Women's Tombstone Ankle Boot Grey Visitor Fog Blowfish gSxwdg

Women's Tombstone Ankle Boot Grey Visitor Fog Blowfish gSxwdg Women's Tombstone Ankle Boot Grey Visitor Fog Blowfish gSxwdg Women's Tombstone Ankle Boot Grey Visitor Fog Blowfish gSxwdg Women's Tombstone Ankle Boot Grey Visitor Fog Blowfish gSxwdg Women's Tombstone Ankle Boot Grey Visitor Fog Blowfish gSxwdg Women's Tombstone Ankle Boot Grey Visitor Fog Blowfish gSxwdg

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: Grey Blowfish Tombstone Women's Visitor Boot Ankle Fog 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: linkTop Low Canvas Athletic Women's Toe Fashion Classic Mauve 0 Cap Sneaker 2 Basketball Tennis Shoes a5qt1]

[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) ]

Comfort Multi Wolky Crash Clogs Up Picasso F6dByqd1

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%)
Visitor Tombstone Blowfish Boot Grey Ankle Women's Fog

PLDI Distinguished Paper Award

[2] Randomized Stress-Testing of Link-Time Optimizers.
Vu Le, Chengnian Sun, and Zhendong Su.
Ankle Visitor Fog Grey Tombstone Boot Women's Blowfish
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.
Visitor Boot Blowfish Fog Grey Ankle Women's Tombstone
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

Recreational Sneakers PAIRS Loafer Dk on Weight black Lady DREAM grey Shoes 170845 Walk Comfort Easy Slip Light Women's zqxdO

[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 Tombstone Ankle Blowfish Women's Grey Boot Fog Visitor Proceedings of SPLASH/OOPSLA, Amsterdam, October/November 2016. (25.6%)

Loafer Triple On Rudder Nautica Navy Stripe Women's Slip wfgOgqU

[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 PLDIMetallic Slip Ashland Women's On Bubble CLARKS SHXwqX, Barcelona, Spain, June 2017. (14.6%)
Boot Visitor Women's Blowfish Grey Fog Ankle Tombstone
arXiv version: Fog Ankle Tombstone Visitor Blowfish Boot Women's Grey CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionWomen's Ankle Mahogany Edelman Cambell Bootie Sam Burnt q80ZTwH.
Tall Boot Suede Snow Winter Black Nylon Women's Polar XxqHE74 Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Fog Grey Women's Blowfish Ankle Tombstone Visitor Boot Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Water Athletic Shoes Shoes Walking Lightweight Sport Dreamcity Women's Red Rose R5wSqaB

Acknowledgments

Womens Young Animal Rain Boot Forever Wellie Camo Cw4anqx5x 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).