[Bug tree-optimization/48387] New: ICE with -floop-flatten

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48387

           Summary: ICE with -floop-flatten
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: rguenth@gcc.gnu.org
                CC: spop@gcc.gnu.org


When compiling gfortran.dg/reassoc_4.f with -O2 -ffast-math -floop-flatten I
get

gcc> /abuild/rguenther/trunk-g/gcc/testsuite/gfortran/../../gfortran
-B/abuild/rguenther/trunk-g/gcc/testsuite/gfortran/../../
-B/abuild/rguenther/trunk-g/x86_64-unknown-linux-gnu/./libgfortran/
/space/rguenther/src/svn/trunk/gcc/testsuite/gfortran.dg/reassoc_4.f   -O  -O2
-ffast-math -S  -o reassoc_4.s -floop-flatten
PPL error code -3
PPL::C_Polyhedron::maximize(e, ...):
this->space_dimension() == 11, e.space_dimension() == 12.

thus, PPL aborts on me (that's doubly bad).

No idea if this is a GCC or PPL issue.  This is PPL 0.11 with cloog 0.15.10.