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-rw-r--r--clang/test/SemaCXX/shift.cpp14
1 files changed, 14 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/shift.cpp b/clang/test/SemaCXX/shift.cpp
new file mode 100644
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+++ b/clang/test/SemaCXX/shift.cpp
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 -Wall -Wshift-sign-overflow -ffreestanding -fsyntax-only -verify %s
+
+#include <limits.h>
+
+#define WORD_BIT (sizeof(int) * CHAR_BIT)
+
+template <int N> void f() {
+ (void)(N << 30); // expected-warning {{bits to represent, but 'int' only has}}
+ (void)(30 << N); // expected-warning {{bits to represent, but 'int' only has}}
+}
+
+void test() {
+ f<30>(); // expected-note {{instantiation}}
+}