[PATCH] D88712: [CGBuiltin] Respect asm labels and redefine_extname for builtins with specialized emitting

[Richard Smith - zygoloid via Phabricator via cfe-commits]

rsmith added a comment.

What are the expected semantics in this case? Is this:

- the function is still the builtin, but if it ends up being a libcall, call a function with a different asm name, or
- the function is not considered to be the builtin any more, or
- something else?

I think this patch is approximately the first thing, but it's also cutting off emission for cases where we wouldn't emit a libcall. Should we make that distinction?


Repository:
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  https://reviews.llvm.org/D88712/new/

https://reviews.llvm.org/D88712