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* [Bug tree-optimization/43026]  New: ICE in sese.c with -fgraphite-identity in 447.dealII
@ 2010-02-11  1:01 janis at gcc dot gnu dot org
  2010-02-11  1:02 ` [Bug tree-optimization/43026] " janis at gcc dot gnu dot org
                   ` (10 more replies)
  0 siblings, 11 replies; 12+ messages in thread
From: janis at gcc dot gnu dot org @ 2010-02-11  1:01 UTC (permalink / raw)
  To: gcc-bugs

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GCC trunk gets an internal compiler error when building SPEC CPU2006 test
447.dealII on powerpc64-linux with "-O2 -fgraphite-identity" or "-O2
-floop-parallelize-all" for either -m32 or -m64, as demonstrated by a minimized
testcase that I'll attach to this PR.  Perhaps someone else will be able to
minimize it more.

elm3b149% /home/janis/tools/gcc-trunk-anonsvn/bin/g++ -c -O2
-fgraphite-identity bug.cc
bug.cc: In member function ‘void Base<dim>::getf2d(vector<Tensor<2, dim> >&)
const [with int dim = 3]’:
bug.cc:38:6: internal compiler error: in expand_scalar_variables_expr, at
sese.c:907
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

The testcase and dealII compile correctly with GCC 4.4.2 using "-O2
-fgraphite-identity".  The failure starts with this patch:

    http://gcc.gnu.org/viewcvs?view=rev&rev=155739

    r155739 | spop | 2010-01-08 16:07:18 +0000 (Fri, 08 Jan 2010)


-- 
           Summary: ICE in sese.c with -fgraphite-identity in 447.dealII
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: janis at gcc dot gnu dot org
GCC target triplet: powerpc64-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43026


^ permalink raw reply	[flat|nested] 12+ messages in thread
end of thread, other threads:[~2010-02-23 13:04 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-02-11  1:01 [Bug tree-optimization/43026] New: ICE in sese.c with -fgraphite-identity in 447.dealII janis at gcc dot gnu dot org
2010-02-11  1:02 ` [Bug tree-optimization/43026] " janis at gcc dot gnu dot org
2010-02-11 10:05 ` [Bug tree-optimization/43026] [4.5 Regression] " rguenth at gcc dot gnu dot org
2010-02-11 16:57 ` [Bug tree-optimization/43026] [4.5 Regression][graphite] " rguenth at gcc dot gnu dot org
2010-02-17 17:13 ` uramakrishna at gmail dot com
2010-02-17 17:33 ` zsojka at seznam dot cz
2010-02-17 23:29 ` zsojka at seznam dot cz
2010-02-22  0:42 ` grosser at gcc dot gnu dot org
2010-02-22 13:11 ` spop at gcc dot gnu dot org
2010-02-22 15:20 ` spop at gcc dot gnu dot org
2010-02-23 12:59 ` spop at gcc dot gnu dot org
2010-02-23 13:04 ` spop at gcc dot gnu dot org

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