Software systems

At Google, fuzzing C/C++ libraries has discovered tens of thousands of security and robustness bugs. However, these bugs are often reported much after they were introduced. Developers are provided only with fault-inducing test inputs and replication instructions that highlight a crash, but additional debugging information may be needed to localize the cause of the bug. Hence, developers need to...

While profile guided optimizations (PGO) and link time op-timizations (LTO) have been widely adopted, post link optimizations (PLO) have languished until recently when re-searchers demonstrated that late injection of profiles can yield significant improvements. However, the disassembly-driven, monolithic design of post link optimizers face scalingchallenges with large binaries and is at odds...

While profile guided optimizations (PGO) and link time optimiza-tions (LTO) have been widely adopted, post link optimizations (PLO)have languished until recently when researchers demonstrated that late injection of profiles can yield significant performance improvements. However, the disassembly-driven, monolithic design of post link optimizers face scaling challenges with large binaries andis...

While parallelism remains the main source of performance, architectural implementations and programming models change with each new hardware generation, often leading to costly application re-engineering. Most tools for performance portability require manual and costly application porting to yet another programming model. We propose an alternative approach that automatically translates programs...