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-rw-r--r--test/Sema/mode-attr-test.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/test/Sema/mode-attr-test.c b/test/Sema/mode-attr-test.c
new file mode 100644
index 0000000000..4eb1399071
--- /dev/null
+++ b/test/Sema/mode-attr-test.c
@@ -0,0 +1,15 @@
+// RUN: clang -fsyntax-only -verify %s
+
+typedef int i16_1 __attribute((mode(HI)));
+int i16_1_test[sizeof(i16_1) == 2 ? 1 : -1];
+typedef int i16_2 __attribute((__mode__(__HI__)));
+int i16_2_test[sizeof(i16_1) == 2 ? 1 : -1];
+
+typedef float f64 __attribute((mode(DF)));
+int f64_test[sizeof(f64) == 8 ? 1 : -1];
+
+typedef int invalid_1 __attribute((mode)); // expected-error{{attribute requires unquoted parameter}}
+typedef int invalid_2 __attribute((mode())); // expected-error{{attribute requires unquoted parameter}}
+typedef int invalid_3 __attribute((mode(II))); // expected-error{{unknown machine mode}}
+typedef struct {int i,j,k;} invalid_4 __attribute((mode(SI))); // expected-error{{mode attribute only supported for integer and floating-point types}}
+typedef float invalid_5 __attribute((mode(SI))); // expected-error{{type of machine mode does not match type of base type}}