[Bug tree-optimization/16022] New: Excessive memory usage of vectorizer

["rguenth at tat dot physik dot uni-tuebingen dot de" <gcc-bugzilla at gcc dot gnu dot org>]

Trying to compile the tramp3d-v3 testcase
(http://www.tat.physik.uni-tuebingen.de/~rguenth/gcc/tramp3d-v3.cpp.gz)
with vectorization support uses too much memory for my 2GB machine:

~/ix86/gccssa-lno/bin/g++ -O2 -ftree-vectorize -march=pentium4 -c tramp3d-v3.cpp
killed

g++ (GCC) 3.5-tree-ssa-lno 20040615 (merged 20040612)

Note this is lno with the leafify patch, without leafify memory requirements are
down, but nothing is vectorized.  Leafify patch is at
http://www.tat.physik.uni-tuebingen.de/~rguenth/gcc/leafify-ssa-2

-- 
           Summary: Excessive memory usage of vectorizer
           Product: gcc
           Version: lno
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at tat dot physik dot uni-tuebingen dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16022