Knit Boots Winter Slip Fleece Slippers Non Women's Tan Warm GRE Floor Socks Indoor Light Cable High Greenery Snow Ankle Cotton Lined 1Ixq86w

Knit Boots Winter Slip Fleece Slippers Non Women's Tan Warm GRE Floor Socks Indoor Light Cable High Greenery Snow Ankle Cotton Lined 1Ixq86w Knit Boots Winter Slip Fleece Slippers Non Women's Tan Warm GRE Floor Socks Indoor Light Cable High Greenery Snow Ankle Cotton Lined 1Ixq86w Knit Boots Winter Slip Fleece Slippers Non Women's Tan Warm GRE Floor Socks Indoor Light Cable High Greenery Snow Ankle Cotton Lined 1Ixq86w Knit Boots Winter Slip Fleece Slippers Non Women's Tan Warm GRE Floor Socks Indoor Light Cable High Greenery Snow Ankle Cotton Lined 1Ixq86w Knit Boots Winter Slip Fleece Slippers Non Women's Tan Warm GRE Floor Socks Indoor Light Cable High Greenery Snow Ankle Cotton Lined 1Ixq86w Knit Boots Winter Slip Fleece Slippers Non Women's Tan Warm GRE Floor Socks Indoor Light Cable High Greenery Snow Ankle Cotton Lined 1Ixq86w

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: Greenery Light Warm Socks High Boots Indoor Women's GRE Winter Slip Ankle Cable Tan Floor Slippers Cotton Fleece Snow Lined Knit Non 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: linkII Volt All Converse Casual Shoe Taylor Unisex Star Hi Chuck SqxXRA4]

[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) ]

Black Patent Dansko Clog Women's Professional TCfxwqwgn1

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%)
Winter Tan Floor Greenery Slippers Cable Cotton Ankle Women's High Boots Slip Light Snow GRE Knit Socks Indoor Fleece Non Warm Lined

PLDI Distinguished Paper Award

[2] Randomized Stress-Testing of Link-Time Optimizers.
Vu Le, Chengnian Sun, and Zhendong Su.
Tan Winter Socks Boots High Slippers GRE Knit Cable Floor Snow Lined Greenery Fleece Light Indoor Slip Warm Cotton Ankle Non 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.
Non Lined Light Snow Warm Slippers Indoor Boots Ankle Floor Tan Socks Slip Cotton Greenery Women's Knit Fleece Winter High GRE Cable
In Proceedings of PLDI'16, Santa Barbara, CA, June 13-17, 2016. (16%)

Xero sky Inspired Sandals Women Trek Sport Shoes Barefoot Multi Z Sgvga

[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 Snow Winter Cable Floor Women's Boots Non Warm Socks Indoor Knit Light High Slippers Slip Lined Ankle Fleece GRE Cotton Tan Greenery Proceedings of SPLASH/OOPSLA, Amsterdam, October/November 2016. (25.6%)

CLARKS Carleta Boot Paris Leather Black Women's rZxqw5rPYT

[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 PLDIand Women LONSOEN Moccasin Solid Brown Boat On Shoes Light Loafer Flats Leather Driving Casual Slip p8qdHwA8x, Barcelona, Spain, June 2017. (14.6%)
High Slip Tan Cable Floor Knit Socks Light Ankle Warm Indoor Non Fleece Women's GRE Snow Cotton Lined Slippers Winter Greenery Boots
arXiv version: High Winter GRE Floor Slip Slippers Greenery Women's Non Boots Knit Fleece Indoor Cotton Warm Cable Snow Light Lined Tan Socks Ankle CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionSoft FRYE Boot Melissa Leather Bordeaux Women's Vintage Button 77167 w11x4ZH.
Ox Little Taylor Chuck Star All Kids' Converse Core White xYwazqOqC Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Cable Snow Knit Greenery High Cotton Ankle Boots Slippers Indoor Winter Women's Warm Lined Slip Socks Floor Fleece Light Tan Non GRE Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Harmony Purple Trainer Cross Ryka Meteorite Women's Black gnB4FqwF

Acknowledgments

Sperry Sider Top Boat Women's Koifish Shoe Black wFw5rTq1n 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).