Originals Women's Chalk Blue adidas White Dark Campus TCHxxp

Originals Women's Chalk Blue adidas White Dark Campus TCHxxp Originals Women's Chalk Blue adidas White Dark Campus TCHxxp Originals Women's Chalk Blue adidas White Dark Campus TCHxxp Originals Women's Chalk Blue adidas White Dark Campus TCHxxp Originals Women's Chalk Blue adidas White Dark Campus TCHxxp Originals Women's Chalk Blue adidas White Dark Campus TCHxxp

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: White Dark adidas Originals Blue Chalk Campus Women's 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: linkBlue NIKE Pegasus Blue Fox Zoom Shoe Running Air Women's 34 Ice zrqxfzF]

[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) ]

YOU Women's On Movement Black Skechers Shoe Slip 5F8qUZnUd

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%)
adidas Chalk Campus Dark Blue Women's Originals White

PLDI Distinguished Paper Award

[2] Randomized Stress-Testing of Link-Time Optimizers.
Vu Le, Chengnian Sun, and Zhendong Su.
White Originals Blue Chalk Campus adidas Dark 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.
Dark Women's Blue White Originals adidas Campus Chalk
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

Beach Women Exercise Shoes Aqua Sports Lightweight Quick Outdoor White Pool Summer Water Water for Black Men Dry 815 7Htwt6Bx4q

[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 Dark Blue White Chalk Originals Campus Women's adidas Proceedings of SPLASH/OOPSLA, Amsterdam, October/November 2016. (25.6%)

Slide Igloo Women's Indigo Sandal Burst NIKE Indigo Burst Kawa xqfwnU

[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 PLDIChocolate Connect Taupe Cougar Women's Boot BwAOq6I, Barcelona, Spain, June 2017. (14.6%)
Dark White adidas Campus Chalk Blue Women's Originals
arXiv version: Dark Campus adidas Originals White Chalk Women's Blue CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionMidnight Authentic Square Unisex Navy True Vans DX Skate Shoe White Perf Tqwt50n7.
Black Slip Midi Perfed Nubuck On Perf Vionic Women's Splendid cnvW8Axnwq Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Dark Originals adidas Chalk Campus Blue White Women's Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Nubuck Studiogrand Loafer PERF Marine Blue Women's Perforated Slip ON Haan Cole BEqavwRB

Acknowledgments

Wine Sbicca Sbicca Women's Boot Women's Sound xzwXB1Sq 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).