[Bug 1842164] Re: internal compiler error: in gfc_typenode_for_spec, at fortran/trans-types.c:1157

Wed Sep 4 09:40:44 UTC 2019

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------------------------------------------------------------------------
On 2018-12-19T16:11:10+00:00 Gscfq wrote:

Without a program statement :

$ cat z1.f90
integer(len((c)) :: n
end

$ gfortran-9-20181216 -c z1.f90
$ gfortran-9-20181216 -c z1.f90 -fimplicit-none
z1.f90:1:0:

    1 | integer(len((c)) :: n
      |
internal compiler error: in gfc_typenode_for_spec, at fortran/trans-types.c:1120
0x78e59d gfc_typenode_for_spec(gfc_typespec*, int)
        ../../gcc/fortran/trans-types.c:1120
0x78c1f6 gfc_sym_type(gfc_symbol*)
        ../../gcc/fortran/trans-types.c:2243
0x71af9e gfc_get_symbol_decl(gfc_symbol*)
        ../../gcc/fortran/trans-decl.c:1696
0x71ea47 generate_local_decl
        ../../gcc/fortran/trans-decl.c:5600
0x6d3d12 do_traverse_symtree
        ../../gcc/fortran/symbol.c:4151
0x71ff9c generate_local_vars
        ../../gcc/fortran/trans-decl.c:5800
0x71ff9c gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6444
0x69d7c6 translate_all_program_units
        ../../gcc/fortran/parse.c:6128
0x69d7c6 gfc_parse_file()
        ../../gcc/fortran/parse.c:6331
0x6e6fcf gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:204

---

Invalid syntax also silently accepted :

$ cat z3.f90
integer(m::n
end

$ gfortran-9-20181216 -c z3.f90
$ gfortran-9-20181216 -c z3.f90 -fimplicit-none
z3.f90:1:0:

    1 | integer(m::n
      |
internal compiler error: in gfc_typenode_for_spec, at fortran/trans-types.c:1120
#...

Reply at:
https://bugs.launchpad.net/ubuntu/+source/gcc-8/+bug/1842164/comments/0

------------------------------------------------------------------------
On 2018-12-19T16:11:57+00:00 Gscfq wrote:

Detected :

$ cat z2.f90
program p
integer(len((c)) :: n
end

$ cat z5.f90
implicit none
integer(len((c)) :: n
end

$ gfortran-9-20181216 -c z2.f90 -fimplicit-none
z2.f90:2:14:

    2 | integer(len((c)) :: n
      |              1
Error: Symbol 'c' at (1) has no IMPLICIT type

Reply at:
https://bugs.launchpad.net/ubuntu/+source/gcc-8/+bug/1842164/comments/1

------------------------------------------------------------------------
On 2018-12-19T16:38:48+00:00 Dominiq wrote:

Confirmed from at least 4.8 up to trunk (9.0).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/gcc-8/+bug/1842164/comments/2

** Changed in: gcc
       Status: Unknown => Confirmed

** Changed in: gcc
   Importance: Unknown => Medium

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https://bugs.launchpad.net/bugs/1842164

Title:
  internal compiler error: in gfc_typenode_for_spec, at fortran/trans-
  types.c:1157

Status in gcc:
  Confirmed
Status in gcc-8 package in Ubuntu:
  Confirmed
Status in gcc-9 package in Ubuntu:
  Confirmed

Bug description:
  I think internal compiler error should not appear for compilation of module.f90.
  The information about source and compiler and so on are as follows.

  $ cat module.f90
  module minpack
    implicit none
    type :: hybrdtype 
      integer :: info=-1 
      integer :: n,lwa
      double precision :: tol=1d-10 
      double precision,dimension(:),allocatable :: x,fvec,wa
      procedure(),nopass,pointer :: fcn => null() 
    end type
    contains
      subroutine run_hybrd(self)
        class(hybrdtype),intent(inout) :: self
        call hybrd1(self%fcn,self%n,self%x,self%fvec,self%tol,self%info,self%wa,self%lwa)
      end subroutine
  end module

  $ gfortran -c module.f90
  module.f90:13:0:

         call hybrd1(self%fcn,self%n,self%x,self%fvec,self%tol,self%info,self%wa,self%lwa)

  internal compiler error: in gfc_typenode_for_spec, at fortran/trans-types.c:1157
  Please submit a full bug report,
  with preprocessed source if appropriate.
  See <file:///usr/share/doc/gcc-8/README.Bugs> for instructions.

  $ gfortran -v
  Using built-in specs.
  COLLECT_GCC=gfortran
  COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper
  OFFLOAD_TARGET_NAMES=nvptx-none
  OFFLOAD_TARGET_DEFAULT=1
  Target: x86_64-linux-gnu
  Configured with: ../src/configure -v --with-pkgversion='Ubuntu 8.3.0-6ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
  Thread model: posix
  gcc version 8.3.0 (Ubuntu 8.3.0-6ubuntu1)

  $ lsb_release -rd
  Description:	Ubuntu 19.04
  Release:	19.04

  $ apt-cache policy gfortran
  gfortran:
    Installed: 4:8.3.0-1ubuntu3
    Candidate: 4:8.3.0-1ubuntu3
    Version table:
   *** 4:8.3.0-1ubuntu3 500
          500 http://jp.archive.ubuntu.com/ubuntu disco/main amd64 Packages
          100 /var/lib/dpkg/status

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