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...ine. If your non-default pass gets invalidated, then the default is used by any other transform that requests an analysis from that group. -- John T. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120711/25b1f97c/attachment.html>

Greetings folks! In working on a new optimization pass (splitting cold regions into separate functions based on branch probabilities) I've run into some limitations of the current pass manager infrastructure. After chatting about this with Nick, it seems that there are some pretty systematic weaknesses of the current design and implementation (but not with the fundamental concepts or