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-rw-r--r--test/Sema/incompatible-sign.c5
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diff --git a/test/Sema/incompatible-sign.c b/test/Sema/incompatible-sign.c
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+++ b/test/Sema/incompatible-sign.c
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+// RUN: clang-cc %s -verify -fsyntax-only
+
+int a(int* x);
+int b(unsigned* y) { return a(y); } // expected-warning {{pointer types point to integer types with different sign}}
+
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