[Bug rtl-optimization/55151] New: [4.8 Regression] ICE: in assign_by_spills, at lra-assigns.c:1217 with -fPIC

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55151

             Bug #: 55151
           Summary: [4.8 Regression] ICE: in assign_by_spills, at
                    lra-assigns.c:1217 with -fPIC
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 28582
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28582
reduced testcase (from gcc.dg/torture/pr20314-2.c)

Compiler output:
$ gcc -fPIC testcase.c         
testcase.c: In function 'f4':
testcase.c:9:1: internal compiler error: in assign_by_spills, at
lra-assigns.c:1217
 }
 ^
0x8d0249 assign_by_spills
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1217
0x8d21eb lra_assign()
        /mnt/svn/gcc-trunk/gcc/lra-assigns.c:1369
0x8ce424 lra(_IO_FILE*)
        /mnt/svn/gcc-trunk/gcc/lra.c:2310
0x883d66 do_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4624
0x883d66 rest_of_handle_reload
        /mnt/svn/gcc-trunk/gcc/ira.c:4736
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