================ @@ -85,6 +85,10 @@ def SMEUnsupported : AArch64Unsupported { SME2Unsupported.F); } +def MTEUnsupported : AArch64Unsupported { + let F = [HasMTE]; +} + ---------------- jthackray wrote: Oh yes. Thanks. https://github.com/llvm/llvm-project/pull/91022