OpenCL driver and compiler for the LE1.

The driver is made from several components:

• Clover is the driver, it uses clang to parse and transform the kernels into coarsened bytecode files.
• The bytecode is statically linked to the OpenCL runtime library (libclc).
• The final bytecode is compiled using the LLVM backend and llc.
• And the code is run using the simulator (libInsizzle) from within Clover.

Installation:

• Install 'install-dir' to /opt/esdg-opencl/.
• Build and install LLVM
• Build clover and copy the resulting libOpenCL.so files to /opt/esdg-opencl/lib
• configure and make libclc, which will produce builtins.bc in the le1-llvm-none directory. Copy the .bc file to /opt/esdg-opencl/lib

And don't forget it doesn't really work yet!