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<div class="">On 13 Nov 2017, at 18:26, Quentin Colombet <<a href="mailto:qcolombet@apple.com" class="">qcolombet@apple.com</a>> wrote:</div>
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Hi Kristof,
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<div class="">On Nov 13, 2017, at 9:10 AM, Kristof Beyls <<a href="mailto:Kristof.Beyls@arm.com" class="">Kristof.Beyls@arm.com</a>> wrote:</div>
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Hi Quentin,
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<div class="">My only remaining concern is around ABI compatibility.</div>
<div class="">The following commit seems to indicate that in the previous round of evaluation, we didn’t find an existing ABI compatibility issue:</div>
<div class=""><a href="http://llvm.org/viewvc/llvm-project?view=revision&revision=311388" class="">http://llvm.org/viewvc/llvm-project?view=revision&revision=311388</a>.</div>
<div class="">I haven’t looked into the details of this issue - so maybe I’m worried over nothing?</div>
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<div class="">No, you’re right. The problem with ABI is if you are consistently wrong, then you won’t notice :).</div>
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<div class="">I’m wondering if since then on your side you did any testing around ABI compatibility?</div>
<div class="">E.g. building software where you semi-randomly build some functions through GlobalISel and some functions through DAGISel?</div>
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<div class="">Justin will look into that. Clang has utility script for that utils/ABITest.</div>
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<div class="">Given we will only be able to check iOS ABI, you may want to follow the same kind of validation on your side.</div>
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<div class="">I let you sync up with Justin for the method.</div>
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<div>Thanks Quentin & Justin!</div>
<div>I had a brief look at utils/ABITest. It seems a bit light on documentation on how to best run the test.</div>
<div>I’m happy to try and run it on linux if you can share some info on the best way to run that test, Justin?</div>
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<div>Thanks!</div>
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<div>Kristof</div>
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