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-rw-r--r--test/Frontend/warning-mapping-4.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/test/Frontend/warning-mapping-4.c b/test/Frontend/warning-mapping-4.c
index 6644042e24..a98136386e 100644
--- a/test/Frontend/warning-mapping-4.c
+++ b/test/Frontend/warning-mapping-4.c
@@ -1,5 +1,9 @@
+// Verify that various combinations of flags properly keep the sign-compare
+// warning disabled.
+
// RUN: %clang_cc1 -verify -Wno-error=sign-compare %s
// RUN: %clang_cc1 -verify -Wsign-compare -w -Wno-error=sign-compare %s
+// RUN: %clang_cc1 -verify -w -Werror=sign-compare %s
// expected-no-diagnostics
int f0(int x, unsigned y) {