https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113175

Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|libstdc++                   |testsuite

--- Comment #3 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
There's one single regression event, bringing the host runtime to about 1.63
seconds.  Then some time later, an additional 0.1 second was added
(accumulated).
I did not look into that latter regression.  The big one is clouded by a large
range of commits where max_size_type failed, due to r14-159-g03cebd304955a6.
This was fixed in r14-205-g83470a5cd4c3d2, at which time there the big
regression is seen for the first time.  That is also the "cause" for the
commit, because applying that commit to r14-158-g7d115e01411156 shows the same
number as for r14-205-g83470a5cd4c3d2.

Actually, it's the testsuite part of that patch, because with that reverted the
execution time backs down to 0.33 seconds.  IOW, this while PR is /testsuites. 
Not sure what to do to improve the execution time, as plain disabling the using
"signed_rep_t = __int128;" by making the first line "+#if 0 &&
__SIZEOF_INT128__" yields
/x/testsuite/std/ranges/iota/max_size_type.cc:36: note: the comparison reduces
to '(16 == 8)' 

Maybe the higher number for the execution time is actually the "right" one and
the range should be cut down to -100..100 for *all* targets?

HNY!

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