https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92896
Bug ID: 92896 Summary: [10 Regression] ICE in reduce_unary, at fortran/arith.c:1283 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: --- A legacy extension changed between 20191103 and 20191110 : $ cat z1.f90 program p print *, -[integer :: 1, [integer(8) :: '2']] end $ cat z7.f90 program p print *, +[integer :: 1, [integer(8) :: '2']] print *, 1-[integer :: 1, [integer(8) :: '2']] print *, 1*[integer :: 1, [integer(8) :: '2']] print *, [integer :: 1, [integer(8) :: '2']]/2 !... end $ gfortran-10-20191103 -c z1.f90 -fdec z1.f90:2:42: 2 | print *, -[integer :: 1, [integer(8) :: '2']] | 1 Error: Cannot convert CHARACTER(1) to INTEGER(8) at (1) $ $ gfortran-10-20191208 -c z1.f90 -fdec -fno-range-check $ $ gfortran-10-20191208 -c z1.f90 -fdec f951: internal compiler error: Segmentation fault 0xd05dff crash_signal ../../gcc/toplev.c:328 0x62791b reduce_unary ../../gcc/fortran/arith.c:1283 0x6278ef reduce_unary ../../gcc/fortran/arith.c:1270 0x62813f eval_intrinsic ../../gcc/fortran/arith.c:1609 0x696b64 match_level_2 ../../gcc/fortran/matchexp.c:490 0x696b82 match_level_3 ../../gcc/fortran/matchexp.c:551 0x696c74 match_level_4 ../../gcc/fortran/matchexp.c:599 0x696c74 match_and_operand ../../gcc/fortran/matchexp.c:693 0x696e62 match_or_operand ../../gcc/fortran/matchexp.c:722 0x696f32 match_equiv_operand ../../gcc/fortran/matchexp.c:765 0x697004 match_level_5 ../../gcc/fortran/matchexp.c:811 0x6963e1 gfc_match_expr(gfc_expr**) ../../gcc/fortran/matchexp.c:870 0x67dd39 match_io_element ../../gcc/fortran/io.c:3729 0x6806c5 match_io_list ../../gcc/fortran/io.c:3777 0x680ad4 match_io ../../gcc/fortran/io.c:4476 0x6847fa gfc_match_print() ../../gcc/fortran/io.c:4533 0x6b0051 match_word ../../gcc/fortran/parse.c:65 0x6b49e3 decode_statement ../../gcc/fortran/parse.c:537 0x6b4e1a next_free ../../gcc/fortran/parse.c:1279 0x6b4e1a next_statement ../../gcc/fortran/parse.c:1511