[PATCH] D93585: [AArch64] Enable out-of-line atomics by default.

[Pavel Iliin via Phabricator via llvm-commits]

ilinpv added a comment.

> You said Android is planning to adopt this. Do you know how? I thought they had their own libc; does it also implement `getauxval`, or do they have a separate `compiler-rt`, or something entirely different?

Android uses compiler-rt and has getauxval support: https://android.googlesource.com/platform/bionic/+/master/libc/bionic/getauxval.cpp

> There would need to be more checks in the CompilerRT case because most platforms won't benefit. There's already Clang logic to discover GCC installations (search for `GCCInstallationDetector`); I hope you'll be able to use that instead of trying to redo it.

Thanks for the tip, I'll try to utilize it.


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https://reviews.llvm.org/D93585