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

Compilers Mature For Intel Sandy/Ivy Bridge, Prep For Haswell

Michael Larabel

Published on 27 January 2012
Written by Michael Larabel
Page 2 of 7 - 1 Comment

Within LLVM, the initial AVX (v1) support did not arrive until the LLVM 3.0 release at the beginning of December of 2011. While the LLVM support was officially released nearly a year after Sandy Bridge appeared (and even after AMD's belated Bulldozer was introduced), it was full support for the AVX1 instructions in their x86 LLVM back-end, assembler, and disassembler. AVX2 support by that time was also started.

Due to the LLVM release schedule with the Sandy Bridge support not coming until the end of 2011, it did allow initial Ivy Bridge support to make it into the release (the Ivy Bridge patches for GCC were committed last summer as well). Therefore introduced to LLVM 3.0 was the Sandy/Ivy Bridge support with AVX1 along with the random number generator for Ivy Bridge and SSE4a/BMI instructions (there were even new Atom extensions finally added in too). For those using LLVM/Clang 3.0, the Sandy/Ivy Bridge support is therefore in good shape.

LLVM 3.1, which will be release some time later in this year, has even better AVX1 support for the latest AMD and Intel processors. It also has various AVX1-releated bug-fixes as part of the release. LLVM 3.1 in 2012 will also feature support for Haswell's AVX2 instructions, but at the moment in the current code-base, the support is considered incomplete (hopefully that will change by the final release in some months).

Latest Linux Hardware Reviews
  1. Intel Xeon E5-1680 v3 & E5-2687W v3 Compared To The Core i7 5960X On Linux
  2. Intel 120GB 530 Series SSD Linux Performance
  3. Btrfs/EXT4/XFS/F2FS RAID 0/1/5/6/10 Linux Benchmarks On Four SSDs
  4. AMD's Windows Catalyst Driver Remains Largely Faster Than Linux Drivers
Latest Linux Articles
  1. NVIDIA vs. Nouveau Drivers With Linux 3.18 + Mesa 10.4-devel
  2. Is The Open-Source NVIDIA Driver Fast Enough For Steam On Linux Gaming?
  3. Linux 3.18 File-System Performance Minimally Changed But Possible Regressions
  4. AMD Radeon Gallium3D Is Catching Up & Sometimes Beating Catalyst On Linux
Latest Linux News
  1. V2 Of KDBUS Published For Linux Kernel Review
  2. VirtualBox 4.3.20 Arrives, Still No Sign Of VirtualBox 4.4
  3. Scientific Linux 6.6 vs. Scientific Linux 7.0 Benchmarks
  4. Qualcomm Looks To Get Into The ARM Server Business
  5. HHVM 3.4 Adds New Features, Support
  6. More Radeon Driver Changes Queued For Linux 3.19
  7. Unigine 2.0 Alpha 2 Adds C# Support
  8. FFmpeg Is Returning To Ubuntu With 15.04 Release
  9. Linux Version Of Civilization: Beyond Earth Still Coming Along
  10. Yahoo To Become Default Search Provider For Firefox
Latest Forum Discussions
  1. Cant get working Kaveri APU - A10-7850k
  2. Roadmap to Catalyst 14.10 ?
  3. Debian Init System Coupling Vote Results
  4. The Slides Announcing The New "AMDGPU" Kernel Driver
  5. Updated and Optimized Ubuntu Free Graphics Drivers
  6. Debian Developer Resigns From The Systemd Maintainership Team
  7. Ubuntu Developers Still Thinking What To Do About Adobe Flash Support
  8. How to get rid of Linux