[Bug tree-optimization/54831] New: [4.8 Regression] ICE: in vt_add_function_parameter, at var-tracking.c:9412 with -O -fno-split-wide-types -g

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54831

             Bug #: 54831
           Summary: [4.8 Regression] ICE: in vt_add_function_parameter, at
                    var-tracking.c:9412 with -O -fno-split-wide-types -g
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 28368
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28368
reduced testcase

Compiler output:
$ gcc -O -fno-split-wide-types -g testcase.C 
testcase.C: In function 'void foo(mptr)':
testcase.C:16:1: internal compiler error: in vt_add_function_parameter, at
var-tracking.c:9412
 }
 ^
0xd7814a vt_add_function_parameter
        /mnt/svn/gcc-trunk/gcc/var-tracking.c:9412
0xd7825f vt_add_function_parameters
        /mnt/svn/gcc-trunk/gcc/var-tracking.c:9516
0xd78db7 vt_initialize
        /mnt/svn/gcc-trunk/gcc/var-tracking.c:9772
0xd827d6 variable_tracking_main_1
        /mnt/svn/gcc-trunk/gcc/var-tracking.c:10016
0xd827d6 variable_tracking_main()
        /mnt/svn/gcc-trunk/gcc/var-tracking.c:10069
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r192080 - crash
r191586 - crash
4.7 r191640 - OK