Hello, In the backend I'm working on there is a value to handle each BB separately, Therefore I'd like to create a prologue for each BB and I was wondering what would be the correct way to do such a thing (I know there is a emitPrologue hook, but it's per function). The way I've figured out so far are: 1. Making the EntryToken SDNode illegal and use the LowerOperation hook to add things after that node without removing it. 2. Writing a custom pass that will iterate through all the BB's and add a prologue to them. I was wondering if there is any other way I've missed, and would like to hear your opinion on the 2 ways I've found, thank you very much! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20171206/24d19652/attachment.html>