On 07/18/2013 09:36 AM, Peter Maydell wrote:
> On 18 July 2013 17:14, Richard Henderson <r...@twiddle.net> wrote:
>> At -O2, code in the form
>>
>> if (p) A; B; if (p) C;
>>
>> may be rearranged via "jump threading" into
>>
>> if (p) { A; B; C; } else { B; }
>>
>> But at -O1 this doesn't happen and we -Werror out here on
>> the "may be used uninitialized" orig_len. Perform this transform
>> by hand so that -O1 remains a viable debugging alternative.
>>
>> Signed-off-by: Richard Henderson <r...@twiddle.net>
>
> This is the same issue fixed by this (reviewed but
> never applied) patch from June, isn't it?
>
> http://patchwork.ozlabs.org/patch/251410/
Yes, it is.
r~
