rustc_target: allow unenumerated architectures

Author: tamird

src/abi/mod.rs

@@ -788,7 +788,7 @@ pub(crate) fn codegen_drop<'tcx>(
 pub(crate) fn lib_call_arg_param(tcx: TyCtxt<'_>, ty: Type, is_signed: bool) -> AbiParam {
     let param = AbiParam::new(ty);
     if ty.is_int() && u64::from(ty.bits()) < tcx.data_layout.pointer_size().bits() {
-        match (tcx.sess.target.arch, tcx.sess.target.vendor.as_ref()) {
+        match (&tcx.sess.target.arch, tcx.sess.target.vendor.as_ref()) {
             (Arch::X86_64, _) | (Arch::AArch64, "apple") => match (ty, is_signed) {
                 (types::I8 | types::I16, true) => param.sext(),
                 (types::I8 | types::I16, false) => param.uext(),