https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103610
Bug ID: 103610 Summary: ICE in gfc_convert_mpz_to_signed, at fortran/simplify.c:193 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Affects versions down to at least r5 : $ cat z1.f90 program p integer, parameter :: a(-1) = 1 integer, parameter :: b(1) = maskl(shape(a)) end $ cat z2.f90 program p integer, parameter :: a(-1) = maskl(shape(a)) end $ gfortran-12-20211205 -c z1.f90 f951: internal compiler error: in gfc_convert_mpz_to_signed, at fortran/simplify.c:193 0x8288e1 gfc_convert_mpz_to_signed(__mpz_struct*, int) ../../gcc/fortran/simplify.c:193 0x830010 gfc_simplify_maskl(gfc_expr*, gfc_expr*) ../../gcc/fortran/simplify.c:4923 0x7aefd6 do_simplify ../../gcc/fortran/intrinsic.c:4648 0x7b9f98 gfc_intrinsic_func_interface(gfc_expr*, int) ../../gcc/fortran/intrinsic.c:4920 0x79fb09 gfc_simplify_expr(gfc_expr*, int) ../../gcc/fortran/expr.c:2219 0x7a065a scalarize_intrinsic_call ../../gcc/fortran/expr.c:2486 0x79fb5d gfc_simplify_expr(gfc_expr*, int) ../../gcc/fortran/expr.c:2227 0x7ba14e gfc_intrinsic_func_interface(gfc_expr*, int) ../../gcc/fortran/intrinsic.c:5070 0x80dcac resolve_unknown_f ../../gcc/fortran/resolve.c:2972 0x80dcac resolve_function ../../gcc/fortran/resolve.c:3329 0x80dcac gfc_resolve_expr(gfc_expr*) ../../gcc/fortran/resolve.c:7166 0x79f054 gfc_reduce_init_expr(gfc_expr*) ../../gcc/fortran/expr.c:3155 0x7a1fc0 gfc_match_init_expr(gfc_expr**) ../../gcc/fortran/expr.c:3203 0x78c3d4 variable_decl ../../gcc/fortran/decl.c:3004 0x78c3d4 gfc_match_data_decl() ../../gcc/fortran/decl.c:6297 0x7f6343 match_word ../../gcc/fortran/parse.c:67 0x7f6343 decode_statement ../../gcc/fortran/parse.c:378 0x7f7d8a next_free ../../gcc/fortran/parse.c:1397 0x7f7d8a next_statement ../../gcc/fortran/parse.c:1629 0x7f931b parse_spec ../../gcc/fortran/parse.c:4168