https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70853
Bug ID: 70853 Summary: ICE on pointing to null, in gfc_add_block_to_block, at fortran/trans.c:1599 Product: gcc Version: 6.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gerhard.steinmetz.fort...@t-online.de Target Milestone: --- With the following codes : $ cat z1.f90 program p real, pointer :: z(:) z(1:2) => null() end $ gfortran-6 -c z1.f90 internal compiler error: in gfc_add_block_to_block, at fortran/trans.c:1599 $ cat z2.f90 program p real, pointer :: z(:) z(2:1) => null() end $ gfortran-6 -c z2.f90 internal compiler error: in gfc_add_block_to_block, at fortran/trans.c:1599 $ gfortran-5.3.1 -c z2.f90 internal compiler error: Segmentation fault