On Feb 12, 2010, at 8:25 AM, David Greene wrote:
> On Thursday 11 February 2010 18:17:33 Tanya Lattner wrote:
>> Just a reminder that the 2.7 code freeze is on Feb 21st.
>>
>> All major changes should be committed approximately 1 week before the
code
>> freeze to ensure adequate testing. Please do your part to keep the tree
>> stable in the days leading up to the code freeze.
>
> Since the metadata stuff just settled recently, I like to ask for some time
to
> get the non-temporal stuff in. This is really critical for our work here
and
> it would be nice to get this into 2.7.
Generally, I favor timed releases over feature releases, but... the Clang team
would also like a little more time to prepare for the 2.7 release. Specifically,
we propose to push back by 2 weeks, with the revised schedule being:
3/7 - Code Freeze (9PM PST)
3/13 - Pre-release1 released & community testing begins
3/20 - Pre-release1 testing ends
3/27 - Pre-release2 released & community testing begins
4/3 - Pre-release2 testing ends
4/5 - Release
Why now?
Clang's C++ support is at an important transitional point: we can self-host
a Debug build, and are starting to build significant C++ open source projects
such as CMake, Firefox, Qt, and even parts of Boost. LLVM 2.7 is the perfect
opportunity to enable Clang C++ support by default and announce to the
open-source community that we now have something worth looking at. However, we
have several known semantic analysis bugs and miscompiles that prevent
self-hosting with optimization enabled, cause Firefox to crash on startup, etc.
To advertise Clang C++ widely as part of 2.7 while these bugs remain would be
embarrassing, but we feel that we can address the major problems with only a
two-week slip in the schedule.
Clang C++ only gets one big coming-out party (ever); a little more time will
make a big difference.
- Doug
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