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...transformations in a quick > pass, and having a more aggressive pass that does preserve loop structure? It's not clear what the problem is. Dan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121017/756e0442/attachment.html>

Hello All, The current implementation of the CFG simplification is loop-agnostic. In the past I have observed that it can perform transformations that can be detrimental to the loop structure. One example that I recall, is converting a loop like this: while (...) { ... if (cond) continue; ... } into two nested loops. Specifically, the "continue" branch