[Bug lto/68560] New: [6 Regression] The test gfortran.dg/shape_8.f90 now fails when compiled with -flto

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68560

            Bug ID: 68560
           Summary: [6 Regression] The test gfortran.dg/shape_8.f90 now
                    fails when compiled with -flto
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dominiq at lps dot ens.fr
                CC: hubicka at gcc dot gnu.org
  Target Milestone: ---

The test gfortran.dg/shape_8.f90 now (between r230703 and r230726) fails when
compiled with -flto

/opt/gcc/_clean/gcc/testsuite/gfortran.dg/shape_8.f90:10:0: warning: type of
'_gfortran_shape_4' does not match original declaration [-Wlto-type-mismatch]
    if (any(shape(x) /= [ 2, 5 ])) call abort


/opt/gcc/_clean/gcc/testsuite/gfortran.dg/shape_8.f90:13:0: note: type mismatch
in parameter 3
    if (any(shape(x,kind=4) /= [ 2, 5 ])) call abort


/opt/gcc/_clean/gcc/testsuite/gfortran.dg/shape_8.f90:13:0: note:
'_gfortran_shape_4' was previously declared here

i.e., the 'kind' argument is not understood as optional (it could be related to
pr46846).