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QuantMatmul+Gelu+DynamicMxQuant融合算子ascend950新增支持fp4输入，支持nd输入
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Thanks for sending an requirement! Please fill in the following template to help quickly solve your problem.
Backgroud（背景信息）
QuantMatmul+Gelu+DynamicMxQuant融合算子ascend950新增支持fp4输入，支持nd输入
Origin（信息来源）
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Benefit / Necessity （价值/作用）
Design（设计方案）