[Bug c/52493] New: tree check fail in ptr_derefs_may_alias_p

["dcb314 at hotmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52493

             Bug #: 52493
           Summary: tree check fail in ptr_derefs_may_alias_p
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dcb314@hotmail.com


Created attachment 26836
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26836
C source code

I just tried to compile the package fprobe-ulog-1.1
on gcc-4.8 trunk dated 20120302 on an AMD x86_64 box.

The compiler said

fprobe-ulog.c:634:7: internal compiler error: tree check: expected ssa_name,
have integer_cst in ptr_derefs_may_alias_p, at tree-ssa-alias.c:308
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed source code attached. Flag -O3 required.