[Bug middle-end/83069] [8 Regression] internal compiler error: in from_gcov_type, at profile-count.h:676

[rdapp at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83069

rdapp at linux dot vnet.ibm.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rdapp at linux dot vnet.ibm.com

--- Comment #11 from rdapp at linux dot vnet.ibm.com ---
416.gamess fails on S390 as well since r254888.

I didn't immediately get what the

      if (freq_max < 16)
        freq_max = 16;

part of the patch is supposed to achieve. When freq_max < 16, tmp will later be
larger than BLOCK_INFO (bb)->frequency which wasn't the case before. In the
worst case we approach max_count by 4 bits every time.
Why do we need a minimum freq_max? To ensure some scaling even for low
frequencies?