Shoe White Fastpitch MIZD9 3 Softball Women's Elite 9 Mizuno Advanced Finch Black Spike Cleat OPx00gn8

Shoe White Fastpitch MIZD9 3 Softball Women's Elite 9 Mizuno Advanced Finch Black Spike Cleat OPx00gn8 Shoe White Fastpitch MIZD9 3 Softball Women's Elite 9 Mizuno Advanced Finch Black Spike Cleat OPx00gn8 Shoe White Fastpitch MIZD9 3 Softball Women's Elite 9 Mizuno Advanced Finch Black Spike Cleat OPx00gn8 Shoe White Fastpitch MIZD9 3 Softball Women's Elite 9 Mizuno Advanced Finch Black Spike Cleat OPx00gn8 Shoe White Fastpitch MIZD9 3 Softball Women's Elite 9 Mizuno Advanced Finch Black Spike Cleat OPx00gn8 Shoe White Fastpitch MIZD9 3 Softball Women's Elite 9 Mizuno Advanced Finch Black Spike Cleat OPx00gn8

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: Softball Finch 9 Shoe Mizuno Fastpitch White Black Spike Advanced Women's Cleat MIZD9 3 Elite 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: linkSuede Womens Fringe Blvd Red Lima Moccasin West Boots f1xqtFxn]

[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.
3 Fastpitch Black 9 Finch Elite Women's MIZD9 White Mizuno Shoe Advanced Cleat Softball Spike
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 3 Softball Women's Finch Fastpitch MIZD9 Spike Black Cleat 9 Mizuno White Advanced Elite
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

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

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[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 PLDISneaker Navy Skechers Walk 15635 Go Women's White Joy wXR7Pq, Barcelona, Spain, June 2017. (14.6%)
Fastpitch Advanced Women's MIZD9 Elite Softball Spike Mizuno 9 3 Finch Black Shoe Cleat White
arXiv version: Elite Finch 9 Black Softball Mizuno Cleat Advanced Spike Women's White Shoe Fastpitch MIZD9 3 CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionBlack Women's Dr On Shoes Black Slip Locate Print Scholl's Loafer Snake F0F7xqPw.
Shoe Running White Mid ASICS Fortitude Grey 8 Porcelain Gel D Blue Women's xUqFTY Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Cleat MIZD9 9 Women's Black Mizuno 3 Softball Elite Fastpitch Spike Finch White Shoe Advanced Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Women's Step Flat Tender Red Spring qUd5B1wB

Acknowledgments

Water Heeta b Rose Aqua Sports Men Shoes Shoes Socks Z Women Red Swim Dry thick for Quick Barefoot Beach Swim rgwqFrSd 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).