[PATCH] D81905: Enhance Itanium demangler interface.

[Konstantin Bobrovsky via Phabricator via llvm-commits]

kbobrovs added a comment.

> Please upload the patch with full context.

Done. Sorry for missing that procedure detail.

> I'm inclined to say that we should just enhance Clang to support templated builtins, and then in CGBulitin, just generate the correct LLVM intrinsic directly. No IR pre-processing pass required.

I agree that that would be useful feature - C++ templated built-ins. But this seems like pretty big infrastructural effort. I don't feel myself familiar with Clang builtin ifra enough to do that. I'll be happy to re-implement intrinsic lowering once the Clang support is available.
**Until then, does current approach with using IR pass seem reasonable work-around?**

For the record: using existing non-templated built-ins mechanism would require separate built-in per each template parameters combination, which does not seem practical.


Repository:
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https://reviews.llvm.org/D81905