================
@@ -16,6 +16,8 @@ void test1(struct fam_struct *ptr, int size, int idx) {
*__builtin_counted_by_ref(ptr->array) = size; // ok
*__builtin_counted_by_ref(&ptr->array[idx]) = size; // ok
+ *__builtin_counted_by_ref(&ptr->array) = size; // ok
----------------
bwendling wrote:
`*__builtin_counted_by_ref(ptr->array[idx]) = size;` doesn't work because the
builtin requires a pointer to the FAM. (If you meant `&ptr->array[idx]`, that
does work.)
I don't have any use case for `&ptr->array` or the like. I just don't want to
be overly restrictive on what's considered a valid argument to the builtin. I
think I'll do a comparison with gcc's version and see what they accept. We can
match them.
https://github.com/llvm/llvm-project/pull/114495
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