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Diffstat (limited to 'test/Sema/varargs_unreachable.c')
| -rw-r--r-- | test/Sema/varargs_unreachable.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/Sema/varargs_unreachable.c b/test/Sema/varargs_unreachable.c new file mode 100644 index 0000000..866bd8f --- /dev/null +++ b/test/Sema/varargs_unreachable.c @@ -0,0 +1,14 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s -triple x86_64-apple-darwin9 +// expected-no-diagnostics + +// From <rdar://problem/12322000>. Do not warn about undefined behavior of parameter +// argument types in unreachable code in a macro. +#define VA_ARG_RDAR12322000(Marker, TYPE) ((sizeof (TYPE) < sizeof (UINTN_RDAR12322000)) ? (TYPE)(__builtin_va_arg (Marker, UINTN_RDAR12322000)) : (TYPE)(__builtin_va_arg (Marker, TYPE))) + +// 64-bit system +typedef unsigned long long UINTN_RDAR12322000; + +int test_VA_ARG_RDAR12322000 (__builtin_va_list Marker) +{ + return VA_ARG_RDAR12322000 (Marker, short); // no-warning +}
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