Publications CCF-A · Core A* CIRBench: Evaluating Large Language Models as LLVM IR Optimizers Zi Yang, Haifeng Ding, Fei Liu, Yingying Cheng, Han Cheng, Zhilei Chai, Haojie Zhou International Conference on Machine Learning (ICML 2026). CCF-A · Core A* IR-OptSet: An Optimization-Sensitive Dataset for Advancing LLM-Based IR Optimizer Zi Yang, Lei Qiu, Fang Lyu, Ming Zhong, Zhilei Chai, Haojie Zhou, Huimin Cui, Xiaobing Feng Conference on Neural Information Processing Systems (NeurIPS 2025).