[Bug c/22278] gcc -O2 discards cast to volatile

[falk at debian dot org]

------- Additional Comments From falk at debian dot org  2005-07-02 17:53 -------
(In reply to comment #5)
> Since the orginal pointer is not violatile the cast will not change any thing
since the compiler can  
> deduce it is not violatile.

It could deduce that if it was invalid to form a pointer to non-volatile
that points to a volatile object. However, I can't see any point in the standard
that disallows this. So how can gcc deduce the pointed-to object is not volatile?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22278