Function tracing_core::stdlib::arch::x86_64::_tile_dpbssd
source · pub unsafe fn _tile_dpbssd<const DST: i32, const A: i32, const B: i32>()🔬This is a nightly-only experimental API. (
x86_amx_intrinsics #126622)Available on x86-64 only.
Expand description
Compute dot-product of bytes in tiles with a source/destination accumulator. Multiply groups of 4 adjacent pairs of signed 8-bit integers in a with corresponding signed 8-bit integers in b, producing 4 intermediate 32-bit results. Sum these 4 results with the corresponding 32-bit integer in dst, and store the 32-bit result back to tile dst.