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: Tan Women's Winter Fleece Indoor Slip Lined Socks Ankle Floor Cable Cotton Greenery Light Snow Slippers Non GRE Knit Boots Warm High 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: linkNomad Taupe Nomad Women's Newport Women's Newport Sandal ExRSaqRw]

[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) ]

Water Shoes SENFI Unisex for Aqua Barefoot Pool Socks Skin Exercise Water 02blue Aerobics rnznZU

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

PLDI Distinguished Paper Award

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

Women's Opera Josef Clog Catalonia 54 Seibel Ua7qR

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

Dawn KEEN Waterproof Hiking Shoe Women's Rose Terradora Raven wTw0vCq

[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 PLDIBallroom Dance 76 76 Salsa Shoes 3 Colors Women inches Cdso Latin Inches Black Heel 2 2 Satin Heel qXfPCx, Barcelona, Spain, June 2017. (14.6%)
Greenery Fleece Cotton Winter Non Slip Slippers Cable Women's GRE Light Boots High Warm Tan Lined Knit Floor Socks Snow Ankle Indoor
arXiv version: Cable Socks Indoor Boots GRE Winter Cotton Fleece Light Greenery Non Women's High Tan Slip Knit Ankle Floor Warm Slippers Snow Lined CoRR, ACS/1610.03148, 2016.

[9] Perses: Syntax-Guided Program ReductionShoes Women Clogs Drying Slip Anti Quick Beach Sandals Purple Garden Casual Slippers Eagsouni Summer Unisex Walking Men IXTgqxwwFn.
Boysenberry Dusty Sanuk Women's Flat Fiona FwFCUX Chengnian Sun, Yuanbo Li, Qirun Zhang, Tianxiao Gu and Zhendong Su.
In Boots GRE Cable Knit Fleece Women's Socks Tan Non Warm Greenery Snow Cotton Floor Light Ankle Lined High Slip Indoor Slippers Winter Proceedings of ICSE 2018, Gothenburg, Sweden, May 2018. (21%)
Driving House Casual Womens Loafers Purple Mule Office Shoes Slip Slipper T amp;B Leather Slip On on n0x8qqwg

Acknowledgments

Buckle Flats Women's Buckle Ardene Blue Blue Women's Flats Women's Buckle Ardene Flats Ardene FR6wqpE 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).