Revert "[llvm][NFC] Use c++17 style variable type traits"

This reverts commit 1834a310d060d55748ca38d4ae0482864c2047d8.

1 files changed, 8 insertions, 6 deletions

diff --git a/llvm/unittests/CodeGen/MachineInstrBundleIteratorTest.cpp b/llvm/unittests/CodeGen/MachineInstrBundleIteratorTest.cpp
index b583856..5ce0983 100644
--- a/llvm/unittests/CodeGen/MachineInstrBundleIteratorTest.cpp
+++ b/llvm/unittests/CodeGen/MachineInstrBundleIteratorTest.cpp
@@ -181,14 +181,16 @@ TEST(MachineInstrBundleIteratorTest, ReverseConstructor) {
   EXPECT_EQ(crbegin(), const_reverse_iterator(cend()));
 
   // Confirm lack of implicit conversions.
-  static_assert(!std::is_convertible_v<iterator, reverse_iterator>,
+  static_assert(!std::is_convertible<iterator, reverse_iterator>::value,
                 "unexpected implicit conversion");
-  static_assert(!std::is_convertible_v<reverse_iterator, iterator>,
-                "unexpected implicit conversion");
-  static_assert(!std::is_convertible_v<const_iterator, const_reverse_iterator>,
-                "unexpected implicit conversion");
-  static_assert(!std::is_convertible_v<const_reverse_iterator, const_iterator>,
+  static_assert(!std::is_convertible<reverse_iterator, iterator>::value,
                 "unexpected implicit conversion");
+  static_assert(
+      !std::is_convertible<const_iterator, const_reverse_iterator>::value,
+      "unexpected implicit conversion");
+  static_assert(
+      !std::is_convertible<const_reverse_iterator, const_iterator>::value,
+      "unexpected implicit conversion");
 }
 
 } // end namespace