[Bug tree-optimization/43924] New: [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[Bug tree-optimization/43924] New: [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[dominiq at lps dot ens dot fr]

Since revision 158788 (see
http://gcc.gnu.org/ml/gcc-regression/2010-04/msg00294.html)
gfortran.dg/array_constructor_11.f90 fails with '-O3 -g' with:

/opt/gcc/_clean/gcc/testsuite/gfortran.dg/array_constructor_11.f90:6:0:
internal compiler error: in output_die, at dwarf2out.c:10649


-- 
           Summary: [4.6 Regression] FAIL:
                    gfortran.dg/array_constructor_11.f90  -O3 -g  (internal
                    compiler error)
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dominiq at lps dot ens dot fr


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[kargl at gcc dot gnu dot org]

------- Comment #1 from kargl at gcc dot gnu dot org  2010-04-28 19:08 -------
The regression is also seen on i686-*-freebsd.  The
regression dissappears if r158788 is reverted.


-- 

kargl at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jh at suse dot cz
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-04-28 19:08:00
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[dominiq at lps dot ens dot fr]

------- Comment #2 from dominiq at lps dot ens dot fr  2010-04-28 19:21 -------
I did not filled the triplets since I see the ICE on *-darwin-* and *-linux-*
as well.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[burnus at gcc dot gnu dot org]

-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |burnus at gcc dot gnu dot
                   |                            |org
           Keywords|                            |ice-on-valid-code
   Target Milestone|---                         |4.6.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[kargl at gcc dot gnu dot org]

------- Comment #3 from kargl at gcc dot gnu dot org  2010-04-28 21:35 -------
*** Bug 43928 has been marked as a duplicate of this bug. ***


-- 

kargl at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl dot tools at gmail dot
                   |                            |com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[hjl dot tools at gmail dot com]

------- Comment #4 from hjl dot tools at gmail dot com  2010-04-28 22:01 -------
It is caused by revision 158788:

http://gcc.gnu.org/ml/gcc-cvs/2010-04/msg00895.html


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[kargl at gcc dot gnu dot org]

------- Comment #5 from kargl at gcc dot gnu dot org  2010-04-28 23:07 -------
Comment propagated from the duplicate PR.


It appears to be an in-lining issue.  This reduced case

program main
  implicit none
  call build (77)
contains
  subroutine build (order)
    integer :: order, i, j

    call test (1, order, 3,  (/ (i, i = 1, order, 3) /))
    call test (order, 1, -3, (/ (i, i = order, 1, -3) /))

    do j = 0, 1
      call test (order + j, order, 5,  (/ (i, i = order + j, order, 5) /))
    end do

  end subroutine build

  subroutine test (from, to, step, values)
    integer, dimension (:) :: values
    integer :: from, to, step, last, i

    last = 0
    do i = from, to, step
      last = last + 1
      if (values (last) .ne. i) call abort
    end do
    if (size (values, dim = 1) .ne. last) call abort
  end subroutine test

end program main

gives
laptop:kargl[230] gfc4x -c -g -O3 array_constructor_11.f90
array_constructor_11.f90:6:0: internal compiler error: in output_die, at
dwarf2out.c:10649
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
laptop:kargl[231] gfc4x -c -g -O3 -fno-inline array_constructor_11.f90

where the last command succeeds.

Note, if I remove any one of the calls to test() or remove either
if-statement within test(), the ICE goes away.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[hp at gcc dot gnu dot org]

------- Comment #6 from hp at gcc dot gnu dot org  2010-04-29 20:40 -------
Well, guess what, cris-elf too!
Worked with 158780, failed with 158788 (and after) as in the description,
except the line number I see for r158788 is 10648; I'm guessing the description
is from 158793 or later.


-- 

hp at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hp at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[ro at gcc dot gnu dot org]

------- Comment #7 from ro at gcc dot gnu dot org  2010-05-12 15:54 -------
Also on i386-pc-solaris2.1[01] and sparc-sun-solaris2.1[01].


-- 

ro at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ro at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[dominiq at lps dot ens dot fr]

------- Comment #8 from dominiq at lps dot ens dot fr  2010-05-13 14:25 -------


*** This bug has been marked as a duplicate of 44114 ***


-- 

dominiq at lps dot ens dot fr changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[hjl dot tools at gmail dot com]

------- Comment #9 from hjl dot tools at gmail dot com  2010-05-13 14:31 -------
Reopen. This bug report has more info than PR 44114.


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|DUPLICATE                   |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[hjl dot tools at gmail dot com]

------- Comment #10 from hjl dot tools at gmail dot com  2010-05-13 14:31 -------
*** Bug 44114 has been marked as a duplicate of this bug. ***


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tkoenig at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[hp at gcc dot gnu dot org]

------- Comment #11 from hp at gcc dot gnu dot org  2010-06-17 02:20 -------
Disappeared for cris-elf in (160828:r160836], which agrees i686-linux results
on gcc100 at <http://gcc.gnu.org/ml/gcc-testresults/2010-06/msg01649.html>
(160820) and <http://gcc.gnu.org/ml/gcc-testresults/2010-06/msg01712.html>
(160836).  A deliberate fix (perhaps as a side-effect of fixing PR43905) or
just accidental cover-up?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[kargl at gcc dot gnu dot org]

------- Comment #12 from kargl at gcc dot gnu dot org  2010-06-17 04:43 -------
(In reply to comment #11)
> Disappeared for cris-elf in (160828:r160836], which agrees i686-linux results
> on gcc100 at <http://gcc.gnu.org/ml/gcc-testresults/2010-06/msg01649.html>
> (160820) and <http://gcc.gnu.org/ml/gcc-testresults/2010-06/msg01712.html>
> (160836).  A deliberate fix (perhaps as a side-effect of fixing PR43905) or
> just accidental cover-up?
> 

I see the same thing with i686-*-freebsd.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[kargl at gcc dot gnu dot org]

------- Comment #13 from kargl at gcc dot gnu dot org  2010-06-17 05:08 -------
(In reply to comment #12)
> (In reply to comment #11)
> > Disappeared for cris-elf in (160828:r160836], which agrees i686-linux results
> > on gcc100 at <http://gcc.gnu.org/ml/gcc-testresults/2010-06/msg01649.html>
> > (160820) and <http://gcc.gnu.org/ml/gcc-testresults/2010-06/msg01712.html>
> > (160836).  A deliberate fix (perhaps as a side-effect of fixing PR43905) or
> > just accidental cover-up?
> > 
> 
> I see the same thing with i686-*-freebsd.

REverting the patch for 43905 with

svn merge -r 160832:160831 .

indeed shows that the ICE returns.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924

[Bug tree-optimization/43924] [4.6 Regression] FAIL: gfortran.dg/array_constructor_11.f90 -O3 -g (internal compiler error)

[dominiq at lps dot ens dot fr]

------- Comment #14 from dominiq at lps dot ens dot fr  2010-06-17 12:30 -------
>From comments #11 to #13, given links and
http://gcc.gnu.org/ml/gcc-patches/2010-06/msg01744.html closing as fixed.


-- 

dominiq at lps dot ens dot fr changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43924