[Bug c/93763] New: ice in propagate_vals_across_arith_jfunc, at ipa-cp.c:2039

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93763

            Bug ID: 93763
           Summary: ice in propagate_vals_across_arith_jfunc, at
                    ipa-cp.c:2039
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 47849
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47849&action=edit
gzipped C source code

For the attached C code, with compiler flag -O3,
sometime between 20200207 and 20200210, does this:

../results.20200207/bin/gcc
../results.20200210/bin/gcc
during IPA pass: cp
c_code/2_2/@msem.nim.c:43465:1: internal compiler error: in
propagate_vals_acros
s_arith_jfunc, at ipa-cp.c:2039
0x821b89 propagate_vals_across_arith_jfunc
        ../../trunk.git/gcc/ipa-cp.c:2039
0x19364e5 propagate_vals_across_pass_through
        ../../trunk.git/gcc/ipa-cp.c:2093
0x19364e5 propagate_scalar_across_jump_function
        ../../trunk.git/gcc/ipa-cp.c:2171
0x19364e5 propagate_constants_across_call
        ../../trunk.git/gcc/ipa-cp.c:2867

I will have my usual go at reducing the code.