onnxruntime

da3dd398 - Kernels for QLinearConv with symmetrically quantized filter (#9323)

Kernels for QLinearConv with symmetrically quantized filter (#9323) Add kernels for QLinearConv with symmetric quantized filter, e.g., filter type is int8 and zero point of filter is 0. This PR includes kernels for avx2, avxvnni, avx512 and avx 512 vnni. Will adds kernels for ARM64 in following PR. Kernels uses direct input buffer directly for pointwise, and in-direct buffer for depthwise and non-group conv. The advantages of those new kernels are: no need to compute the sum of each pixel output image, and sum/offset of filter can be combined with bias. with in-direct buffer, im2col returns an array of buffer pointers instead of memcpy'ing the original data. This saves memcpy time and reduces the size of the intermediate buffer needed to hold the im2col transform. In the future, will compute im2col ahead of time for input with fixed input size.