[Bug tree-optimization/42334] segfault in graphite-poly.h for 200.sixtrack

["spop at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #2 from spop at gcc dot gnu dot org  2009-12-15 08:39 -------
Subject: Bug 42334

Author: spop
Date: Tue Dec 15 08:39:25 2009
New Revision: 155248

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155248
Log:
Fix PR42334: correct the update of the LST on loop interchange and
distribution.

2009-12-15  Sebastian Pop  <sebastian.pop@amd.com>

        PR middle-end/42178
        PR middle-end/42334
        * graphite-interchange.c (lst_perfect_nestify): Reset to NULL the LSTs
        that are empty.
        (lst_do_interchange_1): Renamed lst_interchange_select_inner.
        (lst_try_interchange): Reimplemented.
        (lst_interchange_select_inner): Same.
        (lst_do_interchange): Renamed lst_interchange_select_outer.
        Reimplemented.
        (scop_do_interchange): Update use of lst_interchange_select_outer.

        * testsuite/g++.dg/graphite/pr42130.C: Add -fgraphite-identity.
        * testsuite/gcc.dg/graphite/block-0.c: Un-XFAILed.
        * testsuite/gcc.dg/graphite/pr42211.c: New.
        * testsuite/gfortran.dg/graphite/pr42334.f90: New.

Added:
    branches/graphite/gcc/testsuite/gcc.dg/graphite/pr42211.c
    branches/graphite/gcc/testsuite/gfortran.dg/graphite/pr42334.f90
Modified:
    branches/graphite/gcc/ChangeLog.graphite
    branches/graphite/gcc/graphite-interchange.c
    branches/graphite/gcc/testsuite/g++.dg/graphite/pr42130.C
    branches/graphite/gcc/testsuite/gcc.dg/graphite/block-0.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42334