llvm-project

9fcf0885 - utils: remove existing cloog and isl dirs before git cloning

utils: remove existing cloog and isl dirs before git cloning Patch adapted from "Dmitry N. Mikushin" <maemarcus@gmail.com>. Merged from: https://llvm.org/svn/llvm-project/polly/trunk@168250 llvm-svn: 170730