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GNU Compiler: The State Of C++20 Features In GCC's libstdc++ and GCC 9

Submitted by Roy Schestowitz on Saturday 12th of January 2019 03:18:53 PM
  • The State Of C++20 Features In GCC's libstdc++

    With GCC 9 being released in just a short time and being now onto the final stage of development, besides fixing regressions the developers are also getting the documentation in order.

    As part of getting the documentation squared away for the upcoming GCC 9.1 release, committed today was the documentation showing the status of the C++20 support within their libstdc++ C++ standard library.

    Besides the GNU Compiler Collection itself moving along with its preliminary C++20 features, the libstdc++ library has also been working to stay in-step as new functionality gets worked out for this next planned update to the C++ programming language.

  • GCC 9 Compiler Tuning Benchmarks At Various Optimization Levels, Vectorize Options

    With the mention earlier this week of GCC potentially enabling the vectorize options at the -O2 optimization level, I carried out some fresh GCC 9 development benchmarks at various optimization levels for reference.

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Radeon GCC Compute Back-End Approved For Merging

Submitted by Roy Schestowitz on Saturday 12th of January 2019 06:58:21 PM.
  • Radeon GCC Compute Back-End Approved For Merging In The Upcoming GCC9 Compiler

    As a follow-up to the story a few days ago about interest in getting the Radeon GCC compiler back-end merged for this year's GNU Compiler Collection 9 (GCC9) release, it's been approved!

    This is the back-end for the GCC computer targeting recent generations of AMD's Radeon GCN architecture. Ultimately it's for allowing OpenMP and OpenACC code, among other possible use-cases, to be offloaded to Radeon GPUs for compute. GCC has long had the NVIDIA NVPTX back-end as well as support for Xeon Phi and friends, but not this proper AMD GCN back-end that has been in development for a while. Granted, there is the AMDGPU back-end within LLVM that is used by the open-source OpenGL and Vulkan drivers, among other use-cases.

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