Comment (by Roland Haas):

well yes, tickets don’t age out of existence Turns out that the proposed fix could have been applied 8 years ago. The IBM compiler still behaves the same way. The most likely system to encounter it today would be Summit though we use gcc to compile there right now (xl is Oak Ridge’s default though).

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/974/compilation-problem-in-loopcontrol-with