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NVIDIA Publishes New PTX Back-End For LLVM

NVIDIA

Published on 28 April 2012 01:48 PM EDT
Written by Michael Larabel in NVIDIA
3 Comments

NVIDIA this week announced their release of the "NVPTX" back-end for LLVM with the hope to replace the existing PTX (Parallel Thread Execution) back-end inside this compiler infrastructure. This open-source code coming out of NVIDIA is based upon their internal sources.

LLVM has the existing PTX back-end for creating PTX code out of LLVM bit-code, but now NVIDIA's bringing their new NVPTX back-end to upstream LLVM for integration. First of all, Parallel Thread Execution is an Assembly-like language used by NVIDIA CUDA after taken out of the C-like CUDA code. There's some additional references on NVIDIA's PTX via Wikipedia.

Justin Holewinski of NVIDIA sent to the LLVM developer mailing list the new NVPTX back-end for the community compliments of NVIDIA.
"We at NVIDIA would like to contribute back to the LLVM open-source community by up-streaming the NVPTX back-end for LLVM. This back-end is based on the sources used by NVIDIA, and currently provides significantly more functionality than the current PTX back-end. Some functionality is currently disabled due to dependencies on LLVM core changes that we are also in the process of up-streaming, but the back-end is very usable in its current state and would benefit all current and future users of the LLVM PTX back-end."

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 .
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