Dear all, The attached file is a small reproducer which leads to an segemntation fault using `F-Front -d mo_segv.f90` Tested with master at commit 9a63a2558. [mo_segv.f90.zip](https://github.com/omni-compiler/xcodeml-tools/files/4559852/mo_segv.f90.zip) Without -d it seems to work. It is a reproducer for a much larger case. Cheerio, Luis