[libcxx] r206805 - Use compiler intrinsic __is_constructible if available

[Richard Smith]

Any chance you could produce a reduced testcase and file a bug against
Clang? =)

On Fri Apr 25 2014 at 11:37:56 AM, İsmail Dönmez <ismail at donmez.ws> wrote:

> Hi,
>
>
> On Fri, Apr 25, 2014 at 6:09 PM, Marshall Clow <mclow.lists at gmail.com>wrote:
>
>>
>> On Apr 24, 2014, at 2:44 AM, İsmail Dönmez <ismail at donmez.ws> wrote:
>>
>> Hi,
>>
>>
>> On Tue, Apr 22, 2014 at 1:30 AM, Marshall Clow <mclow.lists at gmail.com>wrote:
>>
>>> Author: marshall
>>> Date: Mon Apr 21 17:30:32 2014
>>> New Revision: 206805
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=206805&view=rev
>>> Log:
>>> Use compiler intrinsic __is_constructible if available
>>>
>>> Modified:
>>>     libcxx/trunk/include/type_traits
>>>
>>
>> This breaks the llvm compilation (in stage2 hence clang is the compiler
>> here) for me on Linux/x86-64:
>>
>>
>> Sorry; was in meetings all day yesterday.
>> Looks like a bug in the __is_constructible code in clang.
>>
>> As a workaround (and a check to make sure that’s what it is), would you
>> please change (in type_traits)
>>
>> #if __has_feature(is_constructible)
>> to
>> #if 0
>>
>> and let me know if that fixes the crash?
>>
>
> This indeed fixes the crash.
>
> Regards.
>
>
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