Silent CookiePLMonster
CookiePLMonster
/ repro.cpp
Last active
September 16, 2020 13:23
— forked from riverar/repro.cpp
VS optimizer bug sample
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <iostream> | |
| #include <cmath> | |
| // Sample of an optimizer bug in Visual Studio 2003 - 2019 (or more) | |
| // | |
| // Compiling this program in Release (/O1, /O2 or /Ox and LTCG) in both x86 and x64 | |
| // configurations produces a different output from unoptimized (Debug) configurations. | |
| // | |
| // Expected output: 709 | |
| // Produced output: 31 |