https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116063
--- Comment #4 from Segher Boessenkool ---
The two members have the same in-memory representation, but transparent_union
is explicitly only about function arguments, so Andrew's arguments are very
valid I think.
It would be nice if we could war
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116063
--- Comment #3 from Andrew Pinski ---
(In reply to Hubert Tong from comment #2)
> If it is invalid, a diagnostic like this should appear:
> ```
> warning: union cannot be made transparent
> ```
Not always.
typedef union __attribute__((__transpa
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116063
--- Comment #2 from Hubert Tong ---
If it is invalid, a diagnostic like this should appear:
```
warning: union cannot be made transparent
```
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116063
--- Comment #1 from Andrew Pinski ---
Hmm
(https://gcc.gnu.org/onlinedocs/gcc-14.1.0/gcc/Common-Type-Attributes.html):
Second, the argument is passed to the function using the calling conventions of
the first member of the transparent union, not
