Loop unroll pass

Find the loop unroll factors for HLS C programs. Based on COMBA.

Requirements

• LLVM 10.0 or higher
• CMake 2.8 or higher

Building

The following can be used to build a shared library (.so) plugin for the LLVM opt tool:

• Create a new folder build:

mkdir build
cd build

• Create the build system and build the plugin (Make is used):

cmake .. -DLLVM_ROOT=/mnt/h/llvm/build
make

Testing

Testing can be done (from the build folder) using:

opt -load-pass-plugin ./lib/LoopUnrollPass.so -passes=loopunroll -disable-output ../test/test.ll