LLVM / Clang 6.0 Should Be Released Soon With Its Many New Features
Written by Michael Larabel in LLVM on 25 February 2018 at 06:06 AM EST. 10 Comments
LLVM 6 is running a few days behind scheduled for its release along with Clang 6 for the C/C++ compiler, but this latest big update to this open-source compiler stack should still be on the ways in the days ahead.

LLVM 6.0 and Clang 6.0 are bringing many improvements that have come about over the past six months. Some of the highlights of this upcoming liberally-licensed compiler stack include:

- Initial Spectre mitigation support with Retpolines.

- Initial sanitizer support on NetBSD x86/x86_64.

- Many updates to the MIPS and Hexagon targets.

- Support for 128-bit atomic operations with the System Z target.

- Intrinsics for a number of new Intel extensions like GFNI, AES, and various AVX-512 additions.

- Initial Intel Icelake CPU support.

- Instruction scheduling updates for Sandy Bridge / Ivy Bridge / Haswell / Broadwell / Skylake.

- The AMD znver1 scheduler model is now considered complete.

- An improved scheduler model for AMD Jaguar APUs.

- Improved x86/x86_64 code generation in various conditions.

- A number of new warning options for Clang.

- Clang is now compatible with Microsoft Visual Studio 2015 and 2017 C++ standard library headers.

- A new "--autocomplete" option for Clang to obtain a list of possible flags and arguments.

- -std=17 / -std=gnu17 is now support for initial C17 support for Clang that is currently being firmed up.

- Support for configuration files with Clang.

- Clang on Windows has initial support for Windows on 64-bit ARM.

- Clang now defaults to GNU++14/C++14 rather than the GNU++98 standard.

- OpenCL Clang improvements of sub-group built-ins to enqueue kernel support, OpenCL 2 atomic improvements, and more.

- Various OpenMP improvements for Clang.

And much more. I'll have more LLVM/Clang 6.0 benchmarks on Phoronix in the days ahead. If you have any special test requests, be sure to let us know via the forums.

About The Author
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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 10,000 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 or contacted via MichaelLarabel.com.

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