[Bug fortran/44430] New: [4.6 Regression] Infinite recursion with -fdump-parse-tree

["tkoenig at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

This is with revision 160336.

$ cat > a.f90
subroutine foo(a,b)
  real :: a(10), b(5)
  a(1:5) = b
end
$ gfortran -fdump-parse-tree a.f90 |  head -40

        Namespace: A-H: (REAL 4) I-N: (INTEGER 4) O-Z: (REAL 4)
        procedure name = foo
        symtree: __convert_i4_i8  Ambig 0
        symbol __convert_i4_i8 (INTEGER 8)(PROCEDURE UNKNOWN-INTENT
UNKNOWN-ACCESS UNKNOWN-PROC UNKNOWN FUNCTION ELEMENTAL PURE)
        result: __convert_i4_i8

        symtree: a  Ambig 0
        symbol a (REAL 4)(VARIABLE UNKNOWN-INTENT UNKNOWN-ACCESS UNKNOWN-PROC
UNKNOWN DIMENSION DUMMY)
        Array spec:(1 [0] AS_EXPLICIT 1 10 )

        symtree: b  Ambig 0
        symbol b (REAL 4)(VARIABLE UNKNOWN-INTENT UNKNOWN-ACCESS UNKNOWN-PROC
UNKNOWN DIMENSION DUMMY)
        Array spec:(1 [0] AS_EXPLICIT 1 5 )

        symtree: foo  Ambig 0
        symbol foo (UNKNOWN 0)(PROCEDURE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC UNKNOWN SUBROUTINE)
        Formal arglist: a b
        Formal namespace
          Namespace: A-H: (REAL 4) I-N: (INTEGER 4) O-Z: (REAL 4)
          procedure name = foo
          symtree: __convert_i4_i8  Ambig 0
          symbol __convert_i4_i8 (INTEGER 8)(PROCEDURE UNKNOWN-INTENT
UNKNOWN-ACCESS UNKNOWN-PROC UNKNOWN FUNCTION ELEMENTAL PURE)
          result: __convert_i4_i8

          symtree: a  Ambig 0
          symbol a (REAL 4)(VARIABLE UNKNOWN-INTENT UNKNOWN-ACCESS UNKNOWN-PROC
UNKNOWN DIMENSION DUMMY)
          Array spec:(1 [0] AS_EXPLICIT 1 10 )

          symtree: b  Ambig 0
          symbol b (REAL 4)(VARIABLE UNKNOWN-INTENT UNKNOWN-ACCESS UNKNOWN-PROC
UNKNOWN DIMENSION DUMMY)
          Array spec:(1 [0] AS_EXPLICIT 1 5 )

          symtree: foo  Ambig 0
          symbol foo (UNKNOWN 0)(PROCEDURE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC UNKNOWN SUBROUTINE)
          Formal arglist: a b
          Formal namespace
            Namespace: A-H: (REAL 4) I-N: (INTEGER 4) O-Z: (REAL 4)
            procedure name = foo
            symtree: __convert_i4_i8  Ambig 0
            symbol __convert_i4_i8 (INTEGER 8)(PROCEDURE UNKNOWN-INTENT
UNKNOWN-ACCESS UNKNOWN-PROC UNKNOWN FUNCTION ELEMENTAL PURE)
            result: __convert_i4_i8

            symtree: a  Ambig 0
            symbol a (REAL 4)(VARIABLE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC UNKNOWN DIMENSION DUMMY)
            Array spec:(1 [0] AS_EXPLICIT 1 10 )

            symtree: b  Ambig 0
            symbol b (REAL 4)(VARIABLE UNKNOWN-INTENT UNKNOWN-ACCESS
UNKNOWN-PROC UNKNOWN DIMENSION DUMMY)
            Array spec:(1 [0] AS_EXPLICIT 1 5 )

... and so on.


-- 
           Summary: [4.6 Regression] Infinite recursion with -fdump-parse-
                    tree
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tkoenig at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44430