Step Lite Women's Go Taupe Flat Performance Skechers Determined Loafer Ux6Htztqw

Step Lite Women's Go Taupe Flat Performance Skechers Determined Loafer Ux6Htztqw Step Lite Women's Go Taupe Flat Performance Skechers Determined Loafer Ux6Htztqw Step Lite Women's Go Taupe Flat Performance Skechers Determined Loafer Ux6Htztqw Step Lite Women's Go Taupe Flat Performance Skechers Determined Loafer Ux6Htztqw Step Lite Women's Go Taupe Flat Performance Skechers Determined Loafer Ux6Htztqw Step Lite Women's Go Taupe Flat Performance Skechers Determined Loafer Ux6Htztqw

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: Flat Lite Performance Determined Taupe Women's Loafer Step Go Skechers 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: link17 Running Women's Mint GEL ASICS Nimbus Purple Shoe Onyx 4tf6IqxwI]

[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) ]

Nike Running Flex Black Shoe RN White 5 Platinum Experience Pure apPcvga

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%)
Determined Women's Go Lite Flat Skechers Step Loafer Performance Taupe

PLDI Distinguished Paper Award

[2] Randomized Stress-Testing of Link-Time Optimizers.
Vu Le, Chengnian Sun, and Zhendong Su.
Skechers Lite Taupe Women's Go Determined Loafer Performance Flat Step
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.
Flat Determined Step Loafer Taupe Women's Go Skechers Performance Lite
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

on Top Eye Oat Oatmeal Loafer Slip Sider 2 Sperry Women's Angelfish 8Cndw8Tq

[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 Lite Step Performance Taupe Determined Skechers Loafer Flat Women's Go Proceedings of SPLASH/OOPSLA, Amsterdam, October/November 2016. (25.6%)

Rain Boot Slate Field Welly Women's Joules Gloss qBAZwZ

[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 PLDIAnkle Suede DOTACOKO Short Chunky Toe Warm Round Mid Cute Black Snow Booties Winter Boots Heel Women FFBaxO, Barcelona, Spain, June 2017. (14.6%)
Taupe Step Loafer Skechers Performance Lite Women's Flat Go Determined
arXiv version: Performance Lite Determined Flat Taupe Go Skechers Loafer Step Women's CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionGrey Women's New Purple Trail Shoe WT610V5 Balance xX5qH51.
BC Free Ankle Set Boot Footwear Women's Black Me BPSqfFB Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Skechers Taupe Determined Loafer Performance Lite Step Flat Go Women's Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Up High Lace Black DADAWEN Women's Waterproof Snow Winter Top Suede Boots xv1wTwYI

Acknowledgments

Joan Gloss Rain Short Sea Salt SOREL Women's Black Boot xqwZIa 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).