Quantize softmax probabilities S into [0, 255] uint8_t and utilize unsigned-by-signed (uint8 * int8) matrix multiplication for SV accumulation, improving quantization precision. Add SIMD emulation fallback using SumOfMulQuadAccumulate and TableLookupBytes. - #1013
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…signed-by-signed (uint8 * int8) matrix multiplication for SV accumulation, improving quantization precision. Add SIMD emulation fallback using SumOfMulQuadAccumulate and TableLookupBytes. PiperOrigin-RevId: 977934533
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Quantize softmax probabilities S into [0, 255] uint8_t and utilize unsigned-by-signed (uint8 * int8) matrix multiplication for SV accumulation, improving quantization precision. Add SIMD emulation fallback using SumOfMulQuadAccumulate and TableLookupBytes.