https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93813
Bug ID: 93813 Summary: [8/9/10 Regression] ICE in gfc_trans_select_type_cases, at fortran/trans-stmt.c:2874 Product: gcc Version: 10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Started to ICE with gfortran-7 : (r10 compiles with "associate (y => x)") $ cat z1.f90 program p type t end type type, extends(t) :: t2 end type class(t), allocatable :: x associate (y => (x)) select type (y) type is (t2) end select end associate end $ gfortran-6 -c z1.f90 $ $ gfortran-10-20200216 -c z1.f90 z1.f90:8:0: 8 | select type (y) | internal compiler error: Segmentation fault 0xbae76f crash_signal ../../gcc/toplev.c:328 0x76cafe gfc_trans_select_type_cases ../../gcc/fortran/trans-stmt.c:2874 0x76cafe gfc_trans_select_type(gfc_code*) ../../gcc/fortran/trans-stmt.c:3622 0x6f7c67 trans_code ../../gcc/fortran/trans.c:1980 0x76b81f gfc_trans_block_construct(gfc_code*) ../../gcc/fortran/trans-stmt.c:2276 0x6f7bd7 trans_code ../../gcc/fortran/trans.c:1960 0x7210a4 gfc_generate_function_code(gfc_namespace*) ../../gcc/fortran/trans-decl.c:6835 0x6a9ec6 translate_all_program_units ../../gcc/fortran/parse.c:6306 0x6a9ec6 gfc_parse_file() ../../gcc/fortran/parse.c:6545 0x6f44ff gfc_be_parse_file ../../gcc/fortran/f95-lang.c:210