@dr2chase requested issue #50854 to be considered for backport to the next 1.16 minor release.

@gopherbot, please backport to Go 1.16 and Go 1.17. This is an arm and arm64 compiler bug that generates incorrect code with the usual possibility of data corruption. The "fix" involves disabling an (incorrect) optimization in the "rules" (pattern-transmformations), so it is believed low risk.