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-rw-r--r--llvm/unittests/ADT/APIntTest.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/unittests/ADT/APIntTest.cpp b/llvm/unittests/ADT/APIntTest.cpp
index 8a731633..95cb213 100644
--- a/llvm/unittests/ADT/APIntTest.cpp
+++ b/llvm/unittests/ADT/APIntTest.cpp
@@ -3054,6 +3054,9 @@ TEST(APIntTest, ZeroWidth) {
EXPECT_EQ(0U, APInt(4, 3).trunc(0).getBitWidth());
EXPECT_TRUE(ZW.isAllOnes());
+ // Zero extension.
+ EXPECT_EQ(0U, ZW.getZExtValue());
+
SmallString<42> STR;
ZW.toStringUnsigned(STR);
EXPECT_EQ("0", STR);