compiler: Rework HaloSpot optimization #7209

Job	Run time
pytest-ubuntu-py311-gcc11-noomp-base	52m 43s
pytest-ubuntu-py311-gcc11-noomp-adjoint	39m 48s
pytest-ubuntu-py312-gcc12-omp-base	1h 10m 2s
pytest-ubuntu-py312-gcc12-omp-adjoint	52m 8s
pytest-ubuntu-py39-gcc7-omp-base	55m 30s
pytest-ubuntu-py39-gcc7-omp-adjoint	41m 24s
pytest-ubuntu-py310-gcc10-noomp-base	53m 14s
pytest-ubuntu-py310-gcc10-noomp-adjoint	40m 19s
pytest-ubuntu-py312-gcc13-omp-base	1h 10m 43s
pytest-ubuntu-py312-gcc13-omp-adjoint	51m 33s
pytest-ubuntu-py39-gcc9-omp-base	56m 15s
pytest-ubuntu-py39-gcc9-omp-adjoint	40m 44s
pytest-osx-py312-clang-omp-base	36m 59s
pytest-docker-py39-gcc-omp-base	47m 55s
pytest-docker-py39-gcc-omp-adjoint	36m 21s
pytest-docker-py39-icx-omp-base	47m 16s
pytest-docker-py39-icx-omp-adjoint	42m 50s
	13h 55m 44s

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