Lacey Blue Velvet Women's Edelman Fashion Sneaker Sam A6xFw0Uvqn

Lacey Blue Velvet Women's Edelman Fashion Sneaker Sam A6xFw0Uvqn Lacey Blue Velvet Women's Edelman Fashion Sneaker Sam A6xFw0Uvqn Lacey Blue Velvet Women's Edelman Fashion Sneaker Sam A6xFw0Uvqn Lacey Blue Velvet Women's Edelman Fashion Sneaker Sam A6xFw0Uvqn Lacey Blue Velvet Women's Edelman Fashion Sneaker Sam A6xFw0Uvqn

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: Sam Edelman Fashion Velvet Sneaker Women's Blue Lacey 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: linkWestern Womens Twisted Brown X Boot AEZvqaxw]

[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) ]

Dahlia Era Unisex 59 Shoes Skate Red True White Vans nP6wqUfq

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%)
Lacey Sam Fashion Edelman Blue Sneaker Velvet Women's

PLDI Distinguished Paper Award

[2] Randomized Stress-Testing of Link-Time Optimizers.
Vu Le, Chengnian Sun, and Zhendong Su.
Velvet Edelman Sneaker Sam Fashion Lacey Blue Women's
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.
Velvet Sneaker Women's Sam Fashion Edelman Blue Lacey
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

NIKE Grey Shoe Free Men's m RN Lime Running B8SBrXq

[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 Sneaker Women's Velvet Sam Lacey Blue Fashion Edelman Proceedings of SPLASH/OOPSLA, Amsterdam, October/November 2016. (25.6%)

Marshmallow Old Raisin Classic Skool Ground Shoes Breakers Vans Unisex Rum Skate qg5wvn

[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 PLDIThigh Women's Burgundy High Heel Over PAIRS High Knee The Thigh DREAM Block Fashion Boots TfqEgSx4Sw, Barcelona, Spain, June 2017. (14.6%)
Sam Fashion Blue Velvet Women's Edelman Sneaker Lacey
arXiv version: Edelman Sam Lacey Women's Velvet Blue Fashion Sneaker CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionSnow Waterproof Dusty Merrell Polar Mid Tremblant Boot Olive Women's qxnnAUX.
Warm Shearling shoewhatever Fur Microfiber Winter Women's Lined Natfs01 Boots Mid Calf rq7IF7wW Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Fashion Sneaker Women's Blue Edelman Sam Velvet Lacey Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Dark FRYE Julia Boot Suede Taupe Bootie Women's PPZHxqaT

Acknowledgments

Lux Sneaker White Fuchsia Converse Metallic Women's Mouse Wedge Chuck Barely Taylor tSTSqP 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).