[PATCH] D12875: Stripping invariant.group metadata in CodeGenPrepare

[Piotr Padlewski via llvm-commits]

Prazek added a comment.

Because I remove all invariant.group.barrier's in CodeGenPrepare, I also want to remove invariant.group metadata. After removing all invariant.barriers it would be invalid to optimize based on invariant.group metadata, so I don't want to leave trap for future programmer.


http://reviews.llvm.org/D12875