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- W4386486831 abstract "Compiler optimization can be functionally correct but not secure. Register allocation (RA) is an essential optimization performed by a compiler. This paper analyzes the security threat of RA concerning information flow. We define the relative security between two programs with respect to information flow. According to our definition of relative security, we show that RA is secure when there is no splitting and spilling into memory. We also show that register allocation with splitting is also secure based on our attack model. Then, we show that RA can lead to information leaks during spilling as it introduces new leaks through memory. Further, our experimental results on various benchmarks show that RA in LLVM is actually leaky. To address this vulnerability, we propose a secure RA approach in LLVM that mitigates the risk of new leaks during spilling. Our experimental evaluation on various benchmarks shows the effectiveness of our proposed approach." @default.
- W4386486831 created "2023-09-07" @default.
- W4386486831 creator A5014954893 @default.
- W4386486831 creator A5083752855 @default.
- W4386486831 date "2023-06-20" @default.
- W4386486831 modified "2023-09-27" @default.
- W4386486831 title "An Investigation into the Security of Register Allocation with Spilling and Splitting" @default.
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- W4386486831 doi "https://doi.org/10.1109/isvlsi59464.2023.10238662" @default.
- W4386486831 hasPublicationYear "2023" @default.
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