gcc_qsort as introduced by Alexander Monakov [0] in trunk for 9.x is a great change that defines the order of otherwise-unbalanced internal sorts, some of which would otherwise cause bootstrapping failures.
I would like to request that these it as well as subsequent fixups (all listed specifically below) be backported to the 8.x branch. They apply cleanly to 8.x, and I can confirm that they fix qsort-related bootstrap failures at least in my case of crossing x86_64-gnu to x86_64-musl. Would there be any downside to backporting? The changes that I locally backported and tested successfully were: r260216: Introduce gcc_qsort r260222: gcc_qsort: avoid oversized memcpy temporaries r262092: gcc_qsort: avoid overlapping memcpy (PR 86311) r264065: qsort_chk: call from gcc_qsort instead of wrapping it [0]: https://gcc.gnu.org/ml/gcc-patches/2018-05/msg00479.html Regards, Cory Fields
