[Bug fortran/30683] New: internal compiler error: Segmentation fault

[Bug fortran/30683] New: internal compiler error: Segmentation fault

[sfilippone at uniroma2 dot it]

The attached code produces the subject error. 
gfortran -c bug_n.f90 
bug_n.f90:45: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
[sfilippo@localhost NEMO]$ gfortran -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.2-20070124/configure --prefix=/usr/local/gcc42
--with-mpfr=/home/travel/GCC/BUILDS/mpfr
--with-gmp-lib=/home/travel/GCC/BUILDS/gmp/lib/
--with-gmp=/home/travel/GCC/BUILDS/gmp
Thread model: posix
gcc version 4.2.0 20070124 (prerelease)


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           Summary: internal compiler error: Segmentation fault
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sfilippone at uniroma2 dot it
 GCC build triplet:  i686-pc-linux-gnu
  GCC host triplet:  i686-pc-linux-gnu
GCC target triplet:  i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683

[Bug fortran/30683] internal compiler error: Segmentation fault

[sfilippone at uniroma2 dot it]

------- Comment #1 from sfilippone at uniroma2 dot it  2007-02-02 22:01 -------
Created an attachment (id=12999)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12999&action=view)
test case


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683

[Bug fortran/30683] internal compiler error: Segmentation fault

[kargl at gcc dot gnu dot org]

------- Comment #2 from kargl at gcc dot gnu dot org  2007-02-02 23:44 -------
I'm testing a patch for this at the moment.  The problem is you
have renamed SIZE to an interface.  That is, this is leading to
the segfault:


  interface size
     module procedure get_fld_size
  end interface

While the standard may permit this construct, it may be prudent to 
not rename standard intrinsic procedures.


-- 

kargl at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kargl at gcc dot gnu dot org
  GCC build triplet| i686-pc-linux-gnu          |i686-pc-linux-gnu
   GCC host triplet| i686-pc-linux-gnu          |i686-pc-linux-gnu
 GCC target triplet| i686-pc-linux-gnu          |i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683

[Bug fortran/30683] internal compiler error: Segmentation fault

[kargl at gcc dot gnu dot org]

------- Comment #3 from kargl at gcc dot gnu dot org  2007-02-03 01:01 -------
Subject: Bug 30683

Author: kargl
Date: Sat Feb  3 01:01:06 2007
New Revision: 121531

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=121531
Log:
2007-02-02  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/30683
        * resolve.c (resolve_generic_f): Check for non-NULL sym.
        * gfortran.dg/interface_10.f90: New test.



Added:
    trunk/gcc/testsuite/gfortran.dg/interface_10.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/resolve.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683

[Bug fortran/30683] [4.2 only] internal compiler error: Segmentation fault

[kargl at gcc dot gnu dot org]

------- Comment #4 from kargl at gcc dot gnu dot org  2007-02-03 01:07 -------
Fixed on trunk.


-- 

kargl at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|internal compiler error:    |[4.2 only] internal compiler
                   |Segmentation fault          |error: Segmentation fault


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683

[Bug fortran/30683] [4.2 only] internal compiler error: Segmentation fault

[fxcoudert at gcc dot gnu dot org]

-- 

fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
  GCC build triplet|i686-pc-linux-gnu           |
   GCC host triplet|i686-pc-linux-gnu           |
 GCC target triplet|i686-pc-linux-gnu           |
           Keywords|                            |ice-on-valid-code, patch
      Known to fail|                            |4.2.0 4.1.2
      Known to work|                            |4.3.0
   Last reconfirmed|0000-00-00 00:00:00         |2007-02-03 10:33:57
               date|                            |
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683

[Bug fortran/30683] [4.2 only] internal compiler error: Segmentation fault

[sfilippone at uniroma2 dot it]

------- Comment #5 from sfilippone at uniroma2 dot it  2007-02-03 12:05 -------
(In reply to comment #2)
> I'm testing a patch for this at the moment.  The problem is you
> have renamed SIZE to an interface.  That is, this is leading to
> the segfault:
> 
> 
>   interface size
>      module procedure get_fld_size
>   end interface
> 
> While the standard may permit this construct, it may be prudent to 
> not rename standard intrinsic procedures.
> 
Agreed. 
I take it you mean it IS standard conforming, right? 
Just to make sure. In any case, an ice is an ice.... 


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683

[Bug fortran/30683] [4.2 only] internal compiler error: Segmentation fault

[sgk at troutmask dot apl dot washington dot edu]

------- Comment #6 from sgk at troutmask dot apl dot washington dot edu  2007-02-03 17:45 -------
Subject: Re:  [4.2 only] internal compiler error: Segmentation fault

On Sat, Feb 03, 2007 at 12:05:53PM -0000, sfilippone at uniroma2 dot it wrote:
> 
> > I'm testing a patch for this at the moment.  The problem is you
> > have renamed SIZE to an interface.  That is, this is leading to
> > the segfault:
> > 
> > 
> >   interface size
> >      module procedure get_fld_size
> >   end interface
> > 
> > While the standard may permit this construct, it may be prudent to 
> > not rename standard intrinsic procedures.
> > 
> Agreed. 
> I take it you mean it IS standard conforming, right? 

I a quick scan of F2003, I could not find anything that
say the construct above is nonconforming.  So, I believe
that it is permitted.

> Just to make sure. In any case, an ice is an ice.... 

Yes, indeed.  Fortunately, this one was easy to find
and fix.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683

[Bug fortran/30683] [4.2 only] internal compiler error: Segmentation fault

[kargl at gcc dot gnu dot org]

------- Comment #7 from kargl at gcc dot gnu dot org  2007-02-03 19:00 -------
Subject: Bug 30683

Author: kargl
Date: Sat Feb  3 18:59:53 2007
New Revision: 121548

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=121548
Log:
2007-02-02  Steven G. Kargl <kargl@gcc.gnu.org>

        PR fortran/30683
        * resolve.c (resolve_generic_f): Check for non-NULL sym.
        * gfortran.dg/interface_10.f


Added:
    branches/gcc-4_2-branch/gcc/testsuite/gfortran.dg/interface_10.f90
Modified:
    branches/gcc-4_2-branch/gcc/fortran/ChangeLog
    branches/gcc-4_2-branch/gcc/fortran/resolve.c
    branches/gcc-4_2-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683

[Bug fortran/30683] [4.2 only] internal compiler error: Segmentation fault

[kargl at gcc dot gnu dot org]

------- Comment #8 from kargl at gcc dot gnu dot org  2007-02-03 19:01 -------
Fixed on 4.2.


-- 

kargl at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30683