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. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  2. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  3. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
  4. 6-Way Winter 2014 Linux Distribution Comparison
Latest Linux News
  1. Linux 3.19-rc1 Kernel Released Ahead Of Schedule
  2. Civilization: Beyond Earth Linux GPU/Driver Benchmarks
  3. X.Org Server 1.16.3 Released To Fix Security Issues
  4. Linux 3.19 Merge Window Closes Ahead Of Schedule
  5. MIPS R6 Architecture Now Supported By GCC
  6. LowRISC To Feature Tagged Memory & Minion Cores
  7. Intel Skylake Audio Support For Linux 3.19
  8. After 10+ Years, NetworkManager Reaches v1.0
  9. VDPAU Updated To v0.9
  10. An Open Hardware Random Number Generator Proposed
Latest Forum Discussions
  1. FPS capped on Linux (AMD fglrx drivers)
  2. Need some hand holding with upgrading xserver
  3. Are there an app using HSA ?
  4. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems
  5. XLennart: A Game For Systemd Haters With Nothing Better To Do
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. Debian init discussion in Phoenix Wright format
  8. Bench specific mount point