[Bug tree-optimization/54488] New: tree loop invariant motion uses an excessive amount of memory

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54488

             Bug #: 54488
           Summary: tree loop invariant motion uses an excessive amount of
                    memory
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Keywords: memory-hog
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: rguenth@gcc.gnu.org


LIM works on the whole function, gathering all memory accesses of all loops at
a time instead of working on individual loop nests.  For the testcase in
PR46590 this uses 1GB of memory.