AMD Announces Its IL Code Generator For OpenCL
Written by Michael Larabel in AMD on 12 December 2011 at 11:45 AM EST. Add A Comment
On Friday AMD released an LLVM back-end for its R600 Gallium3D Linux driver. The LLVM driver back-end was based upon the AMD IL LLVM back-end for OpenCL, which AMD has now separately announced to the LLVM developers as a new source-code drop.

Micah Villmow, a GPGPU compiler engineer at AMD, announced the release this morning of the AMD IL code generator back-end for OpenCL. "I am proud to announce that AMD is Open Sourcing AMDIL Code Generator for LLVM 2.9."

As Tom Stellard mentioned last week when talking about this back-end for the Radeon Gallium3D driver, it's currently just compatible with LLVM 2.9 and not the latest LLVM 3.0 release -- that support will eventually come. "This is the first step of the process, so I know there will be issues that show up. In the next few months, we will be providing more unit tests and an LLVM 3.0 compatible version, and finally a TOT version for inclusion into the tree. I look forward to any constructive feedback and will as answer any questions that I can."

There's also some other initial limitations of this open-source code generator, as talked about in Micah's mailing list message. This code drop will help with AMD open-source OpenCL support.

In terms of the LLVM back-end for the R600g graphics driver, it's being received rather positively (mailing list thread and the forum discussion).
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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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