testsuite/tests/perf/compiler/T5837.stderr


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T5837.hs:8:6: error:
    Reduction stack overflow; size = 51
    When simplifying the following type:
      TF
        (TF
           (TF
              (TF
                 (TF
                    (TF
                       (TF
                          (TF
                             (TF
                                (TF
                                   (TF
                                      (TF
                                         (TF
                                            (TF
                                               (TF
                                                  (TF
                                                     (TF
                                                        (TF
                                                           (TF
                                                              (TF
                                                                 (TF
                                                                    (TF
                                                                       (TF
                                                                          (TF
                                                                             (TF
                                                                                a))))))))))))))))))))))))
      ~ (TF
           (TF
              (TF
                 (TF
                    (TF
                       (TF
                          (TF
                             (TF
                                (TF
                                   (TF
                                      (TF
                                         (TF
                                            (TF
                                               (TF
                                                  (TF
                                                     (TF
                                                        (TF
                                                           (TF
                                                              (TF
                                                                 (TF
                                                                    (TF
                                                                       (TF
                                                                          (TF
                                                                             (TF
                                                                                (TF
                                                                                   (TF
                                                                                      a))))))))))))))))))))))))),
         TF
           (TF
              (TF
                 (TF
                    (TF
                       (TF
                          (TF
                             (TF
                                (TF
                                   (TF
                                      (TF
                                         (TF
                                            (TF
                                               (TF
                                                  (TF
                                                     (TF
                                                        (TF
                                                           (TF
                                                              (TF
                                                                 (TF
                                                                    (TF
                                                                       (TF
                                                                          (TF
                                                                             (TF
                                                                                (TF
                                                                                   (TF
                                                                                      Int))))))))))))))))))))))))))
    Use -freduction-depth=0 to disable this check
    (any upper bound you could choose might fail unpredictably with
     minor updates to GHC, so disabling the check is recommended if
     you're sure that type checking should terminate)
    In the ambiguity check for ‘t’
    In the type signature:
      t :: (a ~ TF (a, Int)) => Int