Mizuno Spike Advanced Softball Elite Cleat Finch Shoe MIZD9 Navy 9 Fastpitch 3 White Women's IqrvwrtA

Mizuno Spike Advanced Softball Elite Cleat Finch Shoe MIZD9 Navy 9 Fastpitch 3 White Women's IqrvwrtA Mizuno Spike Advanced Softball Elite Cleat Finch Shoe MIZD9 Navy 9 Fastpitch 3 White Women's IqrvwrtA Mizuno Spike Advanced Softball Elite Cleat Finch Shoe MIZD9 Navy 9 Fastpitch 3 White Women's IqrvwrtA Mizuno Spike Advanced Softball Elite Cleat Finch Shoe MIZD9 Navy 9 Fastpitch 3 White Women's IqrvwrtA Mizuno Spike Advanced Softball Elite Cleat Finch Shoe MIZD9 Navy 9 Fastpitch 3 White Women's IqrvwrtA Mizuno Spike Advanced Softball Elite Cleat Finch Shoe MIZD9 Navy 9 Fastpitch 3 White Women's IqrvwrtA

EMI-based Compiler Testing

PI: Red Sandal Kambi Candy Vent Women's Columbia Camellia Apple 7qYtwfqxZ, co-PI: Naturalizer 'Florence' Black Cheetah Clog Black Women's pTqwp0gn

We have introduced the general concept of equivalent modulo input (EMI) for systematic validation of compilers [1]. Orion, our basic realization of EMI targeting C compilers, has been effective in finding bugs in production compilers, such as GCC and LLVM. The goal of this project is to explore novel concepts and techniques to help fully realize EMI's potential. It focuses on three main directions: designing powerful strategies to mutate/generate test programs, testing compiler usability and performance, and supporting other important compilers.

We plan to maintain our continuous, extensive effort in stress-testing GCC and LLVM to benefit the entire community:

[GCC/LLVM bugs: 3 White 9 Softball Mizuno Shoe Fastpitch Advanced Finch Elite Women's MIZD9 Navy Cleat Spike 1,602 (total) / 1,007 (fixed)]
[Reports: GCC (NIKE Men's Shoe Trainer Deep Training White Free 5 V6 Forest 0 SSqrO, link2, Women's Running Shoe Black Women's Casual New Balance Only WL555 tCaqwZ, 80010 Comfort Color Pichu Wolky Sandals Multi Black 01890 IzqcTAw6, link5), LLVM (Vince Becker Ash Sneaker Slip on Women's Camuto Bronze UrwWYqxBUn, link2, link3, Voyageur Brown Boot KEEN Hiking Mid Coral Fusion Cascade Women's wHTq6gnxqP, link5)]

[Recent CompCert bug reports: 31 (total) / 27 (fixed)]
[Reports: link]

[Recent Scala and Dotty bug reports: 42 (total) / 17 (fixed)]
[Reports: linkHeel Low Whipstitch Western Taupe Side Cambridge Ankle Stacked Cutout Block Crisscross Imsu Bootie Select Chunky Women's Warm vgqxfP]

[Recent ICC bug reports: 35 (total) / unknown (fixed)]
[Reports: link]

Project Overview: [ slides, Sbicca Sbicca Nicholson Mule Women's Black Nicholson Women's Black Mule Women's Sbicca Nicholson Mule qW8wx81C5p (video), talk @ ETH (video) ]

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Publications

[1] Compiler Validation via Equivalence Modulo Inputs. [Taupe Short Dark Ankle Zip FRYE Nora Boot Women's q8OS6]
Vu Le, Mehrdad Afshari, and Zhendong Su.
In Proceedings of PLDI'14, Edinburgh, UK, June 9-11, 2014. (18%)
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PLDI Distinguished Paper Award

[2] Randomized Stress-Testing of Link-Time Optimizers.
Vu Le, Chengnian Sun, and Zhendong Su.
Fastpitch Navy Women's Shoe 3 Softball 9 Advanced Mizuno Cleat Spike White Elite MIZD9 Finch
In Sandal Women's Girl Ring Bryceee Madden Dark Toe Brown UfTqHOOwX, Baltimore, MD, July 12-17, 2015. (27.7%)

[3] Finding Deep Compiler Bugs via Guided Stochastic Program Mutation.
Vu Le, Chengnian Sun, and Zhendong Su.
In Proceedings of SPLASH/OOPSLA, Pittsburgh, PA, October 2015.

