[Bug fix] Fix missing instantiation of isfinite/isinf/isnan kernels on Windows#75817
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luotao1 merged 1 commit intoPaddlePaddle:developfrom Oct 14, 2025
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…n Windows 三处改动都是为了解决 Windows 平台上 `isfinite` 系列算子在编译/链接阶段缺失实例化的问题，让 CPU/GPU 的显式模板实例都能正常生成： - isfinite_kernel.h：在 `_WIN32` 分支补充了 `INSTANTIATE_ISFINITE_KERNEL_Isfinite` 宏定义。之前只有 `isinf` 和 `isnan` 的显式实例化宏，Windows 链接时会缺少 `IsfiniteKernel` 的实例。 - isfinite_kernel.cc：在 Windows 条件编译区新增了 `IsfiniteKernel` 对各数据类型（包含 float/bfloat16 与复数）的显式模板实例化，避免 Windows 链接缺符号；顺带补齐了 `Isinf/Isnan` 的复数类型实例。 - isfinite_kernel.cu：同样在 Windows 分支补充了 GPU 侧 `IsfiniteKernel` 的显式实例化，确保在 GPU 后端也不会漏掉相应符号。 整体效果是在 Windows 编译器不会自动生成这些内联模板的场景下，手动提供所需实例，消除 `isfinite`/`isinf`/`isnan` 内核的链接缺失问题。
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#75684 (review) approved by @swgu98 |
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PR Category
Operator Mechanism
PR Types
Bug fixes
Description
三处改动都是为了解决 Windows 平台上
isfinite系列算子在编译/链接阶段缺失实例化的问题，让 CPU/GPU 的显式模板实例都能正常生成：_WIN32分支补充了INSTANTIATE_ISFINITE_KERNEL_Isfinite宏定义。之前只有isinf和isnan的显式实例化宏，Windows 链接时会缺少IsfiniteKernel的实例。IsfiniteKernel对各数据类型（包含 float/bfloat16 与复数）的显式模板实例化，避免 Windows 链接缺符号；顺带补齐了Isinf/Isnan的复数类型实例。IsfiniteKernel的显式实例化，确保在 GPU 后端也不会漏掉相应符号。整体效果是在 Windows 编译器不会自动生成这些内联模板的场景下，手动提供所需实例，消除
isfinite/isinf/isnan内核的链接缺失问题。从以下PR拆分出来：