1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Apple, LLVM Developers Figure Out Their 64-Bit ARM Approach

Compiler

Published on 14 April 2014 09:33 PM EDT
Written by Michael Larabel in Compiler
2 Comments

Two weeks ago Apple open-sourced their 64-bit ARM back-end to LLVM. Following last week's EuroLLVM meeting, they have decided that the community's existing open-source 64-bit ARM back-end will likely be merged into Apple's now-public back-end.

At the "EuroLLVM" meeting last week in Edinburgh, Scotland, developers met to figure out the approach of ARM 64-bit support within LLVM/Clang now that Apple has open-sourced their code-base while various other organizations and community developers have focused on their own 64-bit ARM back-end. Both sides have agreed that the code-bases are to be merged, but the main plan was figuring out the most reasonable approach for combining the two code-bases.

Last week's meeting reaffirmed that the ARM64 back-end is the merge target. The "ARM64" back-end is Apple's back-end while the "AArch64" back-end is the existing 64-bit ARM code. Developers will be working to merge the extra functionality of the existing back-end into the newly open-sourced back-end as soon as possible to avoid code fragmentation and problems. This merging of the two 64-bit ARM back-ends might not happen before the LLVM 3.5 release this summer, but when it does the ARM64 (Apple) back-end will be renamed to AArch64 for ARM's correct naming scheme.

When the two code-bases are complete, no significant regressions can be found from code correctness to features to stability and performance. For those wishing to learn more about the ongoing 64-bit ARM LLVM work can be discovered via this mailing list thread.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. The MSI X99S SLI PLUS Is Working & Running Well On Linux
  2. NVIDIA GeForce GTX 980: The Best GPU For Linux Gamers
  3. ROCCAT LUA: A Linux-Friendly Gaming Mouse
  4. Cheetah Mounts: The Affordable Way To Put Your TV On The Wall
Latest Linux Articles
  1. Preview: Radeon Gallium3D Performance For CS:GO On Linux
  2. XWayland Linux Gaming Performance With GNOME Wayland On Fedora 21
  3. EXT4/Btrfs/XFS/F2FS Benchmarks On Linux 3.17
  4. Fedora 21 Alpha First Impressions: It's Great
Latest Linux News
  1. Dash As The Default Shell For Fedora?
  2. CUPS Turn 15 Years Old, CUPS 2.0 Released
  3. VA-API Gallium3D State Tracker Added Back To Mesa
  4. Radeon DRM Gets New Information Ioctl Queries
  5. Mir 0.8 Works On Less ABI Breakage, Touchspots, Responsiveness
  6. CS:GO For Linux Gains Better Stability, Community Server Support
  7. NVIDIA Issues Updated 340.46 Long-Lived Driver Release
  8. KDE Plasma 5.1 Now In Beta
  9. Systemd & Debian Were Most Popular In September
  10. Microsoft Announces... Windows 10 With A Start Menu
Latest Forum Discussions
  1. Microsoft Announces... Windows 10 With A Start Menu
  2. Borderlands 2 Launches On Steam For Linux
  3. Take the Steam Survey results with a grain of salt. It is flawed.
  4. X.Org Is Looking For Some Female Help
  5. Hacking Express gate (Asus Splashtop)
  6. NVIDIA Alerts Nouveau: They're Starting To Sign/Validate GPU Firmware Images
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. Nero CD/DVD Burning Software On Linux Is Dead