
     StreamBuilder m(this, kMachInt64, kMachInt32);
@@ -1127,6 +1146,21 @@ TEST_F(InstructionSelectorTest, Word32AndWith0xffff) {
   }
 }
 
+
+TEST_F(InstructionSelectorTest, Word32Clz) {
+  StreamBuilder m(this, kMachUint32, kMachUint32);
+  Node* const p0 = m.Parameter(0);
+  Node* const n = m.Word32Clz(p0);
+  m.Return(n);
+  Stream s = m.Build();
+  ASSERT_EQ(1U, s.size());
+  EXPECT_EQ(kX64Lzcnt32, s[0]->arch_opcode());
+  ASSERT_EQ(1U, s[0]->InputCount());
+  EXPECT_EQ(s.ToVreg(p0), s.ToVreg(s[0]->InputAt(0)));
+  ASSERT_EQ(1U, s[0]->OutputCount());
+  EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
+}
+
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8