compiler: Rework HaloSpot optimization #7114

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	53m 17s
pytest-ubuntu-py311-gcc11-noomp-adjoint	37m 51s
pytest-ubuntu-py312-gcc12-omp-base	1h 11m 21s
pytest-ubuntu-py312-gcc12-omp-adjoint	51m 36s
pytest-ubuntu-py39-gcc7-omp-base	55m 14s
pytest-ubuntu-py39-gcc7-omp-adjoint	41m 12s
pytest-ubuntu-py310-gcc10-noomp-base	54m 41s
pytest-ubuntu-py310-gcc10-noomp-adjoint	40m 2s
pytest-ubuntu-py312-gcc13-omp-base	1h 12m 3s
pytest-ubuntu-py312-gcc13-omp-adjoint	51m 48s
pytest-ubuntu-py39-gcc9-omp-base	55m 18s
pytest-ubuntu-py39-gcc9-omp-adjoint	40m 30s
pytest-osx-py312-clang-omp-base	34m 29s
pytest-docker-py39-gcc-omp-base	50m 13s
pytest-docker-py39-gcc-omp-adjoint	36m 49s
pytest-docker-py39-icx-omp-base	40m 49s
pytest-docker-py39-icx-omp-adjoint	35m 47s
	13h 43m 0s

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