Status of building problem with GCC 6

[Andrew Haley]

On 02/07/16 16:41, Kim Barrett wrote:
>> On Jul 2, 2016, at 5:18 AM, Andrew Haley <aph at redhat.com> wrote:
>>
>> On 01/07/16 20:13, Kim Barrett wrote:
>>> -fno-lifetime-dse is a relatively recent option, and needs to be
>>> conditionalized.
>>
>> I think that we don't need -fno-lifetime-dse any more because the
>> bug which needed it was fixed by 8034812.
> 
> My understanding was that -fno-lifetime-dse was needed to prevent
> elimination of code like that in the #ifdef ASSERT block in
> Node::operator new, e.g. treating storage as an object before the
> constructor has been called.  There was also some non-ASSERT
> code there that was removed by 8034812.  And as I mentioned in
> 8160742, I’m pretty sure I’ve seen other occurrences of this “pattern”.

I see.  I thought that it was all gone.

Andrew.