1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/unittests/ADT/APIntTest.cpp b/llvm/unittests/ADT/APIntTest.cpp
index fa499bdf22b..a818d26787e 100644
--- a/llvm/unittests/ADT/APIntTest.cpp
+++ b/llvm/unittests/ADT/APIntTest.cpp
@@ -1531,3 +1531,13 @@ TEST(APIntTest, getLowBitsSet) {
   EXPECT_EQ(64u, i128lo64.countTrailingOnes());
   EXPECT_EQ(64u, i128lo64.countPopulation());
 }
+
+TEST(APIntTest, getHighBitsSet) {
+  APInt i64hi32 = APInt::getHighBitsSet(64, 32);
+  EXPECT_EQ(32u, i64hi32.countLeadingOnes());
+  EXPECT_EQ(0u, i64hi32.countLeadingZeros());
+  EXPECT_EQ(64u, i64hi32.getActiveBits());
+  EXPECT_EQ(32u, i64hi32.countTrailingZeros());
+  EXPECT_EQ(0u, i64hi32.countTrailingOnes());
+  EXPECT_EQ(32u, i64hi32.countPopulation());
+}