Phoronix: Mesa Compiler Stacks, A Hard Dependency On LLVM

Tom Stellard, the former Google Summer of Code student who worked on R300 GLSL improvements and a new register allocator, is now working for AMD and his work is focused on bringing up open-source OpenCL / GPGPU support in the Radeon Linux driver...

http://www.phoronix.com/vr.php?view=OTkwOQ