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Gordon FossumRajalakshmi Srinivasaraghavan
571eadb8806
Gordon Fossum authored and Rajalakshmi Srinivasaraghavan committed bb2f52844bb
powerpc: Optimized ZGEMM kernel for POWER10

This patch introduces new optimized version of ZGEMM kernel
using power10 Matrix-Multiply Assist (MMA) feature introduced in
POWER ISA v3.1. This patch makes use of new POWER10 compute instructions
for matrix multiplication operation.

Tested on simulator and there are no new test failures.
Cycles count reduced by 30-50%  compared to POWER9 version depending on
M/N/K sizes.