[PATCH] D127461: [SelectionDAG] Use __memcmpeq to replace bcmp and bool usage memcmp

[James Y Knight via Phabricator via llvm-commits]

jyknight added a comment.

In D127461#3586121 <https://reviews.llvm.org/D127461#3586121>, @goldstein.w.n wrote:

> Wouldn't that almost definitionally only work if the file was being compiled statically? Otherwise you would
> run into the issue that compiling on a system with glibc >= 2.35 produce an executable that wouldn't work
> on a system with glibc < 2.35

There is absolutely no expectation of compatibility in that direction. A binary compiled against version X of glibc can run against any glibc version Y, where Y >= X -- but NOT the other way around.


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https://reviews.llvm.org/D127461