https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83975
Bug ID: 83975 Summary: [8 Regression] ICE in set_parm_default_def_partition, at tree-ssa-coalesce.c:1919 Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Changed between 20171217 and 20180107 : $ cat z1.f90 subroutine s(x) character(*) :: x associate (y => x) end associate end $ gfortran-8-20171217 -c z1.f90 $ $ gfortran-8-20180121 -c z1.f90 during RTL pass: expand z1.f90:1:0: subroutine s(x) internal compiler error: in set_parm_default_def_partition, at tree-ssa-coalesce.c:1919 0xc72efc set_parm_default_def_partition ../../gcc/tree-ssa-coalesce.c:1919 0xc72e07 for_all_parms ../../gcc/tree-ssa-coalesce.c:1023 0xc74798 get_parm_default_def_partitions(_var_map*) ../../gcc/tree-ssa-coalesce.c:1936 0xc2099b remove_ssa_form ../../gcc/tree-outof-ssa.c:971 0xc2099b rewrite_out_of_ssa(ssaexpand*) ../../gcc/tree-outof-ssa.c:1174 0x805810 execute ../../gcc/cfgexpand.c:6218