[Bug middle-end/49147] New: graphite branch ICEs with -fgraphite-opencl-ignore-dep

[Bug middle-end/49147] New: graphite branch ICEs with -fgraphite-opencl-ignore-dep

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49147

           Summary: graphite branch ICEs with -fgraphite-opencl-ignore-dep
           Product: gcc
           Version: lno
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: spop@gcc.gnu.org


Created attachment 24348
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24348
This is the same as gcc.dg/graphite/block-0.c

Compiling some testcases from the graphite testsuite, I got an ICE with:

cc1 -fgraphite-opencl -fgraphite-opencl-ignore-dep -g -Ofast block-0.c

block-0.c: In function ‘foo’:
block-0.c:10:1: internal compiler error: Segmentation fault

The compiler does not ICE when removing -fgraphite-opencl-ignore-dep

[Bug middle-end/49147] graphite branch ICEs with -fgraphite-opencl-ignore-dep

[mr.kayrick at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49147

Alexey Kravets <mr.kayrick at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mr.kayrick at gmail dot com

--- Comment #1 from Alexey Kravets <mr.kayrick at gmail dot com> 2011-05-26 06:46:00 UTC ---
Confirmed.

This problem is caused by bug in opencl_get_perfect_nested_loop_depth.
This functions ignores  -fgraphite-opencl-ignore-dep flag while
opencl_transform_stmt_list considers this flag.

I have a patch for this issue.

[Bug middle-end/49147] graphite branch ICEs with -fgraphite-opencl-ignore-dep

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49147

--- Comment #2 from Sebastian Pop <spop at gcc dot gnu.org> 2011-05-26 15:11:52 UTC ---
Author: spop
Date: Thu May 26 15:11:48 2011
New Revision: 174293

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174293
Log:
Fix PR49147: ICE with -fgraphite-opencl-ignore-dep

2011-05-26  Alexey Kravets  <kayrick@ispras.ru>

    PR middle-end/49147
    * graphite-opencl-codegen.c
    (opencl_get_perfect_nested_loop_depth): Use
    enabled_dependency_in_clast_loop_p instead of
    dependency_in_clast_loop_p.
    * graphite-opencl.c (opencl_transform_stmt_list): Ditto.
    (enabled_dependency_in_clast_loop_p): New.
    * graphite-opencl.h (enabled_dependency_in_clast_loop_p): Export.

    * gcc.dg/graphite/pr49147.c: New test.

Added:
    branches/graphite/gcc/testsuite/gcc.dg/graphite/pr49147.c
Modified:
    branches/graphite/gcc/ChangeLog.graphite
    branches/graphite/gcc/graphite-opencl-codegen.c
    branches/graphite/gcc/graphite-opencl.c
    branches/graphite/gcc/graphite-opencl.h

[Bug middle-end/49147] graphite branch ICEs with -fgraphite-opencl-ignore-dep

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49147

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

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

--- Comment #3 from Sebastian Pop <spop at gcc dot gnu.org> 2011-05-26 15:21:41 UTC ---
Fixed.