1 files changed, 57 insertions, 0 deletions
diff --git a/gnu/llvm/unittests/Support/ThreadLocalTest.cpp b/gnu/llvm/unittests/Support/ThreadLocalTest.cpp
new file mode 100644
index 00000000000..e71c7dba22f
--- /dev/null
+++ b/gnu/llvm/unittests/Support/ThreadLocalTest.cpp
@@ -0,0 +1,57 @@
+//===- llvm/unittest/Support/ThreadLocalTest.cpp - ThreadLocal tests ------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/ThreadLocal.h"
+#include "gtest/gtest.h"
+#include <type_traits>
+
+using namespace llvm;
+using namespace sys;
+
+namespace {
+
+class ThreadLocalTest : public ::testing::Test {
+};
+
+struct S {
+  int i;
+};
+
+TEST_F(ThreadLocalTest, Basics) {
+  ThreadLocal<const S> x;
+
+  static_assert(
+      std::is_const<std::remove_pointer<decltype(x.get())>::type>::value,
+      "ThreadLocal::get didn't return a pointer to const object");
+
+  EXPECT_EQ(nullptr, x.get());
+
+  S s;
+  x.set(&s);
+  EXPECT_EQ(&s, x.get());
+
+  x.erase();
+  EXPECT_EQ(nullptr, x.get());
+
+  ThreadLocal<S> y;
+
+  static_assert(
+      !std::is_const<std::remove_pointer<decltype(y.get())>::type>::value,
+      "ThreadLocal::get returned a pointer to const object");
+
+  EXPECT_EQ(nullptr, y.get());
+
+  y.set(&s);
+  EXPECT_EQ(&s, y.get());
+
+  y.erase();
+  EXPECT_EQ(nullptr, y.get());
+}
+
+}