[Bug tree-optimization/92924] [10 regression] reproducible indirect call profile merging causes 80% slowdown in Firefox pref-reftest-singletons id-getter microbenchmarks

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92924

--- Comment #15 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
This is frequency scaled by #of executions:

== Stats for /aux/hubicka/firefox2019-trunktest ==
stats for indirect_call:
  total: 160451
  invalid: 542 (0.34%) freq:276193364 (33.87%)
  tracked values:
    0 values:   134367 times (83.74%) freq:    1338929 (0.16%)
    1 values:    21514 times (13.41%) freq:  264147030 (32.39%)
    2 values:     3151 times (1.96%) freq:   136985793 (16.80%)
    3 values:      866 times (0.54%) freq:   136555223 (16.75%)
    4 values:       11 times (0.01%) freq:      248712 (0.03%)

stats for topn:
  total: 7140
  invalid: 24 (0.34%) freq:2147128 (15.00%)
  tracked values:
    0 values:     6776 times (94.90%) freq:    2107083 (14.72%)
    1 values:      242 times (3.39%) freq:     6758801 (47.22%)
    2 values:       79 times (1.11%) freq:     2233704 (15.60%)
    3 values:       19 times (0.27%) freq:     1067609 (7.46%)
    4 values:        0 times (0.00%) freq:           0 (0.00%)

So this makes invalidation rate quite high.