1 files changed, 41 insertions, 0 deletions

diff --git a/unittests/VMCore/InstructionsTest.cpp b/unittests/VMCore/InstructionsTest.cpp
new file mode 100644
index 0000000000000..2d98cad27fb8b
--- /dev/null
+++ b/unittests/VMCore/InstructionsTest.cpp
@@ -0,0 +1,41 @@
+//===- llvm/unittest/VMCore/InstructionsTest.cpp - Instructions unit tests ===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Instructions.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/LLVMContext.h"
+#include "gtest/gtest.h"
+
+namespace llvm {
+namespace {
+
+TEST(InstructionsTest, ReturnInst) {
+  LLVMContext &C(getGlobalContext());
+
+  // test for PR6589
+  const ReturnInst* r0 = ReturnInst::Create(C);
+  EXPECT_EQ(r0->op_begin(), r0->op_end());
+
+  const IntegerType* Int1 = IntegerType::get(C, 1);
+  Constant* One = ConstantInt::get(Int1, 1, true);
+  const ReturnInst* r1 = ReturnInst::Create(C, One);
+  User::const_op_iterator b(r1->op_begin());
+  EXPECT_NE(b, r1->op_end());
+  EXPECT_EQ(*b, One);
+  EXPECT_EQ(r1->getOperand(0), One);
+  ++b;
+  EXPECT_EQ(b, r1->op_end());
+
+  // clean up
+  delete r0;
+  delete r1;
+}
+
+}  // end anonymous namespace
+}  // end namespace llvm