compiler: Rework HaloSpot optimization #7186

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	52m 53s
pytest-ubuntu-py311-gcc11-noomp-adjoint	40m 9s
pytest-ubuntu-py312-gcc12-omp-base	1h 11m 9s
pytest-ubuntu-py312-gcc12-omp-adjoint	51m 56s
pytest-ubuntu-py39-gcc7-omp-base	55m 6s
pytest-ubuntu-py39-gcc7-omp-adjoint	41m 9s
pytest-ubuntu-py310-gcc10-noomp-base	53m 21s
pytest-ubuntu-py310-gcc10-noomp-adjoint	40m 23s
pytest-ubuntu-py312-gcc13-omp-base	1h 11m 5s
pytest-ubuntu-py312-gcc13-omp-adjoint	52m 14s
pytest-ubuntu-py39-gcc9-omp-base	56m 13s
pytest-ubuntu-py39-gcc9-omp-adjoint	41m 41s
pytest-osx-py312-clang-omp-base	36m 49s
pytest-docker-py39-gcc-omp-base	47m 52s
pytest-docker-py39-gcc-omp-adjoint	36m 41s
pytest-docker-py39-icx-omp-base	40m 19s
pytest-docker-py39-icx-omp-adjoint	36m 22s
	13h 45m 22s

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