[LLVMdev] [RFC] Raising minimum required Visual Studio version to 2013 for trunk

[Renato Golin]

I just broke a build by committing initializer list and a few other
C++11 stuff on the LoopVectorizer... :/

cheers,
--renato

PS: The lld Windows bot is 2011, so that surely needs upgrading anyway...

On 19 August 2014 00:48, David Blaikie <dblaikie at gmail.com> wrote:
> For my money: variadic templates and some bug I hit when trying to use
> forward_as_tuple.
>
> On Aug 18, 2014 4:02 PM, "Aaron Ballman" <aaron at aaronballman.com> wrote:
>>
>> On Mon, Aug 18, 2014 at 6:54 PM, Chris Bieneman <beanz at apple.com> wrote:
>> > I’d like to propose raising the minimum required compiler for the LLVM &
>> > Clang trunks for Visual Studio to MSVC 2013.
>> >
>> > Doing this will allow us to take advantage of a bunch of C++11 features
>> > that are not supported by MSVC 2012. According to MSDN
>> > (http://msdn.microsoft.com/en-us/library/hh567368.aspx) the list is:
>> >
>> > * Non-static data member initializers
>> > * Variadic templates
>> > * Initializer lists
>> > * Default template arguments for function templates
>> > * Expression SFINAE
>> > * Alias templates
>> > * Delegating constructors
>> > * Explicit conversion operators
>> > * Raw string literals
>> > * Defaulted and deleted functions
>> >
>> > Questions, comments, concerns, general feedback?
>>
>> We shifted the minimum MSVC version to 2012 in January of this year,
>> and have run into only a few issues where C++11 features exist in MSVC
>> 2013 but not MSVC 2012. So I'm wondering what problem this solves in
>> practice for our code base?
>>
>> Personally, I use MSVC 2013 instead of 2012. But I would hesitate to
>> switch to 2013 as the minimum supported version just yet. It's been
>> out for less than two years and until "14" drops, it is the newest
>> version of the compiler. When we made the switch, the goal was to
>> support only the last two versions of MSVC, and I don't see any strong
>> evidence to support expediting that schedule. I think this is a great
>> plan for when "14" is officially released.
>>
>> ~Aaron
>>
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