This change ensures that isl is only detected if it includes code generation support. This allows us to remove a lot of conditional compilation and also avoids missing test cases in case the feature is not available. llvm-svn: 166403
llvm-svn: 165034
llvm-svn: 156305
This version is equivalent to commit ba26ebece8f5be84e9bd6315611d412af797147e in the old git repository. llvm-svn: 130476