https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103830
Bernd Edlinger <bernd.edlinger at hotmail dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|INVALID |FIXED
--- Comment #9 from Bernd Edlinger <bernd.edlinger at hotmail dot de> ---
(In reply to Richard Biener from comment #7)
> A fix in the source would be:
>
> void MyClass::call() {
> volatile char * volatile null = nullptr;
> *null = 1; /* line 26 */
> }
>
> which then compiles to
>
> movq $0, -8(%rsp)
> movq -8(%rsp), %rax
> movb $1, (%rax)
> ret
>
> (some "advanced" means using some asm() to hide the constant from the
> compiler might also work)
Yes, that works, but I would prefer:
*(volatile char*)1 = 2;
