Extend compiler cpu optmizations to loongarch64. #821

Job	Run time
Determine Python versions	5s
Run linters with pre-commit	1m 2s
Test building the documentation	1m 47s
Python 3.12 on ubuntu-20.04 (standalone: false, 32bit: false)	27m 43s
Python 3.12 on ubuntu-20.04 (standalone: false, 32bit: true)	25m 50s
Python 3.12 on ubuntu-20.04 (standalone: true, 32bit: false)	21m 40s
Python 3.12 on ubuntu-20.04 (standalone: true, 32bit: true)	21m 14s
Python 3.12 on windows-2019 (standalone: false, 32bit: false)	1h 10m 16s
Python 3.12 on windows-2019 (standalone: false, 32bit: true)	1h 9m 46s
Python 3.12 on windows-2019 (standalone: true, 32bit: false)	23m 54s
Python 3.12 on windows-2019 (standalone: true, 32bit: true)	24m 52s
Python 3.12 on macOS-11 (standalone: false, 32bit: false)	49m 54s
Python 3.12 on macOS-11 (standalone: false, 32bit: true)	47m 16s
Python 3.12 on macOS-11 (standalone: true, 32bit: false)	29m 11s
Python 3.12 on macOS-11 (standalone: true, 32bit: true)	28m 12s
Python 3.9 on ubuntu-20.04 (standalone: false, 32bit: false)	24m 11s
Python 3.9 on ubuntu-20.04 (standalone: true, 32bit: false)	19m 10s
Indicate completion to coveralls.io	14s
	8h 6m 17s

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