Pr cc refactoring #1548

Job	Run time
macos-latest: clang++ Release Threads	22m 24s
macos-latest: clang++ Release OneTBB	4m 17s
macos-latest: clang++ Release PaRSEC	4m 21s
ubuntu-20.04: /usr/bin/g++-9 Release Threads	53m 27s
ubuntu-20.04: /usr/bin/g++-9 Release OneTBB	2m 32s
ubuntu-20.04: /usr/bin/g++-9 Release PaRSEC	3m 22s
macos-latest: clang++ Debug Threads	12m 10s
macos-latest: clang++ Debug OneTBB	2m 54s
macos-latest: clang++ Debug PaRSEC	3m 35s
ubuntu-20.04: /usr/bin/g++-9 Debug Threads	33m 47s
ubuntu-20.04: /usr/bin/g++-9 Debug OneTBB	2m 54s
ubuntu-20.04: /usr/bin/g++-9 Debug PaRSEC	2m 36s
	2h 28m 19s

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