Fix UB in _mm_movemask_ps, _mm_movemask_pd, _mm256_movemask_ps and _mm256_movemask_pd #1833

Job	Run time
Check Style	20s
Test (i686-unknown-linux-gnu)	3m 15s
Env Override	23s
Test (x86_64-unknown-linux-gnu)	8m 11s
Build Documentation	1m 27s
Build std_detect	1m 51s
Test (x86_64-unknown-linux-gnu-emulated)	12m 4s
Test (arm-unknown-linux-gnueabihf)	3m 14s
Automatic intrinsic verification	43s
Test (armv7-unknown-linux-gnueabihf)	16m 51s
Test (aarch64-unknown-linux-gnu)	30m 36s
Test (riscv64gc-unknown-linux-gnu)	2m 33s
Test (powerpc64le-unknown-linux-gnu)	6m 47s
Test (s390x-unknown-linux-gnu)	3m 12s
Test (wasm32-wasi)	3m 3s
Test (i586-unknown-linux-gnu)	3m 40s
Test (nvptx64-nvidia-cuda)	41s
Test (thumbv6m-none-eabi)	21s
Test (thumbv7m-none-eabi)	21s
Test (thumbv7em-none-eabi)	19s
Test (thumbv7em-none-eabihf)	19s
Test (aarch64-apple-darwin)	1m 37s
Test (x86_64-pc-windows-msvc)	12m 41s
Test (i686-pc-windows-msvc)	5m 5s
Test (x86_64-apple-darwin, macos-11)	7m 51s
	2h 7m 25s

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