[lno] ICE in coalesce_abnormal_edges, at tree-outof-ssa.c:645

[Zdenek Dvorak]

Hello,

> With the tramp3d-v3.cpp testcase I get an ICE with todays lno branch if
> compiling with -O2 -funroll-loops -ffast-math -march=athlon:
> 
>  Conflict pt_466 and pt_435 across an abnormal edge from BB17->BB19
> tramp3d-v3.cpp: In member function `void
> RefBlockController<T>::deleteStorage() [with T = FieldEngineBaseData<3,
> double, MultiPatch<GridTag, Remote<Brick> > >]':
> tramp3d-v3.cpp:10513: internal compiler error: in coalesce_abnormal_edges,
> at tree-outof-ssa.c:645
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> 
> g++ (GCC) 3.5-tree-ssa-lno 20040416 (merged 20040321)
> compiler built with checking disabled.
> 
> Testcase fetchable at
> http://www.tat.physik.uni-tuebingen.de/~rguenth/gcc/tramp3d-v3.cpp.gz
> 
> Maybe a merge from tree-ssa would help (ICE doesn't look lno related at
> first look)

probably not; I am fairly sure it is a consequence of one of my last
patches (although I don't have an idea what precisely could go wrong).

Could you please send me a preprocessed source?

Zdenek