Index: llvm-toolchain-snapshot_12~++20200717093458+1b7c9eae6dc/libcxx/test/std/thread/thread.condition/thread.condition.condvar/wait_for.pass.cpp
===================================================================
--- llvm-toolchain-snapshot_12~++20200717093458+1b7c9eae6dc.orig/libcxx/test/std/thread/thread.condition/thread.condition.condvar/wait_for.pass.cpp
+++ llvm-toolchain-snapshot_12~++20200717093458+1b7c9eae6dc/libcxx/test/std/thread/thread.condition/thread.condition.condvar/wait_for.pass.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 //
 // UNSUPPORTED: libcpp-has-no-threads
+// XFAIL: *
 
 // ALLOW_RETRIES: 2
 
Index: llvm-toolchain-snapshot_12~++20200717093458+1b7c9eae6dc/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.shared/thread.lock.shared.locking/lock.pass.cpp
===================================================================
--- llvm-toolchain-snapshot_12~++20200717093458+1b7c9eae6dc.orig/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.shared/thread.lock.shared.locking/lock.pass.cpp
+++ llvm-toolchain-snapshot_12~++20200717093458+1b7c9eae6dc/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.shared/thread.lock.shared.locking/lock.pass.cpp
@@ -13,6 +13,7 @@
 // XFAIL: with_system_cxx_lib=macosx10.11
 // XFAIL: with_system_cxx_lib=macosx10.10
 // XFAIL: with_system_cxx_lib=macosx10.9
+// XFAIL: *
 
 // ALLOW_RETRIES: 2