[CodeGen] Fix build bots which uses old Clang broken in r314046. (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314049 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/InterferenceCache.h b/lib/CodeGen/InterferenceCache.h
index ca51ef24236e41b363bebbb0d6eec81558ea2eae..160e2b16e2943a995a05a2f38c2074eb0cba3539 100644 (file)
--- a/lib/CodeGen/InterferenceCache.h
+++ b/lib/CodeGen/InterferenceCache.h
@@ -38,7 +38,7 @@ class LLVM_LIBRARY_VISIBILITY InterferenceCache {
     SlotIndex First;
     SlotIndex Last;
 
-    BlockInterference() = default;
+    BlockInterference() {}
   };
 
   /// Entry - A cache entry containing interference information for all aliases