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2013 May 15
2
[LLVMdev] [polly] Polly Loop info and LoopSimplify functionality
...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 = %polly.loop_header br label %polly.merge_new_and_old // This is exit from the loop polly.loop_header: ; preds = %polly.stmt.for.body6, %polly.start ... <some code> br i1 %9, label %polly.loop_b...