[Bug tree-optimization/37950] New: failure in polyhedron benchmark when ftree-parallelize-loops is enabled

[Bug tree-optimization/37950] New: failure in polyhedron benchmark when ftree-parallelize-loops is enabled

[razya at il dot ibm dot com]

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gas_dyn fails when autopar is enabled.
The failure is durig alias computation for one of the new parallel functions
created by autopar.

gas_dyn.f90: In function âcortesa._loopfn.0â:
gas_dyn.f90:1791: internal compiler error: in referenced_var_lookup, at
tree-dfa.c:565
Please submit a full bug report


#0  referenced_var_lookup (uid=3942) at ../../gcc/gcc/tree-dfa.c:564
#1  0x105700e4 in update_alias_info_1 (stmt=0xf7e51080, ai=0x11132a08)
    at ../../gcc/gcc/tree-ssa-alias.c:2713
#2  0x10570d70 in update_alias_info (ai=0x11132a08)
    at ../../gcc/gcc/tree-ssa-alias.c:2742
#3  0x1056dd0c in compute_may_aliases () at ../../gcc/gcc/tree-ssa-alias.c:1764


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           Summary: failure in polyhedron benchmark when ftree-parallelize-
                    loops is enabled
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: razya at il dot ibm dot com
 GCC build triplet: powerpc64-suse-linux
  GCC host triplet: powerpc64-suse-linux
GCC target triplet: powerpc64-suse-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37950

[Bug tree-optimization/37950] failure in polyhedron benchmark when ftree-parallelize-loops is enabled

[paolo dot carlini at oracle dot com]

------- Comment #1 from paolo dot carlini at oracle dot com  2008-10-29 13:18 -------
*** Bug 37952 has been marked as a duplicate of this bug. ***


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37950

[Bug tree-optimization/37950] failure in polyhedron benchmark when ftree-parallelize-loops is enabled

[rakdver at gcc dot gnu dot org]

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rakdver at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rakdver at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2008-11-09 19:25:15
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37950

[Bug tree-optimization/37950] failure in polyhedron benchmark when ftree-parallelize-loops is enabled

[rakdver at gcc dot gnu dot org]

------- Comment #2 from rakdver at gcc dot gnu dot org  2008-11-12 04:32 -------
Patch: http://gcc.gnu.org/ml/gcc-patches/2008-11/msg00506.html


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rakdver at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2008-
                   |                            |11/msg00506.html
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37950

[Bug tree-optimization/37950] failure in polyhedron benchmark when ftree-parallelize-loops is enabled

[rakdver at gcc dot gnu dot org]

------- Comment #3 from rakdver at gcc dot gnu dot org  2008-11-16 04:49 -------
Subject: Bug 37950

Author: rakdver
Date: Sun Nov 16 04:48:25 2008
New Revision: 141911

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141911
Log:
        PR tree-optimization/37950
        * tree-flow-inline.h (memory_partition): Return NULL when aliases were
        not computed for the current function.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-flow-inline.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37950