Add more SIMD intrinsics #457

Job	Run time
build (gcc-13.deb, --mini-tests)	5m 55s
build (gcc-13.deb, --std-tests)	5m 47s
duplicates	5s
build (gcc-13.deb, --test-libcore)	13m 11s
build_system	24s
build (gcc-13.deb, --extended-rand-tests)	8m 51s
build (gcc-13.deb, --extended-regex-example-tests)	6m 50s
build (gcc-13.deb, --extended-regex-tests)	11m 12s
build (gcc-13.deb, --test-successful-rustc --nb-parts 2 --current-part 0)	15m 57s
build (gcc-13.deb, --test-successful-rustc --nb-parts 2 --current-part 1)	15m 52s
build (gcc-13.deb, --projects)	15m 47s
build (gcc-13-without-int128.deb, --mini-tests)	5m 51s
build (gcc-13-without-int128.deb, --std-tests)	5m 55s
build (gcc-13-without-int128.deb, --test-libcore)	13m 25s
build (gcc-13-without-int128.deb, --extended-rand-tests)	8m 59s
build (gcc-13-without-int128.deb, --extended-regex-example-tests)	6m 38s
build (gcc-13-without-int128.deb, --extended-regex-tests)	12m 24s
build (gcc-13-without-int128.deb, --test-successful-rustc --nb-parts 2 --current-part 0)	16m 14s
build (gcc-13-without-int128.deb, --test-successful-rustc --nb-parts 2 --current-part 1)	16m 14s
build (gcc-13-without-int128.deb, --projects)	15m 59s
	3h 21m 30s

Provide feedback