covering all the hot paths through the loop. the VM would start tracing there. When the inner loop exits, the VM would detect that a different branch was taken. The VM would try to record a branch ...

不要假设 python 可用 ——Windows 上 where python 可能命中 Microsoft Store stub（假成功），必须先过 P1。 不要复用源码目录里现成的 start-zcode.bat ——它是上一台机器的安装器生成的产物，内嵌那台机器的 Python 路径和上游表；换机后必须由安装器重新生成。

CANNBot-DSL 是 JIT 编译的：第一次用某组参数调用 @host 函数时才编译，之后复用缓存。这一节讲清楚什么决定了「同一组参数」，以及怎么在「专门化带来的性能」和「编译次数爆炸」之间取舍。 传入真实的 NPU Tensor（例如 torch_npu 创建的 torch.Tensor）。框架根据 ...

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