https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61308
--- Comment #2 from Dmitry Vyukov <dvyukov at google dot com> --- It would be great to accompany these fixes with regression tests. We have significant amount of Go code in std lib and tests, but still we discover new code patterns. Any new compiler functionality (like race detector or coverage analysis) would benefit from extensive tests. Does gccgo use tests from the main Go repo? The main repo looks like the best place for them.