https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72791

            Bug ID: 72791
           Summary: Internal compiler error for reshape intrinsic
           Product: gcc
           Version: 5.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: patrick.seewald at gmail dot com
  Target Milestone: ---

I get an internal compiler error (Segmentation fault) when compiling the
following program

program reshape_bug
   integer, dimension(2) :: order1
   integer, dimension(1) :: order2
   real, dimension(2,2,2) :: arr1, arr2

   order1 = [1,2]
   order2 = [3]

   arr2 = reshape(arr1, shape=shape(arr2), order=[order1,order2])
end program

with

$ gfortran reshape_bug.f90

Complete output:

f951: internal compiler error: Segmentation fault
0xa7040f crash_signal
        /data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/toplev.c:383
0x5fe04f gfc_check_reshape(gfc_expr*, gfc_expr*, gfc_expr*, gfc_expr*)
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/check.c:3848
0x62f7b2 check_specific
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/intrinsic.c:4228
0x63d8cd gfc_intrinsic_func_interface(gfc_expr*, int)
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/intrinsic.c:4443
0x67cddf resolve_unknown_f
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/resolve.c:2704
0x67cddf resolve_function
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/resolve.c:2999
0x67cddf gfc_resolve_expr(gfc_expr*)
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/resolve.c:6256
0x6816e1 gfc_resolve_code(gfc_code*, gfc_namespace*)
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/resolve.c:10189
0x684272 resolve_codes
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/resolve.c:15178
0x684361 gfc_resolve
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/resolve.c:15212
0x66fe8a resolve_all_program_units
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/parse.c:5345
0x66fe8a gfc_parse_file()
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/parse.c:5588
0x6aeee5 gfc_be_parse_file
       
/data/software/cp2k/tools/toolchain/build/gcc-5.4.0/gcc/fortran/f95-lang.c:229
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

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