More altivec instructions #1917

Job	Run time
Check Style	14s
Env Override	13s
Build std_detect	1m 0s
Build Documentation	1m 7s
Test (i686-unknown-linux-gnu)	1m 54s
Automatic intrinsic verification	28s
Test (x86_64-unknown-linux-gnu)	3m 50s
Test (x86_64-unknown-linux-gnu-emulated)	9m 18s
Test (arm-unknown-linux-gnueabihf)	1m 16s
Test (armv7-unknown-linux-gnueabihf)	10m 54s
Test (aarch64-unknown-linux-gnu)	21m 41s
Test (riscv64gc-unknown-linux-gnu)	1m 28s
Test (powerpc64le-unknown-linux-gnu)	3m 59s
Test (s390x-unknown-linux-gnu)	1m 17s
Test (wasm32-wasi)	1m 26s
Test (i586-unknown-linux-gnu)	1m 48s
Test (nvptx64-nvidia-cuda)	28s
Test (thumbv6m-none-eabi)	13s
Test (thumbv7m-none-eabi)	12s
Test (thumbv7em-none-eabi)	15s
Test (thumbv7em-none-eabihf)	13s
Test (aarch64-apple-darwin)	2m 17s
Test (x86_64-pc-windows-msvc)	6m 16s
Test (i686-pc-windows-msvc)	2m 53s
Test (x86_64-apple-darwin, macos-11)	7m 24s
success	1s
	1h 22m 5s

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