intel constexpr failure

[tjhei]

as reported by @tamiko at https://cdash.43-1.org/testDetails.php?test=44331408&build=6387:
in Test: tensors/constexpr_tensor.debug:

suite/dealii/tests/tensors/constexpr_tensor.cc(174): error: expression must have a constant value
      DEAL_II_CONSTEXPR const auto dummy_4 = schur_product(a, ref);
                                             ^
Note: attempt to access run-time storage
/srv/testsuite/dealii/include/deal.II/base/tensor.h(2004): note: called from:
      tmp[i] = schur_product(Tensor<rank - 1, dim, Number>(src1[i]),
             ^

/srv/testsuite/dealii/tests/tensors/constexpr_tensor.cc(178): error: expression must have a constant value
      DEAL_II_CONSTEXPR const auto dummy_7 = adjugate(a);
                                             ^
Note: attempt to access run-time storage
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1813): note: called from:
      tt[d] = t[d] * factor;
            ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1839): note: called from:
    return t * factor;
             ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(2613): note: called from:
    return determinant(t) * invert(t);
                          ^

/srv/testsuite/dealii/tests/tensors/constexpr_tensor.cc(179): error: expression must have a constant value
      DEAL_II_CONSTEXPR const auto dummy_8 = cofactor(a);
                                             ^
Note: attempt to access run-time storage
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1813): note: called from:
      tt[d] = t[d] * factor;
            ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1839): note: called from:
    return t * factor;
             ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(2613): note: called from:
    return determinant(t) * invert(t);
                          ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(2635): note: called from:
    return transpose(adjugate(t));
                             ^

/srv/testsuite/dealii/tests/tensors/constexpr_tensor.cc(34): error: expression must have a constant value
    DEAL_II_CONSTEXPR const auto d = a * 2.;
                                     ^
Note: attempt to access run-time storage
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1813): note: called from:
      tt[d] = t[d] * factor;
            ^
          detected during instantiation of "void test_constexpr_tensor_constructors<rank,dim,Number>() [with rank=2, dim=1, Number=float]" at line 96

/srv/testsuite/dealii/tests/tensors/constexpr_tensor.cc(35): error: expression must have a constant value
    DEAL_II_CONSTEXPR const auto e = 2. * a;
                                     ^
Note: attempt to access run-time storage
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1813): note: called from:
      tt[d] = t[d] * factor;
            ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1839): note: called from:
    return t * factor;
             ^
          detected during instantiation of "void test_constexpr_tensor_constructors<rank,dim,Number>() [with rank=2, dim=1, Number=float]" at line 96

/srv/testsuite/dealii/tests/tensors/constexpr_tensor.cc(37): error: expression must have a constant value
    DEAL_II_CONSTEXPR const auto g = d + e;
                                     ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1813): note: temporary object is not constant
      tt[d] = t[d] * factor;
              ^
          detected during instantiation of "void test_constexpr_tensor_constructors<rank,dim,Number>() [with rank=2, dim=1, Number=float]" at line 96

/srv/testsuite/dealii/tests/tensors/constexpr_tensor.cc(38): error: expression must have a constant value
    DEAL_II_CONSTEXPR const auto h = d - e;
                                     ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1813): note: temporary object is not constant
      tt[d] = t[d] * factor;
              ^
          detected during instantiation of "void test_constexpr_tensor_constructors<rank,dim,Number>() [with rank=2, dim=1, Number=float]" at line 96

/srv/testsuite/dealii/tests/tensors/constexpr_tensor.cc(34): error: expression must have a constant value
    DEAL_II_CONSTEXPR const auto d = a * 2.;
                                     ^
Note: attempt to access run-time storage
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1813): note: called from:
      tt[d] = t[d] * factor;
            ^
          detected during instantiation of "void test_constexpr_tensor_constructors<rank,dim,Number>() [with rank=2, dim=2, Number=float]" at line 97

/srv/testsuite/dealii/tests/tensors/constexpr_tensor.cc(35): error: expression must have a constant value
    DEAL_II_CONSTEXPR const auto e = 2. * a;
                                     ^
Note: attempt to access run-time storage
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1813): note: called from:
      tt[d] = t[d] * factor;
            ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1839): note: called from:
    return t * factor;
             ^
          detected during instantiation of "void test_constexpr_tensor_constructors<rank,dim,Number>() [with rank=2, dim=2, Number=float]" at line 97

/srv/testsuite/dealii/tests/tensors/constexpr_tensor.cc(37): error: expression must have a constant value
    DEAL_II_CONSTEXPR const auto g = d + e;
                                     ^
/srv/testsuite/dealii/include/deal.II/base/tensor.h(1813): note: temporary object is not constant
      tt[d] = t[d] * factor;
...

[rezarastak]

Reminds me of #8410 and #8413 where there was also some issue with DEAL_II_CONSTEXPR and the intel compiler. We can possibly disable DEAL_II_CONSTEXPR for icc altogether.

[drwells]

Do we remember which version of ICC this was? I am pretty sure we fixed this but I'd like to check.

[bangerth]

It's been about four years without activity here. Let me close this -- we can always re-open if relevant.