[Bug libstdc++/83120] New: [8 Regression] ext/special_functions/hyperg failure on AIX

["dje at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83120

            Bug ID: 83120
           Summary: [8 Regression] ext/special_functions/hyperg failure on
                    AIX
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dje at gcc dot gnu.org
  Target Milestone: ---
            Target: power*-*-aix*

$ ./check_value.exe  
/nasfarm/edelsohn/src/src/libstdc++-v3/testsuite/ext/special_functions/hyperg/check_value.cc:12315:
void test(const testcase_hyperg<Ret> (&)[Num], Ret) [with Ret = double;
unsigned int Num = 19]: Assertion 'max_abs_frac < toler' failed.
IOT/Abort trap (core dumped)

$ ./check_value.exe 
line 12315  max_abs_frac = 4.82864e-13
line 12315  max_abs_frac = 5.15741e-12
line 12315  max_abs_frac = 3.10473e-11
line 12315  max_abs_frac = 1.09304e-12
line 12315  max_abs_frac = 4.82864e-13
line 12315  max_abs_frac = 2.64325e-12
line 12315  max_abs_frac = 3.21576e-12
line 12315  max_abs_frac = 2.58658e-12
line 12315  max_abs_frac = 6.15743e-13
line 12315  max_abs_frac = 1.87073e-10
line 12315  max_abs_frac = 7.72796e-10
line 12315  max_abs_frac = 5.19491e-09
line 12315  max_abs_frac = 2.15517e-10
line 12315  max_abs_frac = 5.15741e-12
line 12315  max_abs_frac = 3.10473e-11
line 12315  max_abs_frac = 1.09304e-12
line 12315  max_abs_frac = 1.87073e-10
line 12315  max_abs_frac = 7.72796e-10
line 12315  max_abs_frac = 5.19491e-09
line 12315  max_abs_frac = 2.15517e-10
line 12315  max_abs_frac = 1.68813e-09
line 12315  max_abs_frac = 2.64594e-08
line 12315  max_abs_frac = 3.02697e-07
line 12315  max_abs_frac = 4.34529e-07
line 12315  max_abs_frac = 2.36511e-07