"# LLVM-parser" https://fossies.org/diffs/mono-llvm/3.6.0+mono201805011452_vs_6.0+mono20180728010642/lib/Analysis/ConstantFolding.cpp-diff.html This file is about some changes in llvm3.6.0 https://repo.hca.bsc.es/gitlab/rferrer/llvm-epi-0.8/-/commit/105e892c2cf68605453cd3b5147a0f8ee31d8784 this website is to solve some bitreverse builtins things