[Bug middle-end/28581] Illegal loading the address of a label with -O2

[sparc64 at rediffmail dot com]

------- Comment #11 from sparc64 at rediffmail dot com  2007-11-18 14:44 -------
> I agree that we should clarify the documentation if we definitely rule the
> code as being invalid.

Since "&&" is a C extension, I believe one can reserve the right to limit how
long it extends. But this limitation, which hits only when "optimization" kicks
in is very very misleading. And, I find such a limitation spoiling the whole
idea of having the extension.

For example, the original post posted by "inaoka" tries to pass a pointer
loaded with "&&" extension. And, he has run into trouble.

The point here is that the "Optimization" rule is very quick to rule out that
the usage of "&&" is only for "goto"s. This precludes a beautiful C extension
from being as beautiful as it ought to be.

It would be really nice on the part of GCC developers to fix this. I am sure
this must be a very small thing to fix (apologies if not).

Thanks


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28581