Extending the C/C++ Memory Model with Inline Assembly
<|reference_start|>Extending the C/C++ Memory Model with Inline Assembly: Programs written in C/C++ often include inline assembly: a snippet of architecture-specific assembly code used to access low-level functionalities that are impossible or expensive to simulate in the source language. Although inline assembly is widely used, its semantics has not yet been formally studied.   In this paper, we overcome this deficiency by investigating the effect of inline assembly on the consistency semantics of C/C++ programs. We propose the first memory model of the C++ Programming Language with support for inline assembly for Intel's x86 including non-temporal stores and store fences. We argue that previous provably correct compiler optimizations and correct compiler mappings should remain correct under such an extended model and we prove that this requirement is met by our proposed model.<|reference_end|>
@article{de vilhena2024extending,
    title={Extending the C/C++ Memory Model with Inline Assembly},
    author={Paulo Em'ilio de Vilhena, Ori Lahav, Viktor Vafeiadis, Azalea Raad},
    journal={arXiv preprint arXiv:2408.17208},
    year={2024},
    doi={10.1145/3689749},
    archivePrefix={arXiv},
    eprint={2408.17208},
    primaryClass={cs.PL}
}