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

IBM Pushes New SystemZ Back-End For LLVM

Hardware

Published on 14 April 2013 08:55 PM EDT
Written by Michael Larabel in Hardware
1 Comment

IBM is becoming increasingly interested in SystemZ for a variety of purposes, including the use of the Gallium3D LLVMpipe driver. As a result, IBM developers have created a new LLVM back-end for their mainframe computers.

Ulrich Weigand of IBM announced the new SystemZ back-end on Sunday with this mailing list message. He wrote, "We're interested in this for the same reason we've been interested in the PowerPC back-end recently: to enable packages in upcoming enterprise Linux distributions that need LLVM support (e.g. 3D desktop support via llvmpipe)."

There used to be a SystemZ back-end in LLVM but it was dropped as it wasn't being maintained well. This new back-end is partially based upon that old code but has been re-written extensively. "I understand that a SystemZ backend used to be part of LLVM for a while, but has been removed (due to lack of maintenance, it would appear). While the backend provided by this set of patches is originally based on that old SystemZ backend, it has been significantly rewritten and many of the missing 'modern' features added."

This new back-end supports the 64-bit z/Architecture, support for Z10 processors and newer, a Linux operating system support focus, and the back-end is striding on feature completeness and correctness rather than pure performance.

With this new SystemZ LLVM back-end, the C/C++ compiler front-end paired with this back-end is passing many tests, there's a working integrated assembler, a working assembler parser, and working MCJIT support.

Recently IBM has been advancing the LLVM PowerPC support as well as bringing Gallium3D LLVMpipe to PowerPC. They've also been bringing up POWER8 in the Linux kernel.

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. Btrfs On 4 x Intel SSDs In RAID 0/1/5/6/10
  2. AMD Radeon R9 290 On Ubuntu 14.10: RadeonSI Gallium3D vs. Catalyst
  3. MSI X99S SLI PLUS On Linux
  4. NVIDIA GeForce GTX 970 Offers Great Linux Performance
Latest Linux Articles
  1. Windows 8.1 vs. Ubuntu 14.10 With Intel HD Graphics
  2. 6-Way Ubuntu 14.10 Radeon Gallium3D vs. Catalyst Driver Comparison
  3. NVIDIA vs. Nouveau Drivers On Ubuntu 14.10
  4. Ubuntu 14.10 Offers AMD Radeon Driver Performance Improvements
Latest Linux News
  1. GTK+ 3.16's New GtkGLArea Widget Gets Improved
  2. X.Org Server 1.17 ABI Bumped
  3. Fedora 21 Beta To Be Released Next Week
  4. Go 1.4 Beta Release Brings Big Runtime Changes
  5. SIMD For JavaScript Continues Coming Along
  6. GNOME 3.15.1 Released
  7. Red Hat Software Collections 1.2 Adds GCC 4.9, Nginx 1.6
  8. GLAMOR Acceleration Continues To Be Cleaned Up
  9. Russia's Yandex Web Browser Finally Released For Linux
  10. Linux Kernel Finally Being Optimized For SSHDs
Latest Forum Discussions
  1. Is foolish currently develop in machine code, hexadecimal and assembly?
  2. Reducing The CPU Usage In Mesa To Improve Performance
  3. How to get rid of Linux
  4. Help diagnosing problems with a Readon HD 4670 on Mesa 10.3.2-1
  5. Advertisements On Phoronix
  6. nv and xorg.conf under Debian PPC
  7. Looking for a Open-Source AMD experienced Linux mentor
  8. Bad perfomance in gaming