[PATCH] D105176: [InstrProfiling] Use external weak reference for bias variable

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

> We also disable the use of runtime counter relocation on Darwin since Mach-O doesn't support weak external references, but Darwin already uses a different continous mode that relies on overmapping so runtime counter relocation isn't needed there.

I think you can restrict undefined weak to ELF now. PE-COFF doesn't have undefined weak, either.


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https://reviews.llvm.org/D105176