AutoVecCoder: Teaching LLMs to Generate Explicitly Vectorized Code

In three linesAutoVecCoder teaches LLMs to generate explicit vectorized code via SIMD. The framework combines VecPrompt (data synthesis to inject intrinsic knowledge) and VecRL (reinforcement learning aligned with execution efficiency). AutoVecCoder-8B achieves state-of-the-art on SimdBench (SSE/AVX) subsets and sometimes surpasses -O3 optimizations.

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