simd_int_ops, hpc: AMX TDPBUSD arm for gemm_u8_i8 slice surface #414

Job	Run time
nostd/thumbv6m-none-eabi/stable	26s
clippy/1.95.0	42s
hpc-stream-parallel/rayon	1m 27s
native-backend/stable	8m 27s
format/stable	21s
tier4-avx512-check	38s
Pass MSRV values to other jobs	4s
docs/nightly	0s
nightly-simd-polyfill	0s
cross_test/${{ matrix.target }}/${{ matrix.rust }}	0s
cargo-careful	0s
miri	0s
tests/beta	11m 22s
blas-msrv	1m 1s
tests/stable	11m 50s
tests/1.95.0	11m 31s
conclusion	0s
	47m 49s

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