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diff --git a/test/Driver/thread-model.c b/test/Driver/thread-model.c
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+// RUN: %clang -### -target arm-unknown-linux-gnu -c %s -mthread-model posix -v 2>&1 | FileCheck -check-prefix=CHECK-POSIX %s
+// RUN: %clang -### -target arm-unknown-linux-gnu -c %s -mthread-model single -v 2>&1 | FileCheck -check-prefix=CHECK-SINGLE %s
+// RUN: not %clang -target arm-unknown-linux-gnu -c %s -mthread-model silly -v 2>&1 | FileCheck -check-prefix=CHECK-INVALID %s
+// CHECK-POSIX: "-mthread-model" "posix"
+// CHECK-SINGLE: "-mthread-model" "single"
+// CHECK-INVALID: error: invalid thread model 'silly' in '-mthread-model silly' for this target
+
+// RUN: %clang -### -target arm-unknown-linux-gnu -c %s -v 2>&1 | FileCheck -check-prefix=CHECK-LINUX-POSIX %s
+// RUN: %clang -### -target arm-unknown-linux-gnu -c %s -v -mthread-model single 2>&1 | FileCheck -check-prefix=CHECK-LINUX-SINGLE %s
+// RUN: %clang -### -target arm-unknown-linux-gnu -c %s -v -mthread-model silly 2>&1 | FileCheck -check-prefix=CHECK-LINUX-INVALID %s
+// CHECK-LINUX-POSIX: Thread model: posix
+// CHECK-LINUX-POSIX: "-mthread-model" "posix"
+// CHECK-LINUX-SINGLE: Thread model: single
+// CHECK-LINUX-SINGLE: "-mthread-model" "single"
+// CHECK-LINUX-INVALID-NOT: Thread model:
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