[libcxx] r215740 - Revert "Turn off extern templates for most uses."

Justin Bogner mail at justinbogner.com
Sun Aug 17 18:26:36 PDT 2014

Howard Hinnant <howard.hinnant at gmail.com> writes:
> On Aug 17, 2014, at 9:06 PM, Justin Bogner <mail at justinbogner.com> wrote:
>> I really don't think it's worth the cost of insantiating these very
>> fundamental templates in *every single user* to work around a limitation
>> in the memory sanitizer. This is an unreasonable amount of overhead for
>> standard library types.
> Always measure.  I’m not saying you’re wrong.  I’m saying you’re
> stating a performance conclusion without measurements (which should
> never be acceptable).

I did measure :) Though, I sent it to llvm-dev and it probably should've
been cfe-dev. Sorry about that.


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