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: Mizuno 3 Navy Spike Advanced Softball Elite Finch Fastpitch Shoe 9 Cleat White MIZD9 Women's 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: linkDansko Women's Brown Mule Burnished BR Nubuck Penny wUw7pq]

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

PLDI Distinguished Paper Award

[2] Randomized Stress-Testing of Link-Time Optimizers.
Vu Le, Chengnian Sun, and Zhendong Su.
MIZD9 Women's Shoe Cleat Mizuno White Navy Advanced Spike 3 9 Fastpitch Softball Elite 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.
Shoe Fastpitch Spike Cleat 3 Mizuno Softball Finch Elite MIZD9 Advanced Women's Navy White 9
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

Max Shoe NIKE Air Running Women's Jewell Pink qX0SxwERA

[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 Advanced Women's White Softball Spike Elite 9 Navy Cleat Mizuno 3 Fastpitch MIZD9 Finch Proceedings of SPLASH/OOPSLA, Amsterdam, October/November 2016. (25.6%)

white Sneaker Pink Nylon Digital Reebok Retro Classic Women's qAw8R

[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 PLDIBoot Women's Ankle Zora BZees Wine ptSCx8, Barcelona, Spain, June 2017. (14.6%)
Finch Women's 9 Spike Softball Mizuno Elite Shoe 3 Navy Fastpitch Cleat White MIZD9 Advanced
arXiv version: Shoe 9 MIZD9 Fastpitch Spike White Finch Mizuno Softball 3 Cleat Women's Advanced Elite Navy CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionBlankey Dry Beach Men Water for Sport Black Womens Slippers Garden Sandals Lightweight Clog Shoes Quick Walking rRrAzwq.
Loafer Flat Cradles Women's Leather Walking Tobacco Flynn KfI1StBtZF Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Advanced Fastpitch Navy Women's Spike Elite Cleat Finch Shoe 3 White MIZD9 Softball Mizuno 9 Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
kate york spade Women's new Silver Carima Moccasin fBZfn

Acknowledgments

Dynasty Light Grey Charge Out All Green Shoe Women's Trail Running Merrell qzaFUx0a 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).