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[Operator]Delete XShape for unsqueeze output by Aurelius84 · Pull Request #67373 · PaddlePaddle/Paddle · GitHub
Aurelius84
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zyfncg,
chen2016013,
gongshaotian and
XiaoguangHu01
August 15, 2024 02:10
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[Operator]Delete XShape for unsqueeze output #67373
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你的PR提交成功，感谢你对开源项目的贡献! |
Aurelius84
requested review from
zyfncg,
chen2016013,
gongshaotian and
XiaoguangHu01
zyfncg
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XiaoguangHu01
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LGTM
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PR Category
Operator Mechanism
PR Types
Deprecations
Description
Pcard-67164
What's New?
退场了动态图和新IR下 unsqueeze 算子中的XShape字段，实现动静统一，具体改动：
1. 在legacy里隔离旧静态图的定义
动态图和新IR的算子体系使用了 phi/ops.yaml，实现理想态的动静统一。为了保证旧IR下的算子表示层面的兼容，因此在legacy目录下static_ops.yaml和static_backward.yaml单独定义了unsqueeze的前反向算子，Kernel使用 unsqueeze_with_xshape，并在Kernel定义中标记FIXME
2. 给旧IR下新增了WithXShape后缀的spmd推导规则
由于在旧的IR体系下，存在对unsqueeze2算子的切分推导的使用，涉及到xshape的推导，由于此次退场的原则是兼容旧IR机制 ，故需要同步添加WithXShape后缀的spmd推导规则，以区分新IR下推到规则，后续可以随着旧IR体系一起退场
3. 修改了pd_to_cinn pass 逻辑
移除了pd_to_cinn_pass中unSqueezeOpPattern中的ReplaceWithCinnReshape逻辑，无需再处理XShape