[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

--- Comment #4 from Zdenek Sojka <zsojka at seznam dot cz> 2010-11-18 15:46:05 UTC ---
This seems to have disappeared between r161659 and r163636.
I can't reproduce it anymore with r166868/x86_64-linux.

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

Sebastian Pop <spop at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.6.0
            Version|4.6.0                       |4.5.3
   Target Milestone|4.5.2                       |4.5.3

--- Comment #5 from Sebastian Pop <spop at gcc dot gnu.org> 2010-12-06 19:52:36 UTC ---
Git bisect points out that on trunk this was fixed by
http://gcc.gnu.org/viewcvs?view=revision&revision=163105

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

--- Comment #6 from Sebastian Pop <spop at gcc dot gnu.org> 2010-12-07 15:18:41 UTC ---
Author: spop
Date: Tue Dec  7 15:18:39 2010
New Revision: 167542

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167542
Log:
Fix PR44676: fix invariant phi node removal.

Backport from trunk
http://gcc.gnu.org/viewcvs?view=revision&revision=163105

2010-05-07  Sebastian Pop  <sebastian.pop@amd.com>

    Backport from mainline:
    2010-05-07  Sebastian Pop  <sebastian.pop@amd.com>

    PR tree-optimization/44676
    * graphite-sese-to-poly.c (loop_entry_phi_arg): Renamed
    phi_arg_in_outermost_loop.
    (remove_simple_copy_phi): Call phi_arg_in_outermost_loop.
    (remove_invariant_phi): Same.

Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/graphite-sese-to-poly.c

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

Sebastian Pop <spop at gcc dot gnu.org> changed:

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

--- Comment #7 from Sebastian Pop <spop at gcc dot gnu.org> 2010-12-07 15:20:10 UTC ---
Fixed.

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

H.J. Lu <hjl.tools at gmail dot com> changed:

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

--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> 2010-12-07 16:00:37 UTC ---
Missing testcases for both trunk and 4.5 branch.

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

--- Comment #9 from Sebastian Pop <spop at gcc dot gnu.org> 2010-12-07 16:27:33 UTC ---
Author: spop
Date: Tue Dec  7 16:27:28 2010
New Revision: 167554

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167554
Log:
Add missing testcase for PR44676.

2010-12-07  Sebastian Pop  <sebastian.pop@amd.com>

    PR tree-optimization/44676
    * gcc.dg/graphite/id-pr44676.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/id-pr44676.c
Modified:
    trunk/gcc/testsuite/ChangeLog

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

--- Comment #10 from Sebastian Pop <spop at gcc dot gnu.org> 2010-12-07 16:33:03 UTC ---
Author: spop
Date: Tue Dec  7 16:32:59 2010
New Revision: 167555

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167555
Log:
Add missing testcase for PR44676.

2010-12-07  Sebastian Pop  <sebastian.pop@amd.com>

    PR tree-optimization/44676
    * gcc.dg/graphite/id-pr44676.c: New.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/graphite/id-pr44676.c
Modified:
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

Sebastian Pop <spop at gcc dot gnu.org> changed:

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

--- Comment #11 from Sebastian Pop <spop at gcc dot gnu.org> 2010-12-07 16:34:44 UTC ---
Fixed.

[Bug tree-optimization/44676] New: [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[zsojka at seznam dot cz]

Command line:
$ gcc -O2 -fgraphite-identity -fprofile-generate testcase.c
or
$ gcc -O -funswitch-loops -fgraphite-identity -fprofile-generate testcase.c

Compiler output:
$ gcc -O -funswitch-loops -fgraphite-identity -fprofile-generate testcase.c
testcase.c: In function 'extend_options':
testcase.c:2:1: internal compiler error: in loop_entry_phi_arg, at
graphite-sese-to-poly.c:89
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r161383 - crash
r158095 - crash
r153685 - OK
4.5 r158978 - crash
4.4 r160770 - OK (with checking)


-- 
           Summary: [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at
                    graphite-sese-to-poly.c:89 with -fgraphite-identity -
                    fprofile-generate
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[zsojka at seznam dot cz]

------- Comment #1 from zsojka at seznam dot cz  2010-06-26 00:30 -------
Created an attachment (id=21011)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21011&action=view)
reduced testcase (from gcc.dg/pr28935.c)

Command line:
$ gcc -O -funswitch-loops -fgraphite-identity -fprofile-generate pr44676.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |spop at gcc dot gnu dot org
           Priority|P3                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[spop at gcc dot gnu dot org]

------- Comment #2 from spop at gcc dot gnu dot org  2010-07-22 17:02 -------
Mine.

On trunk I am able to reproduce the ICE.
This is fixed in the Graphite branch, probably by the cleanup of the IV
canonicalization.
I will investigate a little bit more what happens in trunk, and if this is
really fixed by my changes in the Graphite branch I will close this PR when
these changes will be committed to trunk.

Sebastian


-- 

spop at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |spop at gcc dot gnu dot org
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-07-22 17:02:04
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676

[Bug tree-optimization/44676] [4.5/4.6 Regression] ICE: in loop_entry_phi_arg, at graphite-sese-to-poly.c:89 with -fgraphite-identity -fprofile-generate

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-07-31 09:29 -------
GCC 4.5.1 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.5.1                       |4.5.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44676