[libc++] Add back-deployment testing on arm64 macs

Differential Revision: https://reviews.llvm.org/D123081

GitOrigin-RevId: b7042b73a3999d5ca3ff1fee2dd4abc1061f800d
diff --git a/test/forced_unwind1.pass.cpp b/test/forced_unwind1.pass.cpp
index de376a8..9083a1d 100644
--- a/test/forced_unwind1.pass.cpp
+++ b/test/forced_unwind1.pass.cpp
@@ -13,6 +13,7 @@
 
 // These tests fail on previously released dylibs, investigation needed.
 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}
+// XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx{{11.0|12.0}}
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/test/forced_unwind2.pass.cpp b/test/forced_unwind2.pass.cpp
index a221dfc..a61d397 100644
--- a/test/forced_unwind2.pass.cpp
+++ b/test/forced_unwind2.pass.cpp
@@ -12,6 +12,7 @@
 
 // These tests fail on previously released dylibs, investigation needed.
 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}
+// XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx{{11.0|12.0}}
 
 #include <exception>
 #include <stdlib.h>