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> On that note, I think that in general it would be useful to have some > target-independent (CodeGen) pass that would do the majority of the > work for hardware loop generation. I have thought about it, but I > won't be able to do anything in the short term. > > -Krzysztof > I think a first and useful step would be to let targets optionally have the loop induction

On 3/29/2016 3:05 AM, Jonas Paulsson via llvm-dev wrote: > Could this be done somehow, or is it really so that all targets have to > have their own passes to do this? In the Hexagon backend we also have a separate pass that converts compare+branch loops into hardware loops. We recognize several different patterns of the controlling induction variable, including cases where the increment