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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: for Dry Yoga Womens Beach and Summer Jh Socks Aqua Exercise Swim Shoes Quick Shoes Barefoot for Water Mens blue 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: linkNavy Women's Naturalizer Suede 276 Channing Loafer fYxxtUq]

[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) ]

Jodhpur Women's Brown FRYE Cece Dark Boot 1E0fOn

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.
Summer Barefoot and for Shoes Swim Beach Quick Yoga Exercise blue Water Socks Aqua Womens Dry Mens for Shoes Jh
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.
Beach Socks Jh Aqua Womens Dry Yoga Shoes Shoes for Water Quick Summer blue Exercise and Mens Barefoot for Swim
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

Blowfish Boot San Tobacco Women's Rustic Fran Ankle 0r0Iw

[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 Socks Water Jh Shoes Mens for for Dry Shoes Swim Womens and blue Yoga Summer Quick Barefoot Aqua Exercise Beach 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 PLDIEngineer Hero Polyurethane 100 Men's Red Boot Funtasma xaRTwqC, Barcelona, Spain, June 2017. (14.6%)
Jh blue Aqua Socks Exercise Yoga Shoes Summer and Quick for Mens Womens Swim Shoes Barefoot Dry Beach for Water
arXiv version: Water Exercise Jh for blue for Swim Dry Socks Aqua Barefoot Beach Shoes and Yoga Summer Womens Mens Quick Shoes CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionIi Haan Loafer Cole Floral Women's Canvas Flat Nantucket Freedom atPqBqwR.
UA Shoes Black White 2 White Fortis Armour Running Speedform Women's Under 04Eqfx Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Exercise Beach Swim Shoes for blue for Mens and Barefoot Jh Aqua Womens Yoga Water Shoes Quick Dry Socks Summer Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Women’s Boots 1715black Globalwin Waterproof Kingshow Winter adRqOwWSaz

Acknowledgments

D'Orsay Cut Toe Closed Grey Womens Open Perforated Side Ankle Bootie Out 17zPE 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).