[Bug tree-optimization/36508] New: [4.3 Regression] ICE in compute_attic

[jakub at gcc dot gnu dot org]

The attached testcase ICEs on ppc*-linux with -O2 -m32 and -O2 -m64:
internal compiler error: in compute_antic, at tree-ssa-pre.c:2020
2019          /* Theoretically possible, but *highly* unlikely.  */
2020          gcc_assert (num_iterations < 50);
num_iterations is 50.
The code is distilled from staden-io_lib, see http://bugzilla.redhat.com/450889


-- 
           Summary: [4.3 Regression] ICE in compute_attic
           Product: gcc
           Version: 4.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jakub at gcc dot gnu dot org
GCC target triplet: ppc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36508