Fix undefined behaviour in dot product kernels #669

Job	Run time
Build on ubuntu-20.04 g++-7	1m 12s
Build on ubuntu-20.04 g++-8	1m 20s
Build on ubuntu-latest g++-9	1m 33s
Build on ubuntu-latest g++-10	1m 57s
Build on ubuntu20.04 aarch64 g++-8	9m 4s
Build on ubuntu-20.04 clang-7	1m 31s
Build on ubuntu20.04 aarch64 g++-9	13m 30s
Build on ubuntu-20.04 clang-8	1m 19s
Build on ubuntu20.04 aarch64 g++-10	12m 40s
Build on ubuntu-20.04 clang-9	1m 17s
Build on ubuntu22.04 aarch64 g++-12	11m 13s
Build on ubuntu20.04 aarch64 clang-9	19m 17s
Build on ubuntu-20.04 clang-10	1m 28s
Build on ubuntu-20.04 clang-11	1m 15s
Build on ubuntu20.04 aarch64 clang-10	22m 37s
Build on ubuntu-latest clang-12	1m 16s
Build on ubuntu22.04 aarch64 clang-14	20m 35s
Build on ubuntu-latest clang-13	1m 20s
Build on ubuntu22.04 armv7 g++-12	10m 1s
Build on ubuntu-latest clang-14	1m 24s
Build on ubuntu22.04 ppc64le g++-12	12m 11s
build-macos	1m 33s
Build on ubuntu22.04 s390x g++-12	7m 27s
Build on ubuntu22.04 riscv64 g++-12	7m 40s
Build static on ubuntu-latest	1m 31s
build-windows	3m 0s
	2h 49m 11s

Provide feedback