rjmccall added a comment.
In D147655#4650964 <https://reviews.llvm.org/D147655#4650964>, @probinson wrote:
> Hi @rsmith,
>
>> these two different templates would have the same mangling:
>
> template <typename T, T I> T returnit() {return I;};
> template <typename T, int I> T returnit() { return I; }
>
> I tried compiling `long foo() { return returnit<long, 4>(); }` with these two
> templates, and got different manglings.
> `_Z8returnitIlLl4EET_v` and
> `_Z8returnitIlLi4EET_v`
>
> Am I misunderstanding something about the problem with the old mangling rules?
You need to do `returnit<int, 4>`.
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