Imported Upstream version 5.18.0.225

Former-commit-id: 10196d987d5fc5564b9d3b33b1fdf13190f4d0b5

external/llvm/unittests/Support/xxhashTest.cpp

@@ -0,0 +1,20 @@
+//===- llvm/unittest/Support/xxhashTest.cpp -------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/xxhash.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+
+TEST(xxhashTest, Basic) {
+  EXPECT_EQ(0x33bf00a859c4ba3fU, xxHash64("foo"));
+  EXPECT_EQ(0x48a37c90ad27a659U, xxHash64("bar"));
+  EXPECT_EQ(0x69196c1b3af0bff9U,
+            xxHash64("0123456789abcdefghijklmnopqrstuvwxyz"));
+}