[OpenACC] Fix 'copyout' allowed modifiers alwaysin vs alwaysout
While doing lowering, I discovered that the restriction onthe allowed
modifiers for 'copyout' didn't make sense! After discussion on the
OpenACC standards mailing list I discovered that this was a copy/paste
error during standardization that they intend to fix, and really meant
for copyout to allow alwaysout instead of alwaysin.
When implementing, I blindly followed the standard :)
This patch corrects the implementation to do what was meant.
llvm-project
0a2b6f6c - [OpenACC] Fix 'copyout' allowed modifiers alwaysin vs alwaysout
