search for: r181987

...g on removing such hacks and this one was one of the larger ones remaining. I had two patches in my queue to address this. The first one makes Polly create loops in an already loop rotated form. The second patch adds the missing loop information updates. I committed these patches in r181986 and r181987. Could you check if those patches work for you and possibly even post review the commits in general. Thanks, Tobias

Tobias, I am working on one very well hidden issue with Polly loop structure. Here is a brief description. In polly::createLoop() we create something like this (topology is important): polly.start: ; preds = %polly.split_new_and_old ... <some code> br label %polly.loop_header polly.loop_after: ; preds =