[Dy2static] add set_dynamic_shape for dy2static high-level users. #58155
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PR types
Function optimization
PR changes
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Description
[Dy2static] add set_dynamic_shape for dy2static high-level users.
支持了控制流中动态修改shape的优化逻辑,不再需要使用reshape,可以直接使用这个函数:
这里的 dygraph_func 中的mask是一个动态shape,可以被 set_dynamic_shape 来显示指定。
注意这里的shape一定要对应,可以将某些值变为 -1 ,不可以随便指定。否则会有未定义错误。后续会添加更多的断言。
PCard-66972