[PATCH] D154364: [LTO] Allow library calls to be internalized in freestanding mode

[Steven Wu via Phabricator via llvm-commits]

steven_wu added a comment.

I think the strategy generally works. Those libcall functions doesn't really matter if you have a linker that can do dead-stripping but can help other linkers.

I wonder if the better strategy for libcall symbol is to patch up during LTO time, rather than encode them as `used` in bitcode symtab, then you can decide based on LTO configuration. Also when there is a version mismatch between compiler and LTO, it is more important to know what LTO is considered a libcall function as it is doing the code generation.


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  https://reviews.llvm.org/D154364/new/

https://reviews.llvm.org/D154364