Velociraptor

"Velociraptor is a compiler toolkit designed for array-based languages that is not tied to a single source language. You can use it to build compilers and other tools for array-based languages. Velociraptor takes as input a high-level IR called Velociraptor IR (VRIR for short) which is described below. Velociraptor provides multiple components that can be used to build compilers. The first component libVRIR is an analysis and transformation infrastructure that can be used by both static and dynamic tools. The second component, VRdino, is a dynamic compiler that generates LLVM for CPUs, and OpenCL for GPUs from VRIR.

VRIR is a typed, AST based IR used by Velociraptor. VRIR is designed to be easy to generate from array-based languages. It has built-in operators for many high-level array operations (like matrix multiplication), flexible array indexing schemes, and support for various array layouts. VRIR also includes high-level constructs for parallelism and GPU acceleration. VRIR has a textual representation inspired from Lisp S-expressions.

VRdino is the dynamic backend for Velociraptor. It generates LLVM for CPUs and OpenCL for GPUs, making it portable across many different systems. It performs some interesting optimizations, such as runtime code specialization of regions identified using region detection analysis. VRdino is accompanied by its intelligent runtime system, that is designed for maximizing throughput in hybrid systems by doing operations in parallel and by minimizing redundant data transfers. VRdino depends upon libVRIR, LLVM, OpenCL, BLAS and RaijinCL."

http://www.sable.mcgill.ca/mclab/projects/velociraptor/

A Toolkit for Building Dynamic Compilers for Array-Based Languages Targeting CPUs and GPUs - http://hgpu.org/?p=14628