LLVM Begins Process For Allowing C++17 In Codebase

Written by Michael Larabel in LLVM on 4 April 2022 at 05:38 AM EDT. 18 Comments
After LLVM moved from C++11 to allowing C++14 code within the LLVM code-base itself in 2019, LLVM developers are now preparing the transition to C++17.

C++17 support by the prominent compilers has been around long enough and in a mature state that LLVM developers have started the process to moving from C++14 to C++17 for use by the LLVM code-base itself. Moving to C++17 for the LLVM code-base itself raises the compiler requirements for build LLVM to Clang 5.0, Apple Clang 9.3, GCC 7.1, and Microsoft Visual Studio 2019 16.7.

The current plan is to introduce a soft error around the new compiler requirements soon into the main code-base for LLVM 15, make the compiler versions a hard requirement or error after LLVM 15 is branched, and then with LLVM 16.x begin allowing C++17 code to be used in the development of LLVM.

Generally LLVM aims to ensure that LLVM/Clang and GCC compilers from at least the past three years can continue to build upstream LLVM, which is where the delay comes about in adopting new C++ standards for LLVM developers to enjoy. The phase about first introducing new compiler requirements as a soft error for one release comes from their standard procedures for moving to new C++ requirements.

See more details on the LLVM Discourse for these fresh plans on moving to C++17.
Related News
About The Author
Michael Larabel

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

Popular News This Week