On Apr 11, 2010, at 12:05 PM, Grigori Fursin wrote: > By the way, I remember that when we had first discussions to include plugin > framework to GCC some > years ago, > first feedback was extremely negative. Nevertheless, GCC 4.5 will feature > plugin framework (that > will > also be very useful for research), so maybe GCC will support JIT compilation > too one day ;) ...
Sure, I'm not saying that GCC won't make amazing infrastructure improvements, just explaining why opencl implementors didn't want to block on waiting for it to happen. > As for OpenCL and lack of JIT support in GCC, we have been effectively > overcoming this problem > for many years using static multi-versioning and run-time version selection > based on program > and system behavior (even though there are obvious limitations), > so I guess we can temporally continue using similar techniques for OpenCL in > GCC... I don't think that this is sufficient to implement OpenCL-the-spec well. You can definitely add support for opencl-the-kernel-language, but that's only half of OpenCL: the runtime, GPU integration, and OpenGL integration aspects are just as important. You can definitely implement all this by forking out to an assembler etc, the implementation will just not be great. -Chris
