middle-end/9725: Invalid dependency determination

[Richard Earnshaw]

> >>>>> "Jan" == Jan Beulich <JBeulich@novell.com> writes:
> 
>     Jan> I was fearing you would say this. But I can in no way agree - the code
>     Jan> presented is valid C, and hence should work at any optimization level.
> 
> It is not valid C because it violates the following exceprt from the
> ISO/IEC 9899:1999:
> [...]

Probably more importantly, it also violates a similar statement in C89 
[3.3 Line 18]

R.