[PATCH] D57915: [COFF, ARM64] Remove definitions for _byteswap library functions

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

Should clang IR generation be lowering these to bswap calls anyway?  Even if the function technically exists in the ucrt, it's going to be pretty slow to call it.

Please leave the tests; fix the CHECK lines, if necessary, but we should still check it compiles.


Repository:
  rC Clang

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  https://reviews.llvm.org/D57915/new/

https://reviews.llvm.org/D57915