onnxruntime

34d70f5f - [QNN] MatMul Op Builder to Handle All Cases of ONNX's MatMul (#22639)

[QNN] MatMul Op Builder to Handle All Cases of ONNX's MatMul (#22639) ONNX's MatMul is same as numpy.matmul, which supports input tensors with rank >= 1. But QNN's MatMul can only support input tensors with rank >= 2. This PR is to add MatMulOpBuilder for QNN EP to build QNN graph to support all possible cases of ONNX's MatMul, by adding Reshape nodes if necessary, e.g., if Reshape 1D input to 2D if exists, and Reshape output to expected shape at the end.   This PR also tries to use FullyConnected Op for MatMul if 2nd input is 2D initializer or 1D tensor because FullyConnected is faster than MatMul on QNN EP. If 2nd input is 2D tensor, we require it an initializer because FullyConnected requires 2nd input in [n, k] shape, we can transpose it when graph building if it's an initializer (we don't want to add extra Transpose node). Use swin_base model as example, which contains several MatMul nodes with 2nd input is 2D initializer (not followed by Add), running on Gen3 mobile device, before the change, it takes 34.8876 ms, after this change, it's 27.0639 ms.