[Bug rtl-optimization/55330] New: [4.8 Regression] ICE: Maximum number of LRA constraint passes is achieved (15) on gfortran.dg/actual_array_constructor_1.f90

[Bug rtl-optimization/55330] New: [4.8 Regression] ICE: Maximum number of LRA constraint passes is achieved (15) on gfortran.dg/actual_array_constructor_1.f90

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55330

             Bug #: 55330
           Summary: [4.8 Regression] ICE: Maximum number of LRA constraint
                    passes is achieved (15) on
                    gfortran.dg/actual_array_constructor_1.f90
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 28690
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28690
gfortran.dg/actual_array_constructor_1.f90

Compiler output:
$ gcc -O -fPIC -fno-dse -fno-guess-branch-probability
actual_array_constructor_1.f90
actual_array_constructor_1.f90: In function 'p':
actual_array_constructor_1.f90:20:0: internal compiler error: Maximum number of
LRA constraint passes is achieved (15)

   end subroutine
 ^
0x95f97e lra_constraints(bool)
        /mnt/svn/gcc-trunk/gcc/lra-constraints.c:3284
0x94ec3c lra(_IO_FILE*)
        /mnt/svn/gcc-trunk/gcc/lra.c:2274
0x906456 do_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4624
0x906456 rest_of_handle_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4737
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.


Another set of compiler flags with the same result:
$ gcc -O -fPIC -fstack-protector -fno-guess-branch-probability
actual_array_constructor_1.f90
actual_array_constructor_1.f90: In function 'p':
actual_array_constructor_1.f90:20:0: internal compiler error: Maximum number of
LRA constraint passes is achieved (15)

   end subroutine
 ^
0x95f97e lra_constraints(bool)
        /mnt/svn/gcc-trunk/gcc/lra-constraints.c:3284
0x94ec3c lra(_IO_FILE*)
        /mnt/svn/gcc-trunk/gcc/lra.c:2274
0x906456 do_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4624
0x906456 rest_of_handle_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4737
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.

Tested revisions:
r193495 - crash

[Bug rtl-optimization/55330] [4.8 Regression] ICE: Maximum number of LRA constraint passes is achieved (15) on gfortran.dg/actual_array_constructor_1.f90

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55330

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-11-14 21:43:28 UTC ---
I don't see it on x86_64-apple-darwin10 (revisions 193495+patches and 193329).

[Bug rtl-optimization/55330] [4.8 Regression] ICE: Maximum number of LRA constraint passes is achieved (15) on gfortran.dg/actual_array_constructor_1.f90

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55330

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-11-15
                 CC|                            |jakub at gcc dot gnu.org
   Target Milestone|---                         |4.8.0
     Ever Confirmed|0                           |1

[Bug rtl-optimization/55330] [4.8 Regression] ICE: Maximum number of LRA constraint passes is achieved (15) on gfortran.dg/actual_array_constructor_1.f90

[dcb314 at hotmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55330

David Binderman <dcb314 at hotmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dcb314 at hotmail dot com

--- Comment #2 from David Binderman <dcb314 at hotmail dot com> 2012-11-16 09:13:53 UTC ---
(In reply to comment #1)
> I don't see it on x86_64-apple-darwin10 (revisions 193495+patches and 193329).

Looks like a duplicate of 55122.

[Bug rtl-optimization/55330] [4.8 Regression] ICE: Maximum number of LRA constraint passes is achieved (15) on gfortran.dg/actual_array_constructor_1.f90

[vmakarov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55330

--- Comment #3 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2012-11-16 16:32:08 UTC ---
Author: vmakarov
Date: Fri Nov 16 16:32:02 2012
New Revision: 193567

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193567
Log:
2012-11-16  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/55330
    * lra-constraints.c (MAX_INHERITANCE_PASSES): New macro.
    (lra_inheritance, lra_undo_inheritance): Use it to limit number of
    the passes.

2012-11-16  Vladimir Makarov  <vmakarov@redhat.com>

    PR rtl-optimization/55330
    * gfortran.dg/pr55330.f90: New test.


Added:
    trunk/gcc/testsuite/gfortran.dg/pr55330.f90
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lra-constraints.c
    trunk/gcc/testsuite/ChangeLog

[Bug rtl-optimization/55330] [4.8 Regression] ICE: Maximum number of LRA constraint passes is achieved (15) on gfortran.dg/actual_array_constructor_1.f90

[vmakarov at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55330

Vladimir Makarov <vmakarov at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |vmakarov at redhat dot com

--- Comment #4 from Vladimir Makarov <vmakarov at redhat dot com> 2012-11-16 16:39:02 UTC ---
(In reply to comment #2)
> (In reply to comment #1)
> > I don't see it on x86_64-apple-darwin10 (revisions 193495+patches and 193329).
> 
> Looks like a duplicate of 55122.

The both have the same end and diagnostics but reasons for this are different.

[Bug rtl-optimization/55330] [4.8 Regression] ICE: Maximum number of LRA constraint passes is achieved (15) on gfortran.dg/actual_array_constructor_1.f90

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55330

Richard Biener <rguenth at gcc dot gnu.org> changed:

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

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-07 10:08:04 UTC ---
Fixed.