compiler: Simplify fission #778

Job	Run time
pytest-docker-py310-icx-omp-base	37m 1s
pytest-docker-py310-gcc-omp-arm64-base	28m 24s
pytest-docker-py310-gcc-omp-adjoint	22m 29s
pytest-docker-py310-icx-omp-adjoint	23m 3s
pytest-docker-py310-gcc-omp-base	33m 22s
pytest-ubuntu-py311-gcc10-noomp-adjoint	25m 31s
pytest-ubuntu-py310-gcc14-omp-adjoint	26m 39s
pytest-osx-py312-clang-omp-base	32m 30s
pytest-ubuntu-py311-gcc11-cxxnoomp-base	41m 38s
pytest-ubuntu-py310-gcc14-omp-base	42m 46s
pytest-ubuntu-py312-gcc12-cxxomp-base	51m 24s
pytest-ubuntu-py311-gcc10-noomp-base	37m 57s
pytest-ubuntu-py312-gcc12-cxxomp-adjoint	33m 54s
pytest-ubuntu-py310-gcc9-omp-adjoint	26m 49s
pytest-ubuntu-py313-gcc14-omp-adjoint	29m 42s
pytest-ubuntu-py310-gcc9-omp-base	40m 27s
pytest-ubuntu-py312-gcc13-omp-base	46m 9s
pytest-ubuntu-py313-gcc14-omp-base	40m 35s
pytest-docker-py310-gcc-omp-arm64-adjoint	19m 25s
pytest-ubuntu-py311-gcc11-cxxnoomp-adjoint	28m 18s
pytest-ubuntu-py312-gcc13-omp-adjoint	30m 42s
	11h 38m 45s

Provide feedback