C++ Team Blog

C++ tutorials, C and C++ news, and information about Visual Studio, Visual Studio Code, and Vcpkg from the Microsoft C++ team.

March 2019 - C++ Team Blog

SIMD Extension to C++ OpenMP in Visual Studio

March 27, 2019 Mar 27, 2019 03/27/19
Hongtao Yu
In the era of ubiquitous AI applications there is an emerging demand of the compiler accelerating computation-intensive machine-learning code for existing hardware. Such code usually does mathematical computation like matrix transformation and manipulation and it is usually in the form of loops. The SIMD extension of OpenMP provides users an ...

Linker Throughput Improvement in Visual Studio 2019

March 20, 2019 Mar 20, 2019 03/20/19
YongKang Zhu
In Visual Studio 2019 Preview 2 we made the compiler back-end to prune away debug information that is unrelated to code or data emitted into binary and changed certain hash implementations in the PDB engine, to improve linker throughput, which resulted in more than 2x reduction on link time for some large AAA game title. Debug Info Pruning...

Making C++ Exception Handling Smaller On x64

March 7, 2019 Mar 7, 2019 03/7/19
Modi Mo
Visual Studio 2019 Preview 3 introduces a new feature to reduce the binary size of C++ exception handling (try/catch and automatic destructors) on x64. Dubbed FH4 (for __CxxFrameHandler4, see below), I developed new formatting and processing for data used for C++ exception handling that is ~60% smaller than the existing implementation ...