compiler: Rework HaloSpot optimization #7128

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	53m 19s
pytest-ubuntu-py311-gcc11-noomp-adjoint	39m 32s
pytest-ubuntu-py312-gcc12-omp-base	1h 10m 46s
pytest-ubuntu-py312-gcc12-omp-adjoint	50m 55s
pytest-ubuntu-py39-gcc7-omp-base	55m 32s
pytest-ubuntu-py39-gcc7-omp-adjoint	40m 37s
pytest-ubuntu-py310-gcc10-noomp-base	53m 7s
pytest-ubuntu-py310-gcc10-noomp-adjoint	39m 3s
pytest-ubuntu-py312-gcc13-omp-base	1h 11m 0s
pytest-ubuntu-py312-gcc13-omp-adjoint	51m 29s
pytest-ubuntu-py39-gcc9-omp-base	51m 37s
pytest-ubuntu-py39-gcc9-omp-adjoint	40m 46s
pytest-osx-py312-clang-omp-base	35m 56s
pytest-docker-py39-gcc-omp-base	47m 51s
pytest-docker-py39-gcc-omp-adjoint	37m 2s
pytest-docker-py39-icx-omp-base	39m 58s
pytest-docker-py39-icx-omp-adjoint	36m 0s
	13h 34m 30s

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