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2017 Aug 14
2
PHI nodes and connected ICMp
...sions does make it more difficult to compute trip counts, SCEV has some other patterns it tries to recognize even in cases where the relevant expressions could not be mapped to neat SCEV add recurrences. Another example: SCEV can compute the trip counts for strlen-like loops: https://godbolt.org/g/hWtEWm -- Sanjoy
2017 Aug 13
2
PHI nodes and connected ICMp
To continue this topic: sometimes SCEV's behavior is rather controversial : for loops with i changing as i \=2 for example, he can't figure what the type of expressions is, but surprisingly can determine max trip count. Shouldn't it be able to detect or not detect these parameters at the same time? 2017-08-11 15:56 GMT+02:00 Anastasiya Ruzhanskaya < anastasiya.ruzhanskaya at