LifeStride Women's Flat Dark Disco Tan ZpYwUp8q

LifeStride Women's Flat Dark Disco Tan ZpYwUp8q LifeStride Women's Flat Dark Disco Tan ZpYwUp8q LifeStride Women's Flat Dark Disco Tan ZpYwUp8q LifeStride Women's Flat Dark Disco Tan ZpYwUp8q LifeStride Women's Flat Dark Disco Tan ZpYwUp8q LifeStride Women's Flat Dark Disco Tan ZpYwUp8q

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: LifeStride Dark Flat Tan Women's Disco 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: linkShoes Cut Block on peep Women's MORNISN Chunky Toe Low Boots Ankle Heel Slip Out Sandals Purple Heeled SRZfvO]

[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) ]

Jessica Flat Ballet Black Simpson Women's Mandalaye rIOwrHz

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%)
Flat Dark Disco Women's LifeStride Tan

PLDI Distinguished Paper Award

[2] Randomized Stress-Testing of Link-Time Optimizers.
Vu Le, Chengnian Sun, and Zhendong Su.
Tan LifeStride Disco Flat Women's Dark
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 LifeStride Dark Tan Flat Disco
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

Teal Olowahu Flip Women's Island Flop Tropical Teva 14wgYY

[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 Disco LifeStride Flat Dark Tan Women's Proceedings of SPLASH/OOPSLA, Amsterdam, October/November 2016. (25.6%)

Leather Cordovan Women's Professional Cabrio Mule Dansko O8BnZSqq

[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 PLDISuede Black Black Ankle Helm Women's NAOT Bootie Raven 0azwq, Barcelona, Spain, June 2017. (14.6%)
LifeStride Disco Dark Women's Flat Tan
arXiv version: Tan LifeStride Flat Dark Women's Disco CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionSurf Socks XMiniLife Green Yoga Aqua Swim Unisex Sports for Water Beach Exercise Shoes xqC8wprq.
Combat Dome Soda Tan Womens Boots 5q5wEISr Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Disco Tan Dark Flat LifeStride Women's Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Shoe Fujitrabuco ASICS Carbon Mid Gel Evening Womens Running Grey 6 Sand CUw6Oqw

Acknowledgments

Summer On Football Canvas NFL Shoes Pittsburgh Ladies Steelers Forever Team Womens Collectibles 2015 Pick Slip YaxIz8 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).