[Bug fortran/38041] New: -O2 -fgraphite-identity causes ICE compiling channel.f90 Polyhedron 2005 benchmark

[Bug fortran/38041] New: -O2 -fgraphite-identity causes ICE compiling channel.f90 Polyhedron 2005 benchmark

[howarth at nitro dot med dot uc dot edu]

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The channel.f90 Polyhedron 2005 benchmark ICEs the gfortran compiler in current
gcc trunk when compiled with "-O2 -fgraphite-identity" with the following
error...

channel.f90: In function ‘sw’:
channel.f90:6: internal compiler error: in expand_scalar_variables_expr, at
graphite.c:3594
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

This ICE also occurs with "-O1 -fgraphite-identity" but not with "-O0
-fgraphite-identity".


-- 
           Summary: -O2 -fgraphite-identity causes ICE compiling channel.f90
                    Polyhedron 2005 benchmark
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: howarth at nitro dot med dot uc dot edu
 GCC build triplet: i686-apple-darwin9
  GCC host triplet: i686-apple-darwin9
GCC target triplet: i686-apple-darwin9


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38041

[Bug middle-end/38041] -O2 -fgraphite-identity causes ICE compiling channel.f90 Polyhedron 2005 benchmark

[howarth at nitro dot med dot uc dot edu]

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------- Comment #1 from howarth at nitro dot med dot uc dot edu  2008-11-07 02:45 -------
Compiling the rnflow.f90 benchmark with "-O2 -fgraphite-identity" produces the
same ICE...

rnflow.f90: In function ‘rnflow’:
rnflow.f90:4478: internal compiler error: in expand_scalar_variables_expr, at
graphite.c:3594
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Compiling  rnflow.f90 with "-O1 -fgraphite-identity" also ICEs with the same
error but
"-O0 -fgraphite-identity" doesn't ice the compiler.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38041

[Bug middle-end/38041] -O2 -fgraphite-identity causes ICE compiling channel.f90 Polyhedron 2005 benchmark

[howarth at nitro dot med dot uc dot edu]

------- Comment #2 from howarth at nitro dot med dot uc dot edu  2008-11-07 13:36 -------
Confirmed in current graphite branch as well.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38041

[Bug middle-end/38041] -O2 -fgraphite-identity causes ICE compiling channel.f90 Polyhedron 2005 benchmark

[howarth at nitro dot med dot uc dot edu]

------- Comment #3 from howarth at nitro dot med dot uc dot edu  2008-11-07 15:24 -------
Looks like a duplicate of PR37851.

*** This bug has been marked as a duplicate of 37851 ***


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howarth at nitro dot med dot uc dot edu changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38041