https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96101
Bug ID: 96101 Summary: [9/10/11 Regression] ICE in fold_convert_loc, at fold-const.c:2398 Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Started with early r8 (before 20180525), r7 compiles it : $ cat z1.f90 program p character(:), allocatable :: x x = 'abc' associate (y => ([x(:)])) print *, y end associate end $ gfortran-7 -c z1.f90 $ $ gfortran-11-20200705 -c z1.f90 z1.f90:5:0: 5 | print *, y | internal compiler error: Segmentation fault 0xd6980f crash_signal ../../gcc/toplev.c:328 0x9d1760 contains_struct_check(tree_node*, tree_node_structure_enum, char const*, int, char const*) ../../gcc/tree.h:3416 0x9d1760 fold_convert_loc(unsigned int, tree_node*, tree_node*) ../../gcc/fold-const.c:2398 0x750120 gfc_trans_create_temp_array(stmtblock_t*, stmtblock_t*, gfc_ss*, tree_node*, tree_node*, bool, bool, bool, locus*) ../../gcc/fortran/trans-array.c:1415 0x75d797 gfc_conv_loop_setup(gfc_loopinfo*, locus*) ../../gcc/fortran/trans-array.c:5246 0x75dae2 gfc_conv_expr_descriptor(gfc_se*, gfc_expr*) ../../gcc/fortran/trans-array.c:7447 0x7de401 trans_associate_var ../../gcc/fortran/trans-stmt.c:1890 0x7e4af9 gfc_trans_block_construct(gfc_code*) ../../gcc/fortran/trans-stmt.c:2283 0x7463a7 trans_code ../../gcc/fortran/trans.c:1960 0x77d745 gfc_generate_function_code(gfc_namespace*) ../../gcc/fortran/trans-decl.c:6840 0x6f6026 translate_all_program_units ../../gcc/fortran/parse.c:6307 0x6f6026 gfc_parse_file() ../../gcc/fortran/parse.c:6546 0x74269f gfc_be_parse_file ../../gcc/fortran/f95-lang.c:212