Merge branch 'bugfix/conditionals-with-function-calls' into 'master'

ref:extensions/dune-codegen This does not work if the predicate contains a
function call (you cannot infer the possible return values at codegen time).

See merge request [extensions/dune-codegen!372]

  [extensions/dune-codegen!372]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/372

This does not work if the predicate contains a function call
(you cannot infer the possible return values at codegen time).

Merge branch 'bugfix/fix-nonlinear-tests' into 'master'

See merge request [extensions/dune-codegen!366]

  [extensions/dune-codegen!366]: Noneextensions/dune-codegen/merge_requests/366

Merge branch 'feature/allow-arbitrary-variables' into 'master'

ref:extensions/dune-codegen I have recently used AD w.r.t. custom variables in
forms. For some reasons, we were not allowing arbitrary Variable nodes so far.

@rhess You wrote the old handler for the adjoint stuff. You might want to have
a look.

See merge request [extensions/dune-codegen!362]

  [extensions/dune-codegen!362]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/362

Merge branch 'feature/no-constructor-arguments-for-user-provided-coefficient-functions' into 'master'

ref:extensions/dune-codegen The user does not expect us to handle this. This
whole problem of deterministic order of constructor arguments should be solved
properly of course.

See merge request [extensions/dune-codegen!364]

  [extensions/dune-codegen!364]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/364

Merge branch 'bugfix/nesting-tensors-and-index-sums' into 'master'

ref:extensions/dune-codegen In some complex scenarios, indices were consumed
on the first visit of an index sum expressions and were missing on later
visits.

See merge request [extensions/dune-codegen!363]

  [extensions/dune-codegen!363]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/363

The user does not expect us to handle this.
This whole problem of deterministic order of constructor arguments
should be solved properly of course.

In some complex scenarios, indices were consumed on the first visit
of an index sum expressions and were missing on later visits.

I have recently used AD w.r.t. custom variables in forms.
For some reasons, we were not allowing arbitrary Variable
nodes so far.

Merge branch 'feature/update-loopy' into 'master'

ref:extensions/dune-codegen Update the loopy submodule to latest master. This
includes switching to the latest version of the loopy language.

See merge request [extensions/dune-codegen!361]

  [extensions/dune-codegen!361]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/361

Latest loopy is much more restrictive w.r.t. not explicitly ordered statements.

Merge branch 'bugfix/cmake-executable-name' into 'master'

ref:extensions/dune-codegen Necessary for latest dune-testtools.

See merge request [extensions/dune-codegen!359]

  [extensions/dune-codegen!359]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/359

Necessary for latest dune-testtools.

Merge branch 'feature/driver-block' into 'master'

ref:extensions/dune-codegen Generate driver blocks as described in [#156].
This merge request does not implement the possibility to generate multiple
driver blocks from one UFL file. So far it only replaces the old driver
generation without adding new features. This will come in a follow up merge
request.

See merge request [extensions/dune-codegen!353]

  [#156]: gitlab.dune-project.org/NoneNone/issues/156
  [extensions/dune-codegen!353]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/353

Merge branch 'feature/vcl-version2' into 'master'

ref:extensions/dune-codegen The vectorclass library moved to Github and has
seen a major release. The MR switches the upstream repo and adapts to the new
library that has seen non-backwards compatible changes.

See merge request [extensions/dune-codegen!355]

  [extensions/dune-codegen!355]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/355

It is now permute4 instead of permute4d

Merge branch 'feature/allow-empty-formcompiler-section' into 'master'

ref:extensions/dune-codegen So far, this resulted in no operators being
generated.

See merge request [extensions/dune-codegen!356]

  [extensions/dune-codegen!356]: gitlab.dune-project.org/extensions/dune-codegen/merge_requests/356