# LLVM or GCC


* modify backend and add switches for A2 architectural experiments

* modify backend to add new accelerator/sandbox ops

## links

### llvm

* https://jonathan2251.github.io/lbd/about.html

* https://stffrdhrn.github.io/page/archive.html

* https://stffrdhrn.github.io/software/embedded/openrisc/2018/06/03/gcc_passes.html

* https://jonathan2251.github.io/lbd/TutorialLLVMBackendCpu0.pdf