Bug#976530: dolphin-emu: FTBFS: tests failed

[Jos]

Hi,

The reason why one of the unit tests failed is because this unit test was
triggering undefined behavior when generating its test values. In other
words, there was no bug in the actual program, just in the unit test. This
bug was fixed upstream in
https://github.com/dolphin-emu/dolphin/commit/8d21fa56a1133529273d57df06888e42bb63fde7
(though do note that this commit depends on an earlier commit from the same
pull request).

For what it's worth, in upstream we've only encountered this issue on
arm64, not amd64. But since it is undefined behavior, I'm not too surprised
that this issue doesn't act the same way in your build environment as in
ours.

I'm not sure how you want to proceed, but I hope this information was
useful.

JosJuice,
dolphin-emu upstream maintainer