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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.15094 |
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| _version_ | 1866911598653734912 |
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| author | Zhu, Yu Du, Qiming Jin, Yuqiong He, Woji Lian, Hang Zhou, Xin Xu, Jinchen Shan, Zheng |
| author_facet | Zhu, Yu Du, Qiming Jin, Yuqiong He, Woji Lian, Hang Zhou, Xin Xu, Jinchen Shan, Zheng |
| contents | To address the urgent need in the NISQ era for high-performance, scalable quantum compilers and to advance the integration of classical and quantum computing, we present QLLVM, an advanced Quantum-Classical co-compilation framework built on LLVM. To our knowledge, QLLVM delivers an end-to-end, LLVM-based compilation workflow that unifies the build of classical high-performance programs, including CUDA, MPI, and C++, together with quantum programs into a single executable. For quantum program compilation, QLLVM adopts a three-stage design: high-level optimizations are implemented in the MLIR Quantum dialect and then lowered to QIR, an LLVM IR-based representation, for low-level optimization and hardware mapping. Its extensible architecture and seamless interoperability with classical high-performance computing provide an efficient, flexible, industrial-grade compilation infrastructure for future quantum software development. Experimental results show that, on the MQTBench benchmark suite, QLLVM reduces circuit depth and gate counts compared with state-of-the-art compilers and demonstrates clear advantages in compiling hybrid classical-quantum programs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_15094 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | QLLVM: A Scalable Quantum-Classical Co-Compilation Framework based on LLVM Zhu, Yu Du, Qiming Jin, Yuqiong He, Woji Lian, Hang Zhou, Xin Xu, Jinchen Shan, Zheng Quantum Physics To address the urgent need in the NISQ era for high-performance, scalable quantum compilers and to advance the integration of classical and quantum computing, we present QLLVM, an advanced Quantum-Classical co-compilation framework built on LLVM. To our knowledge, QLLVM delivers an end-to-end, LLVM-based compilation workflow that unifies the build of classical high-performance programs, including CUDA, MPI, and C++, together with quantum programs into a single executable. For quantum program compilation, QLLVM adopts a three-stage design: high-level optimizations are implemented in the MLIR Quantum dialect and then lowered to QIR, an LLVM IR-based representation, for low-level optimization and hardware mapping. Its extensible architecture and seamless interoperability with classical high-performance computing provide an efficient, flexible, industrial-grade compilation infrastructure for future quantum software development. Experimental results show that, on the MQTBench benchmark suite, QLLVM reduces circuit depth and gate counts compared with state-of-the-art compilers and demonstrates clear advantages in compiling hybrid classical-quantum programs. |
| title | QLLVM: A Scalable Quantum-Classical Co-Compilation Framework based on LLVM |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2604.15094 |