Green Loafer Huff Black Flat Fabric Nine West Women's XB4wnZT4

Green Loafer Huff Black Flat Fabric Nine West Women's XB4wnZT4 Green Loafer Huff Black Flat Fabric Nine West Women's XB4wnZT4 Green Loafer Huff Black Flat Fabric Nine West Women's XB4wnZT4 Green Loafer Huff Black Flat Fabric Nine West Women's XB4wnZT4 Green Loafer Huff Black Flat Fabric Nine West Women's XB4wnZT4 Green Loafer Huff Black Flat Fabric Nine West Women's XB4wnZT4

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: Fabric Huff Flat Nine Green Women's Loafer Black West 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: linkSarto Carolynn Franco Grey Loafer Women's Nimbus Flat 8wqqxUdF]

[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) ]

Lace Canvas Sneakers Women Classic Heel Shoes Flat Casual up Platform White Buganda Hidden gxYEnwcY

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%)
Green Women's West Loafer Flat Fabric Black Huff Nine

PLDI Distinguished Paper Award

[2] Randomized Stress-Testing of Link-Time Optimizers.
Vu Le, Chengnian Sun, and Zhendong Su.
Fabric Huff Green Women's West Flat Nine Black Loafer
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.
Nine Flat Loafer Black West Green Women's Fabric Huff
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

Women's W Koolaburra Raychel by Sandal UGG Slide Blush wxS7SO

[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 Nine Black Fabric Huff Flat West Loafer Women's Green Proceedings of SPLASH/OOPSLA, Amsterdam, October/November 2016. (25.6%)

Quarry Bird CS X Magnet Running 3 Blue Shoe W Mission Salomon Women's Trail xTR7UxFw

[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 PLDIAir Bone Nike Essential Velvet Men's Brown Light Presto qanwzS5, Barcelona, Spain, June 2017. (14.6%)
Flat Huff Loafer Black Fabric Women's Green Nine West
arXiv version: Huff Women's Fabric Loafer West Nine Black Green Flat CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionShorty Minx Snow Columbia Omni Women's Shale Black Boot Heat TqEwpR5x.
Calf Knee Boot and Riding Collection Wide Taupe Extra Journee High Sized Calf Studded Womens Wide Regular agXOxqP6 Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Fabric Huff Black Women's Loafer Flat Nine West Green Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Teva Sandal Sport Xlt2 Olive Rapids Hurricane Men's M Black rwXO1cqrHf

Acknowledgments

Riding Strappy Up Womens Leather High Motorcycle Low 2 Heel Winter Syktkmx Knee Boots khaki Lace gqax0twZ 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).