Remove KernelExecutor::fusion_

[wujingyue]

It's no longer necessary after #3263.

This partially rolls back #1930.

[github-actions]

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(Review updated until commit 537623d)

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⚡ Recommended focus areas for review Logic Change The isCompiled() function now checks if compiled_kernel_ is not null instead of checking if fusion_ or lowered_ is not null. This change may affect the logic of the program. if (isCompiled()) { validateDynamicSmemSize(dynamic_smem_size); } Removed Function The hasCompiledKernel() function has been removed. This function was used to check if a KernelExecutor has a compiled kernel to execute. // Register a post-lowering hooks that are called to modify the kernel after // lowering. The main use case is for unit tests to modify the kernel. void registerPostLoweringHook(std::function<void(kir::Kernel*)> hook) { post_lowering_hooks_.push_back(std::move(hook)); } // Returns whether this `KernelExecutor` has a compiled kernel to execute. bool isCompiled() const override { if (compiled_kernel_ != nullptr) { NVF_ERROR(compiled_kernel_->function != nullptr); } return validKernelId() && lowered_ && compiled_kernel_ != nullptr; } Removed Member Variable The fusion_ member variable has been removed. This variable was used to store a pointer to a Fusion object. // Kernel name for fusion executor std::string kernel_id_; std::unique_ptr<GpuLower> lowered_; // Track the block size this kernel was compiled with. If the block size // increases, recompile to adjust maxregister count. int64_t block_size_high_water_mark_ = 1; int64_t maxrregcount_high_water_mark_ = 255;

[Priya2698]

!test

[wujingyue]

!test

[wujingyue]

!build

[csarofeen]

@wujingyue just saw this got merged, I guess you may not have seen: #3468

If not, it might be good to look through. There isn't a big conflict, I just also removed fusion from KernelExecutor in that one too.