Code gen bugs can happen, ad usually they can be worked around
MSVC 17.6 is not one of those cases:
59% tests passed, 120 tests failed out of 296
There really is no other choice than to refuse to build with this
compiler. Alternates that CAN be used are both 17.5 and the current
17.7 preview builds.
Upstream tracking ticket kindly submitted by @deadpin :
https://developercommunity.visualstudio.com/t/vs176/10293729
If a compiler is released in the 17.6.x series that has the bug
fixed, we can contract the range of blacklisted compiler versions
to cover just the affected range, for now however all of 17.6 marked
bad
96867a713b