[Bug fortran/82976] New: [8 Regression] Error: non-trivial conversion at assignment since r254526

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82976

            Bug ID: 82976
           Summary: [8 Regression] Error: non-trivial conversion at
                    assignment since r254526
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: jb at gcc dot gnu.org
  Target Milestone: ---

Starting from the mentioned revision we ICE on:

$ gfortran
/home/marxin/Programming/gcc/gcc/testsuite/gfortran.dg/realloc_on_assign_16.f90
-Ofast -fno-tree-forwprop

Error: non-trivial conversion at assignment
logical(kind=4)
logical(kind=1)
_54 = 0;
/home/marxin/Programming/gcc/gcc/testsuite/gfortran.dg/realloc_on_assign_16.f90:28:0:
Error: non-trivial conversion at assignment
logical(kind=4)
logical(kind=1)
_47 = 0;
during GIMPLE pass: dom
/home/marxin/Programming/gcc/gcc/testsuite/gfortran.dg/realloc_on_assign_16.f90:28:0:
internal compiler error: verify_gimple failed
0xc63c6d verify_gimple_in_cfg(function*, bool)
        .././../gcc/tree-cfg.c:5392
0xb36fc6 execute_function_todo
        .././../gcc/passes.c:1994
0xb38042 execute_todo
        .././../gcc/passes.c:2048