testsuite/tests/perf/compiler/T5837.stderr


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91


T5837.hs:8:6:
    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 the type signature for ‘t’:
      t :: forall a. (a ~ TF (a, Int)) => Int
    In the type signature for ‘t’: t :: (a ~ TF (a, Int)) => Int