[Bug fortran/45909] New: f951.exe: internal compiler error: Segmentation fault

[Bug fortran/45909] New: f951.exe: internal compiler error: Segmentation fault

[nma at 12000 dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45909

           Summary: f951.exe: internal compiler error: Segmentation fault
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: nma@12000.org


Created attachment 21970
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=21970
this is the only extra file created when I typed gfortran -save-temps  t.f90

I was playing around with gfortran. This small fortran code generated the seg
fault in the compiler. (it is probably not valid code, do not know).

-----------------------
program main
integer, parameter :: my_number=3
INTEGER, PARAMETER :: MaxNLevels = 100


TYPE LevelSpecsType
  INTEGER :: NLevels
  REAL, DIMENSION(MaxNLevels) :: LevelHeight
END TYPE LevelSpecsType

real :: zerosData(MaxNLevels - my_number ) = 0.0

TYPE(LevelSpecsType), PARAMETER :: PoorInputLevelSpecs = &
& LevelSpecsType(my_number,(/0.,610.,1500.,  zerosData /))

end program
-----------------------
$ gfortran -save-temps  t.f90
f951.exe: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

$ uname -a
MINGW32_NT-6.1 ME-PC 1.0.15(0.47/3/2) 2010-07-06 22:04 i686 Msys

$ gfortran --version
GNU Fortran (GCC) 4.5.0


$ gcc -v
Using built-in specs.
COLLECT_GCC=C:\MinGW\bin\gcc.exe
COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/4.5.0/lto-wrapper.exe
Target: mingw32
Configured with: ../gcc-4.5.0/configure
--enable-languages=c,c++,ada,fortran,objc,obj-c++ --disable-sjlj-exceptions
--wi
th-dwarf2 --enable-shared --enable-libgomp --disable-win32-registry
--enable-libstdcxx-debug --enable-version-specific-r
untime-libs --disable-werror --build=mingw32 --prefix=/mingw
Thread model: win32
gcc version 4.5.0 (GCC)


attached t.s file created

thanks
--Nasser

[Bug fortran/45909] f951.exe: internal compiler error: Segmentation fault

[Joost.VandeVondele at pci dot uzh.ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45909

Joost VandeVondele <Joost.VandeVondele at pci dot uzh.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-invalid-code
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2010.10.06 10:19:29
      Known to work|                            |4.6.0
     Ever Confirmed|0                           |1
      Known to fail|                            |4.4.0, 4.5.0
           Severity|major                       |normal

--- Comment #1 from Joost VandeVondele <Joost.VandeVondele at pci dot uzh.ch> 2010-10-06 10:19:29 UTC ---
This is indeed failing for 4.4 and 4.5, but passes in 4.6. I'll leave it open
to see if someone wants to backport the fix to 4.X.

It is invalid code as you suggested:

> gfortran test.f90
test.f90:14.43:

& LevelSpecsType(my_number,(/0.,610.,1500.,  zerosData /))
                                           1
Error: Array 'zerosdata' at (1) is a variable, which does not reduce to a
constant expression

So you can declare zerosData with a parameter attribute to get it to work in
4.5 as well.

[Bug fortran/45909] [4.4/4.5] internal compiler error

[dfranke at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45909

Daniel Franke <dfranke at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING
                 CC|                            |dfranke at gcc dot gnu.org
            Summary|f951.exe: internal compiler |[4.4/4.5] internal compiler
                   |error: Segmentation fault   |error

--- Comment #2 from Daniel Franke <dfranke at gcc dot gnu.org> 2010-12-27 00:50:35 UTC ---
Set to WAITING. If nobody picks this up in a while, this PR shall be closed.

[Bug fortran/45909] [4.4/4.5] internal compiler error

[fxcoudert at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45909

Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
                 CC|                            |fxcoudert at gcc dot
                   |                            |gnu.org
         Resolution|                            |FIXED
   Target Milestone|---                         |4.6.0

--- Comment #3 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> 2011-03-12 10:15:24 UTC ---
Two months and a half have passed, noone has proposed a backport, and 4.6.0
should be released soon (reducing the incentive for backporting). Thus,
closing. Please reopen if you want to backport.