Pr cc refactoring #1753

Job	Run time
macos-latest: clang++ Release Threads	20m 30s
macos-latest: clang++ Release OneTBB	8m 26s
macos-latest: clang++ Release PaRSEC	2m 41s
ubuntu-20.04: /usr/bin/g++-9 Release Threads	36m 25s
ubuntu-20.04: /usr/bin/g++-9 Release OneTBB	1m 54s
ubuntu-20.04: /usr/bin/g++-9 Release PaRSEC	1m 1s
macos-latest: clang++ Debug Threads	37m 33s
macos-latest: clang++ Debug OneTBB	2m 8s
macos-latest: clang++ Debug PaRSEC	5m 35s
ubuntu-20.04: /usr/bin/g++-9 Debug Threads	49m 3s
ubuntu-20.04: /usr/bin/g++-9 Debug OneTBB	1m 51s
ubuntu-20.04: /usr/bin/g++-9 Debug PaRSEC	1m 28s
	2h 48m 35s

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