[Accuracy diff No.141] Fix accuracy diff for paddle.Tensor.__mul__ API #74198
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| 你的PR提交成功，感谢你对开源项目的贡献! |
| /re-run all-failed |
| pr 修改的是提升精度，不知道为什么 npu 流水线出现精度问题，找不到测试文件 |
| /re-run all-failed |
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lshpku approved these changes Jul 29, 2025
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PR Category
Operator Mechanism
PR Types
Bug fixes
Description
日志显示 bfloat16 cpu 反向精度问题，误差出现在累加的时候
同 ElemwiseGradBroadcast1CPU 和 ElemwiseGradBroadcast2CPU 一样为 CommonElementwiseBroadcastBackward 中的实际计算函数 CommonGradBroadcastCPU 添加类型提升。
PaddleAPITest 测试通过
