diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
@@ -870,9 +870,11 @@
     append("-fsanitize=fuzzer-no-link" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
   endif()
   if (LLVM_USE_SANITIZER MATCHES ".*Undefined.*")
-    set(BLACKLIST_FILE "${CMAKE_SOURCE_DIR}/utils/sanitizers/ubsan_blacklist.txt")
-    if (EXISTS "${BLACKLIST_FILE}")
-      append("-fsanitize-blacklist=${BLACKLIST_FILE}"
+    set(IGNORELIST_FILE "${CMAKE_SOURCE_DIR}/utils/sanitizers/ubsan_ignorelist.txt")
+    if (EXISTS "${IGNORELIST_FILE}")
+      # Use this option name version since -fsanitize-ignorelist is only
+      # accepted with clang 13.0 or newer.
+      append("-fsanitize-blacklist=${IGNORELIST_FILE}"
              CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
     endif()
   endif()
diff --git a/llvm/utils/sanitizers/ubsan_blacklist.txt b/llvm/utils/sanitizers/ubsan_ignorelist.txt
rename from llvm/utils/sanitizers/ubsan_blacklist.txt
rename to llvm/utils/sanitizers/ubsan_ignorelist.txt