fix: Fix strict-aliasing errors #251

Job	Run time
host-win (x86_64)	47s
host-win (armv7)	39s
host-win-msvc	2m 4s
host-win (aarch64)	1m 0s
host-x86 (x86_64, g++-10)	1m 59s
host-arm (armv7, none, none, g++-10)	4m 29s
host-x86 (x86_64, clang++-11)	37s
host-arm (armv7, none, none, clang++-11)	8m 33s
coding-style	14s
host-arm (aarch64, none, none, g++-10)	3m 48s
host-arm (aarch64, none, none, clang++-11)	6m 40s
host-arm (aarch64, crypto+crc, none, g++-10)	4m 42s
host-arm (aarch64, crypto+crc, none, clang++-11)	6m 22s
host-arm (armv7, none, -mcpu=cortex-a32 -mfpu=neon-fp-armv8, g++-10)	4m 17s
host-arm (armv7, none, -mcpu=cortex-a32 -mfpu=neon-fp-armv8, clang++-11)	6m 9s
test-win-msvc	45s
	53m 5s

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