1 files changed, 22 insertions, 0 deletions
diff --git a/clang/test/Misc/diag-mapping2.c b/clang/test/Misc/diag-mapping2.c
new file mode 100644
index 0000000..bc5a087
--- /dev/null
+++ b/clang/test/Misc/diag-mapping2.c
@@ -0,0 +1,22 @@
+// This should warn by default.
+// RUN: %clang_cc1 %s 2>&1 | grep "warning:"
+
+// This should not emit anything.
+// RUN: %clang_cc1 %s -w 2>&1 | not grep diagnostic
+// RUN: %clang_cc1 %s -Wno-#warnings 2>&1 | not grep diagnostic
+
+// -Werror can map all warnings to error.
+// RUN: %clang_cc1 %s -Werror 2>&1 | grep "error:"
+
+// -Werror can map this one warning to error.
+// RUN: %clang_cc1 %s -Werror=#warnings 2>&1 | grep "error:"
+
+// -Wno-error= overrides -Werror.  rdar://3158301
+// RUN: %clang_cc1 %s -Werror -Wno-error=#warnings 2>&1 | grep "warning:"
+
+// -Wno-error overrides -Werror.  PR4715
+// RUN: %clang_cc1 %s -Werror -Wno-error 2>&1 | grep "warning:"
+
+#warning foo
+
+