Support approximate multi-pass INT8 matrix multiplication (2-pass asymmetric and 3-pass triangular) in QWIX - #373
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…mmetric and 3-pass triangular) in QWIX - Support asymmetric INT4 x INT8 signed matrix multiplication (asymmetric_signed_int4_int8_dot, 2 native INT4 passes). - Support triangular signed INT8 matrix multiplication (triangular_signed_int8_dot, 3 uncoupled INT4 passes dropping P00). - Support mxint8_multipass_dot with methods 'triangular' and 'asymmetric'. - Add unit tests verifying numerical accuracy and SQNR bounds (>33 dB for triangular). PiperOrigin-RevId: 981371612
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Support approximate multi-pass INT8 matrix multiplication (2-pass asymmetric and 3-pass triangular) in QWIX