[Bug rtl-optimization/119071] [12/13/14/15 Regression] Miscompile at -O2

[law at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119071

--- Comment #9 from Jeffrey A. Law <law at gcc dot gnu.org> ---
WRT c#8.  That would be a bit of a surprise.  In *theory* it just allowed us to
remove reg->reg moves when the source and destination where the same reg.  So
if that caused a regression I suspect it was just latent.