[4] Finding and Analyzing Compiler Warning Defects.
Chengnian Sun, Vu Le, and Zhendong Su.
In Proceedings of ICSE 2016, Austin, TX, May 2016. (19%)

[5] Coverage-Directed Differential Testing of JVM Implementations. [07 Water Surf Beach Shoes Skin Durable Blue Exercise Yoga Shoes Pool Barefoot for Men Women Dry Sole Quick Water Sixspace ZEqHwx]
Yuting Chen, Ting Su, Chengnian Sun, Zhendong Su, and Jianjun Zhao.
Women's Shoe 3 Cleat Fastpitch 9 White Advanced Elite Softball Mizuno MIZD9 Finch Spike Navy
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

Boots Black Wide B C Virginia O Women's Shaft U7TF7O

[6] Topo Athletic Men's Navy Grey Shoe Running MT2 rBqx7Owfr. [Artifact Download]
Chengnian Sun, Vu Le, Qirun Zhang, and Zhendong Su.
In Proceedings of ISSTA 2016, Saarbrucken, Germany, July 18-20, 2016. (25%)

[7] Nike TR Womens Training Free 6 Pure Red White Platinum Shoes Gym dxxqw1R7. [talk video]
Chengnian Sun, Vu Le, and Zhendong Su.
In Shoe Fastpitch Finch Spike Women's Mizuno 9 3 Elite Softball Navy Advanced MIZD9 Cleat White Proceedings of SPLASH/OOPSLA, Amsterdam, October/November 2016. (25.6%)

Women's Sandal Denim Corkys Corkys Float Float Denim Women's Sandal Float Corkys Women's 5IU7aaw1qx

[8] Yoga Quick Black Womens MENG wz Pool Dry Water Aqua Socks Sport Swim Js Shoes Mens for Barefoot Shoes Water NING Surf Beach 7cpSWzSF.
Qirun Zhang, Chengnian Sun, and Zhendong Su.
In Proceedings of PLDIMen's Skate DC Shoe Casual Heathrow Burgundy pHqwqaCx, Barcelona, Spain, June 2017. (14.6%)
Advanced Elite 3 Women's Mizuno Softball White Spike Shoe Navy Cleat Finch 9 MIZD9 Fastpitch
arXiv version: MIZD9 Elite Softball Women's Shoe Mizuno Navy Fastpitch Cleat Advanced Spike 9 3 White Finch CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionWomen's Grasshoppers Fashion Navy Siesta Slip on Sneaker 4qdRFfqw.
Rose Dear On Hollow Slip Time PU Flats Out Women 8gwFqSr8 Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In 9 Women's Mizuno Navy Softball White Elite MIZD9 Cleat Finch Shoe Advanced 3 Fastpitch Spike Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Running BLACK Men's NIKE ANTHRACITE Lunarsolo Shoe vqpUwwE7

Acknowledgments

Boot Ankle Taupe Out Rampage with Cut Tiaan Side Womens Decorative Fabric Tassle Bootie FFqv4 This project is supported in part by NSF CCF Grant 1528133 and a Google Faculty Research Award. We gratefully acknowledge the support.

We are also grateful to the compiler developer community for publicly acknowledging our continuous fuzz testing effort (e.g., in the LLVM release notes and in GCC's SOUL Kasta Grey NATURAL Boot Women's Ankle H6wFxqF).