diff --git a/compiler-rt/test/ubsan/TestCases/Misc/Linux/diag-stacktrace.cpp b/compiler-rt/test/ubsan/TestCases/Misc/Posix/diag-stacktrace.cpp
similarity index 100%
rename from compiler-rt/test/ubsan/TestCases/Misc/Linux/diag-stacktrace.cpp
rename to compiler-rt/test/ubsan/TestCases/Misc/Posix/diag-stacktrace.cpp
diff --git a/compiler-rt/test/ubsan/TestCases/Misc/Linux/lit.local.cfg.py b/compiler-rt/test/ubsan/TestCases/Misc/Posix/lit.local.cfg.py
similarity index 82%
rename from compiler-rt/test/ubsan/TestCases/Misc/Linux/lit.local.cfg.py
rename to compiler-rt/test/ubsan/TestCases/Misc/Posix/lit.local.cfg.py
index 603ca0365068f5e..63240c396256561 100644
--- a/compiler-rt/test/ubsan/TestCases/Misc/Linux/lit.local.cfg.py
+++ b/compiler-rt/test/ubsan/TestCases/Misc/Posix/lit.local.cfg.py
@@ -6,5 +6,5 @@ def getRoot(config):
 
 root = getRoot(config)
 
-if root.host_os not in ["Linux"]:
+if root.host_os in ["Windows"]:
     config.unsupported = True
diff --git a/compiler-rt/test/ubsan/TestCases/Misc/Linux/print_stack_trace.cpp b/compiler-rt/test/ubsan/TestCases/Misc/Posix/print_stack_trace.cpp
similarity index 100%
rename from compiler-rt/test/ubsan/TestCases/Misc/Linux/print_stack_trace.cpp
rename to compiler-rt/test/ubsan/TestCases/Misc/Posix/print_stack_trace.cpp
diff --git a/compiler-rt/test/ubsan/TestCases/Misc/Linux/sigaction.cpp b/compiler-rt/test/ubsan/TestCases/Misc/Posix/sigaction.cpp
similarity index 100%
rename from compiler-rt/test/ubsan/TestCases/Misc/Linux/sigaction.cpp
rename to compiler-rt/test/ubsan/TestCases/Misc/Posix/sigaction.cpp
diff --git a/compiler-rt/test/ubsan/TestCases/Misc/Linux/static-link.cpp b/compiler-rt/test/ubsan/TestCases/Misc/Posix/static-link.cpp
similarity index 100%
rename from compiler-rt/test/ubsan/TestCases/Misc/Linux/static-link.cpp
rename to compiler-rt/test/ubsan/TestCases/Misc/Posix/static-link.cpp
diff --git a/compiler-rt/test/ubsan/TestCases/Misc/Linux/ubsan_options.cpp b/compiler-rt/test/ubsan/TestCases/Misc/Posix/ubsan_options.cpp
similarity index 100%
rename from compiler-rt/test/ubsan/TestCases/Misc/Linux/ubsan_options.cpp
rename to compiler-rt/test/ubsan/TestCases/Misc/Posix/ubsan_options.cpp